Cardio Clear 7 Heart & Energy Claims (My Investigative Review)

Heart health becomes increasingly important as we age, particularly when declining energy, reduced physical stamina, and everyday fatigue begin affecting our routines. Although countless cardiovascular supplements promise impressive improvements, I believe the most useful way to evaluate them is to examine their actual ingredients, scientific foundations, safety considerations, and practical advantages rather than accepting advertising claims at face value.

Cardio Clear 7 attracted my attention because it approaches cardiovascular wellness through cellular energy production. Instead of relying on a conventional collection of vitamins, the formula combines Coenzyme Q10, PQQ, and Shilajit Extract, three ingredients associated with mitochondrial function and antioxidant activity. This combination presents an interesting nutritional approach, although the strength of the scientific evidence varies considerably between ingredients.

This is my detailed, research-based review of what I discovered about Cardio Clear 7, including its proposed results, ingredients, possible side effects, dosage, customer feedback, and whether it appears to be a scam or legitimate supplement. I have also investigated the scientific research behind its formulation, compared relevant alternatives, and examined the manufacturer’s satisfaction guarantee to help readers make informed purchasing decisions.

Cardio Clear 7 Product Overview

Before examining the scientific details, I wanted to establish exactly what the supplement contains, who manufactures it, and what customers should reasonably expect from purchasing it.

My initial assessment: The formulation offers a focused combination of ingredients with plausible roles in cellular energy metabolism. Its daily convenience and lengthy advertised guarantee strengthen its consumer appeal, but I would still distinguish those advantages from proof of cardiovascular effectiveness.

What Is Cardio Clear 7?

Cardio Clear 7 is a dietary supplement marketed for adults interested in supporting their cardiovascular system while maintaining healthy cellular energy production. Developed under the Simple Promise brand, it combines three highlighted active ingredients in a capsule-based formulation intended to complement healthy lifestyle habits.

The product’s distinguishing characteristic is its emphasis on mitochondria, the cellular structures responsible for producing much of the energy required by the body. Heart muscle cells are particularly energy-dependent because they continuously contract and relax throughout life. Supporting normal mitochondrial processes is therefore a biologically relevant nutritional objective, even though improving those processes through supplementation does not automatically translate into measurable improvements in heart function.

The manufacturer associates the formula with healthy circulation, antioxidant protection, cardiovascular wellness, and everyday vitality. These are nutritional support claims, not evidence that the supplement can clear blocked arteries, reverse cardiovascular disease, normalize abnormal blood pressure, or replace prescribed medications.

From my perspective, its strongest appeal is to adults seeking a relatively straightforward supplement rather than a complicated daily regimen. However, anyone already experiencing cardiovascular symptoms should recognize that a nutritional supplement and a medically established treatment serve fundamentally different purposes.

The Science Behind Cardio Clear 7

I examined the published evidence for the individual ingredients because understanding their biological roles is essential to judging the formula’s credibility. Importantly, research involving an ingredient does not establish that every commercial supplement containing that ingredient produces identical results.

CoQ10 has the most established cardiovascular research among the three highlighted ingredients. A 2021 Cochrane review investigated its use in people with heart failure and identified potentially favorable outcomes in certain measures, including hospitalization. Nevertheless, the reviewers emphasized study limitations, inconsistent findings, and the need for stronger research before drawing definitive clinical conclusions.

PQQ has attracted scientific interest because of its antioxidant properties and possible relationship with mitochondrial signaling. Human studies have examined outcomes including fatigue, cognition, and exercise-related measures, but the evidence remains preliminary. Its presence in a cardiovascular supplement is scientifically plausible without being equivalent to demonstrated prevention of heart disease.

Shilajit has a considerably longer history in traditional medicine than in rigorous modern clinical research. Laboratory and limited human investigations have explored its constituents and potential physiological effects, yet convincing evidence for cardiovascular benefits remains insufficient.

I could not establish published, independent randomized clinical trials demonstrating that the finished Cardio Clear 7 formulation itself improves cardiovascular outcomes. Consequently, the most defensible conclusion is that the product combines biologically interesting ingredients, with CoQ10 providing the strongest ingredient-level research foundation.

How Cardio Clear 7 Is Designed to Work

The proposed mechanism centers on mitochondrial energy metabolism and antioxidant activity. Rather than acting as a stimulant that produces an immediate surge of alertness, the formula is intended to support biological processes that already operate continuously within healthy cells.

CoQ10 participates in the mitochondrial electron transport chain, helping transfer electrons during the production of adenosine triphosphate, commonly called ATP. ATP supplies usable energy for cellular activities, including muscle contraction. CoQ10 also contributes to antioxidant defenses, although taking additional CoQ10 does not necessarily increase energy levels in everyone.

PQQ is included for its potential effects on cellular signaling and oxidative stress. Shilajit contributes a complex mixture of naturally occurring compounds, including fulvic-acid-related substances. The manufacturer suggests that these ingredients complement CoQ10, but the degree of synergy achievable in humans remains uncertain.

I would evaluate the formula as a potential addition to a cardiovascular wellness routine rather than a shortcut to stronger circulation or improved heart performance. Balanced nutrition, physical activity, sleep, appropriate medical screening, and treatment of established risk factors remain considerably more important.

A Closer Examination of the Cardio Clear 7 Ingredients

The ingredient selection is arguably the most distinctive aspect of Cardio Clear 7. Each highlighted substance contributes a different theoretical role, although its presence in the formula does not establish a guaranteed clinical benefit.

🍃 CoQ10 (Coenzyme Q10)

Coenzyme Q10 is a naturally occurring, fat-soluble compound concentrated in energy-demanding tissues, including the heart. It serves as an essential component of mitochondrial energy production and participates in antioxidant processes that help protect cellular structures against oxidative damage.

What interests me most about CoQ10 is its relatively substantial research history compared with many ingredients marketed for cardiovascular wellness. Some clinical studies have investigated benefits in specific cardiovascular conditions, particularly heart failure, although results are mixed and supplementation is not a replacement for established treatment. Its biological importance is well understood, but the extent of additional benefit in otherwise healthy adults is less certain.

🍃 PQQ Disodium Salt

Pyrroloquinoline quinone, commonly abbreviated PQQ, is a compound studied for its redox activity and potential influence on mitochondrial processes. Research has explored whether supplementation affects biochemical signaling involved in cellular energy regulation and resistance to oxidative stress.

I consider PQQ an interesting complementary ingredient, particularly because it broadens the formula beyond CoQ10 alone. However, many promising mechanistic findings come from laboratory or animal research, and human studies remain relatively small. Claims that PQQ reliably creates new mitochondria, dramatically improves circulation, or prevents cardiovascular disease would exceed what current clinical evidence establishes.

🍃 Shilajit Extract

Shilajit is a naturally occurring, mineral-containing substance traditionally used in Ayurvedic preparations. Its composition varies according to geographic origin, purification methods, and processing, making product quality especially important when evaluating supplements containing it.

Shilajit is included in this formula partly because of proposed antioxidant and energy-related properties. Nevertheless, human evidence remains limited, and its composition introduces an additional safety consideration: inadequately purified shilajit can contain undesirable contaminants, including heavy metals. I would therefore place considerable importance on independent contaminant testing and batch-specific quality documentation rather than assuming that natural origin guarantees purity.

Six Potential Benefits of Cardio Clear 7

The potential appeal of Cardio Clear 7 extends beyond its ingredient list. Its formulation is marketed around several interconnected aspects of cardiovascular and cellular wellness, although the expected benefits should be interpreted as possibilities rather than assured outcomes.

⭐ 1. Supports Normal Cellular Energy Production

CoQ10 participates directly in mitochondrial ATP production, providing a clear biological explanation for its inclusion. Cells throughout the body require ATP to perform essential functions, and energy-demanding tissues depend on efficient mitochondrial activity.

For adults interested in maintaining everyday vitality, this makes CoQ10 a relevant nutritional ingredient. Still, fatigue can result from numerous medical and lifestyle factors, and supplementation may not noticeably improve energy in people without a relevant deficiency or physiological need.

⭐ 2. Provides Nutritional Support for Heart Function

The cardiovascular system requires continuous energy to sustain normal circulation. Because heart muscle contains abundant mitochondria, nutrients involved in mitochondrial metabolism have attracted attention in cardiovascular research.

I appreciate that the formula incorporates an ingredient with actual heart-related clinical research rather than relying exclusively on traditional-use claims. However, the available research does not demonstrate that this finished supplement prevents heart attacks, treats heart failure, or reverses existing cardiac damage.

⭐ 3. Contributes to Antioxidant Protection

Normal energy production generates reactive oxygen species, which can contribute to oxidative stress when cellular protective systems become overwhelmed. CoQ10 and PQQ have antioxidant-related properties, while certain shilajit constituents have also been investigated for similar activity.

Antioxidant support is a plausible feature, particularly within the context of overall cellular health. Nevertheless, laboratory antioxidant activity is not equivalent to proven improvements in cardiovascular disease risk, and more supplementation does not necessarily produce stronger protection.

⭐ 4. May Complement Healthy Circulation Habits

Healthy circulation depends on blood vessel function, blood pressure regulation, physical fitness, and numerous metabolic processes. The manufacturer positions its formula as supporting circulatory wellness partly through cardiovascular energy metabolism.

I would treat this as an indirect nutritional support claim rather than evidence of improved blood flow. There is insufficient product-specific clinical evidence to conclude that the capsule meaningfully increases circulation, clears arterial plaque, or corrects vascular problems.

⭐ 5. Offers an Aging-Focused Wellness Approach

Mitochondrial function, metabolic regulation, and oxidative stress are frequently discussed in research on aging. The combination of CoQ10, PQQ, and shilajit reflects an attempt to address several biological pathways associated with cellular maintenance.

This positioning may appeal to adults who want to take a proactive interest in their long-term wellness. However, no convincing evidence establishes that the finished formula slows biological aging, extends lifespan, or reverses age-related cardiovascular changes.

⭐ 6. Simplifies Daily Supplementation

One of the clearest practical advantages is convenience. The formula combines multiple ingredients in one capsule, reducing the need to purchase and organize separate products for each component.

For people who already maintain a structured wellness routine, simplicity can make consistent use easier. I would nevertheless prioritize suitability, ingredient quality, and medical compatibility over convenience when deciding whether a daily supplement deserves a place in that routine.

Cardio Clear 7 Compared With Typical Heart Support Supplements

I find it useful to compare Cardio Clear 7 with the broader cardiovascular supplement category rather than assuming that a more complex formulation must always be superior.

My interpretation is that the product offers a focused combination rather than a universally superior cardiovascular formula. Someone specifically interested in CoQ10 and PQQ may appreciate its design, while another person may prefer an independently tested single-ingredient product with fewer potential interaction concerns.

My Cardio Clear 7 Rating and Editorial Assessment

After reviewing the formulation, manufacturer information, scientific literature, and practical consumer considerations, my assigned editorial rating for Cardio Clear 7 is 4.7 out of 5. This score reflects my assessment of the product’s intended design and consumer-facing features, not a measured clinical success rate.

Overall Editorial Rating: 4.7/5 — ★★★★☆

These component scores average to 4.7/5 when rounded to one decimal place. I regard the overall rating as a favorable evaluation of the formulation and purchasing framework, while recognizing that clinical effectiveness and independent manufacturing verification cannot be established from marketing materials alone.

How to Take Cardio Clear 7 Correctly

The manufacturer’s general recommendation for Cardio Clear 7 is one capsule daily with water. Its product information indicates that the capsule may be taken with or without food, although one sales-page instruction also suggests taking it before a meal. I would follow the directions printed on the purchased bottle and clarify any discrepancy with the seller or a healthcare professional.

Because CoQ10 is fat-soluble, taking a CoQ10 supplement alongside a meal containing some dietary fat may support absorption. Nevertheless, that general consideration should not override a specific product instruction or individual medical advice.

I would avoid exceeding the recommended serving, combining it with overlapping supplements without reviewing total intake, or treating the capsule as a response to unexplained fatigue or cardiovascular symptoms. The product should be stored according to its packaging instructions and kept away from children.

Pros and Cons of Cardio Clear 7

A balanced assessment requires identifying both the formulation’s practical advantages and the limitations that could influence a purchasing decision.

Overall, I see more practical strengths than disadvantages in the product’s intended design. Nevertheless, the limitations involving clinical evidence and ingredient quality deserve serious consideration, particularly because cardiovascular wellness is an important health category.

Possible Side Effects and Drawbacks

Although Cardio Clear 7 is marketed for regular adult use, its ingredients may still produce adverse reactions in certain individuals. The absence of reported problems in a small study does not guarantee safety for everyone.

CoQ10 is generally considered well tolerated, but reported side effects can include digestive discomfort, nausea, headaches, and sleep disturbances. PQQ has been evaluated in relatively small human studies, with some participants reporting mild adverse events such as stomach discomfort or headaches.

Shilajit raises additional questions related to product preparation, purification, and potential contamination. Depending on the material and individual response, adverse effects or sensitivities may occur. Inadequately purified products may also introduce exposure risks not attributable to the intended active compounds themselves.

I would discontinue use and seek medical advice if unusual symptoms develop. Chest pain, fainting, severe breathlessness, or sudden neurological symptoms require urgent medical attention rather than supplement experimentation.

Is Cardio Clear 7 Safe for Daily Use?

The safety of Cardio Clear 7 depends on ingredient quality, appropriate usage, medication compatibility, and individual health circumstances. CoQ10 has been studied extensively, while PQQ has a smaller human safety literature and shilajit requires careful attention to sourcing and purification.

The formula should not be described as universally safe or FDA-approved. Dietary supplements are not generally approved by the FDA for effectiveness before marketing, and compliance with manufacturing requirements does not independently prove that a particular formulation produces its advertised health benefits.

For otherwise healthy adults, the manufacturer’s recommended serving may be reasonable to discuss with a healthcare professional. I would especially encourage requesting independent quality documentation for shilajit and avoiding the assumption that a natural formula is automatically free from risk.

Medication Interactions and Important Precautions

Interactions are particularly important when evaluating a supplement intended for cardiovascular wellness. CoQ10 may reduce the anticoagulant effect of warfarin, potentially interfering with carefully managed treatment. People taking blood pressure medication or other cardiovascular therapies should also consult their prescribing clinician before supplementation.

CoQ10 may have additional relevance for individuals taking medications that affect blood pressure or blood glucose. Evidence concerning interactions involving PQQ and shilajit is less complete, which increases the importance of individualized professional guidance rather than proving that no interactions exist.

I would not recommend beginning this supplement independently while taking anticoagulants, managing complex heart disease, preparing for surgery, or receiving treatment for a serious medical condition. Prescribed medications should never be stopped, reduced, or replaced because of supplement marketing claims.

Who May Benefit From Cardio Clear 7 and Who Should Avoid It?

The intended audience for Cardio Clear 7 is relatively broad, but suitability depends on more than age or an interest in heart health. I would separate people seeking general nutritional support from those requiring medical evaluation.

Potentially suitable adults:

• Adults interested in cardiovascular wellness: Those looking for supplementary nutritional support alongside appropriate diet, exercise, and preventive healthcare may find the formulation relevant.
• People exploring mitochondrial support: Individuals interested in CoQ10-centered cellular energy supplements may appreciate the combination, provided they understand its evidence limitations.
• Consumers who prefer simple routines: The once-daily format may be convenient for adults who have difficulty maintaining complicated supplementation schedules.

People who should avoid it or seek medical advice first:

• Pregnant or breastfeeding individuals: Adequate evidence establishing the safety of this complete formula during pregnancy or lactation is unavailable, and the manufacturer advises against use.
• People taking prescription medications: Anticoagulants and cardiovascular treatments make professional interaction screening particularly important.
• Individuals with diagnosed heart conditions: Existing cardiac disease requires evidence-based medical care, and supplementation should only be considered within that treatment framework.
• Children and people with ingredient sensitivities: The product is intended for adults, while known allergies or previous adverse reactions warrant additional caution.

What I Didn’t Like About Cardio Clear 7

Even with a favorable overall assessment, I identified several areas where I would prefer stronger evidence or clearer consumer-facing verification before recommending Cardio Clear 7 without qualification.

• Limited clinical testing of the complete formula: I could identify research involving its individual ingredients, but not convincing published randomized trials establishing the cardiovascular effectiveness of the finished product. This limits how confidently its advertised benefits can be interpreted.
• Insufficient independent quality documentation in the material reviewed: Shilajit makes verified contaminant screening especially valuable. I would welcome readily accessible, batch-specific laboratory reports establishing purity and confirming the relevant ingredient quantities.
• Marketing language can suggest stronger outcomes than the evidence supports: References to improved circulation and youthful cellular energy may encourage consumers to expect measurable physical changes. I believe more conservative wording would better distinguish biological plausibility from proven benefits.
• Some instructions require closer attention: The manufacturer’s pages present slightly different guidance about meal timing. This is not necessarily a serious problem, but consistent directions across packaging and promotional materials would improve clarity.

These concerns do not automatically make the supplement unsuitable. They are reasons to approach its benefits realistically and investigate product-specific quality information before buying.

Cardio Clear 7: Scam or Legitimate Supplement?

Based on the information I examined, Cardio Clear 7 appears to be an identifiable commercial dietary supplement rather than an obviously fictitious product. Simple Promise provides product descriptions, ingredient information, purchasing channels, dosage guidance, and an advertised refund policy. These are positive legitimacy indicators, although they do not independently verify clinical effectiveness or guarantee every customer’s purchasing experience.

I would therefore describe the product as a legitimate marketed supplement with plausible ingredients but unproven finished-product cardiovascular benefits. Its underlying ingredient science is more substantial than that of many unsupported wellness concepts, particularly because of CoQ10. Nevertheless, consumers should be skeptical of any suggestion that the product can cure cardiovascular disease, eliminate arterial blockages, or replace prescribed treatment.

Amazon Alternatives Worth Considering

For consumers researching Cardio Clear 7, several established supplement brands offer relevant alternatives through Amazon listings. Availability can change, so I recommend confirming the current seller, ingredient label, and product authenticity before ordering.

Doctor’s Best High Absorption CoQ10 offers a more focused approach for consumers primarily interested in Coenzyme Q10. Its commonly listed 100 mg formulation allows shoppers to evaluate CoQ10 supplementation without automatically adding shilajit or PQQ. This may suit people who prefer fewer active ingredients.

Jarrow Formulas QH-absorb Ubiquinol emphasizes a reduced form of CoQ10 and lipid-based delivery. It may interest consumers comparing different CoQ10 formulations, although improved absorption characteristics do not automatically mean superior cardiovascular outcomes.

Life Extension PQQ offers a more targeted approach to PQQ supplementation, with a manufacturer-listed 20 mg capsule formulation. It may appeal to shoppers specifically researching PQQ rather than seeking a combined heart-and-energy product.

I would not assume any of these alternatives is clinically superior. The most appropriate option depends on the intended ingredient, dosage, independent quality information, medical compatibility, and individual purchasing priorities.

Cardio Clear 7’s 365-Day Money-Back Guarantee

One of the strongest purchasing features associated with Cardio Clear 7 is its advertised 365-day money-back guarantee. Simple Promise presents this policy as an opportunity for customers to request a refund if they are dissatisfied with their purchase.

The manufacturer’s promotional terms indicate that customers may contact the seller and return empty bottles when requesting a refund. Nevertheless, I would confirm the applicable return address, eligibility dates, shipping responsibilities, refund processing procedures, and treatment of subscription orders before purchasing.

Importantly, a manufacturer’s direct-purchase guarantee should not automatically be assumed to cover orders placed through independent retailers or unauthorized sellers. Customers should retain receipts, order confirmations, and correspondence until the refund eligibility period has expired.

I regard the extended policy as a meaningful consumer-protection feature, provided the applicable conditions are clearly communicated and honored. It reduces potential purchasing uncertainty but does not establish that the supplement will deliver measurable health improvements.

Frequently Asked Questions About Cardio Clear 7

1. What is Cardio Clear 7 primarily designed to support?

Q: What is the main purpose of Cardio Clear 7?

A: Cardio Clear 7 is marketed to support cardiovascular wellness, cellular energy metabolism, and antioxidant defenses. Its formulation emphasizes CoQ10, PQQ, and shilajit rather than functioning as a conventional stimulant or prescription cardiovascular medication. The proposed benefits are nutritional support claims and should not be confused with proven treatment outcomes.

2. Can Cardio Clear 7 improve everyday energy?

Q: Will taking the supplement make me feel more energetic?

A: The ingredients have biological relevance to cellular energy processes, particularly CoQ10. However, this does not guarantee noticeable improvements in physical energy, stamina, or fatigue. Persistent tiredness may have medical causes requiring investigation, and there is insufficient finished-product evidence to predict individual results reliably.

3. Does Cardio Clear 7 lower blood pressure?

Q: Can the formula help control high blood pressure?

A: Some research has explored cardiovascular effects involving CoQ10, but findings do not establish that this finished supplement reliably lowers elevated blood pressure. People with hypertension should continue prescribed treatment and recommended monitoring. Any supplement use should be discussed with their healthcare provider, especially when taking blood pressure medication.

4. How many capsules should I take daily?

Q: What is the recommended Cardio Clear 7 dosage?

A: The manufacturer’s general recommendation is one capsule daily with water. Its published information includes instructions permitting use with or without food, although another page recommends taking the capsule before a meal. The instructions on the purchased bottle and individualized medical advice should take precedence.

5. Can I combine Cardio Clear 7 with other supplements?

Q: Is it suitable to take alongside additional vitamins or CoQ10 products?

A: Combining supplements may increase total exposure to overlapping active ingredients or introduce additional interaction risks. I would compare all product labels and discuss combinations with a qualified healthcare professional, particularly when prescription medications are involved. More ingredients or higher doses do not necessarily produce better cardiovascular results.

6. Is Cardio Clear 7 FDA-approved?

Q: Has the FDA approved Cardio Clear 7 for heart health?

A: Dietary supplements generally do not undergo FDA premarket approval for effectiveness in the way prescription medications do. I found no basis for describing this product as FDA-approved to treat or prevent cardiovascular disease. Manufacturer statements concerning manufacturing standards should not be interpreted as proof of FDA approval or clinical effectiveness.

7. Can Cardio Clear 7 replace heart medication?

Q: Is the supplement an alternative to prescription cardiovascular treatment?

A: No. It should not replace medications prescribed for hypertension, coronary artery disease, heart failure, arrhythmias, or other cardiovascular conditions. Such medications have defined therapeutic purposes and established medical monitoring requirements. Supplementation should only be considered as a possible addition when a healthcare professional judges it appropriate.

8. What happens if Cardio Clear 7 does not meet expectations?

Q: Can I request a refund if I am dissatisfied?

A: The manufacturer advertises a 365-day satisfaction guarantee for eligible purchases. Before ordering, I recommend checking the current written conditions, including whether bottles must be returned, which transactions qualify, and how refund requests are processed. Keeping purchase records and contacting the seller directly through its official support channels can simplify the process.

My Final Verdict on Cardio Clear 7

After investigating the ingredients, proposed mechanisms, manufacturer information, and available research, I consider Cardio Clear 7 an interesting nutritional supplement with a coherent cellular-energy-focused formulation. CoQ10 provides its strongest scientific foundation, while PQQ and shilajit contribute additional mechanisms that deserve further investigation. Its straightforward capsule format and lengthy advertised satisfaction guarantee make it a practical product to consider for adults seeking general wellness support.

My reservations center primarily on the gap between ingredient-level science and finished-product clinical evidence. Although its formulation has biological plausibility, I would not claim that it reliably improves blood circulation, prevents cardiovascular disease, or produces significant energy improvements. Independent quality verification, especially for shilajit, and careful consideration of possible medication interactions remain important. Those limitations help explain why even my favorable 4.7/5 editorial rating should not be interpreted as a proven effectiveness score.

Ultimately, I believe this product is most appropriate for informed adults who understand the distinction between nutritional support and medical treatment. Its appeal lies in combining several complementary ingredients in a convenient daily formula rather than offering an established cardiovascular therapy. Readers who find that approach suitable can review the current product information, purchasing conditions, and satisfaction policy for Cardio Clear 7 before making their final decision.

Disclaimer

This review is intended for educational and informational purposes only and does not constitute medical advice. Dietary supplements are not substitutes for professional diagnosis, prescribed treatments, or appropriate cardiovascular care. Consult a qualified healthcare professional before taking supplements, particularly if you have an existing medical condition, take prescription medications, or are pregnant or breastfeeding.

Affiliate Disclosure: This article contains affiliate links. I may earn a commission from qualifying purchases at no additional cost to the reader. Product assessments represent editorial analysis rather than verified personal testing or guaranteed results.

References

1. National Institutes of Health — National Center for Complementary and Integrative Health. Coenzyme Q10. Explains CoQ10’s biological functions, available cardiovascular research, safety considerations, and medication interactions. This resource provides essential context for distinguishing established scientific knowledge from broader commercial supplement claims.https://www.nccih.nih.gov/health/coenzyme-q10
2. Cochrane Database of Systematic Reviews. Coenzyme Q10 for Heart Failure. A systematic review examining randomized studies of CoQ10 supplementation in heart failure, including clinical outcomes and limitations in evidence quality. It helps assess the strength and uncertainty of cardiovascular claims involving CoQ10.https://www.cochrane.org/evidence/CD008684_coenzyme-q10-heart-failure
3. European Food Safety Authority. Safety of Pyrroloquinoline Quinone Disodium Salt as a Novel Food Pursuant to Regulation (EC) No 258/97. Evaluates toxicological and human safety evidence for PQQ disodium salt under specified conditions of use. This assessment supports a careful discussion of PQQ safety without establishing cardiovascular effectiveness.https://doi.org/10.2903/j.efsa.2017.5058
4. U.S. Department of Defense — Operation Supplement Safety. Shilajit as a Dietary Supplement Ingredient. Reviews the traditional uses, limited human evidence, potential adverse reactions, and contamination concerns associated with shilajit. Particularly relevant to evaluating the purification and quality-control considerations of shilajit-containing supplements.https://www.opss.org/article/shilajit-dietary-supplement-ingredient
5. U.S. Food and Drug Administration. GRAS Notice 1118: Pyrroloquinoline Quinone Disodium Salt. Contains detailed information on PQQ safety evaluations and summaries of relevant human studies. The material provides useful evidence concerning studied exposure levels while not constituting FDA approval of Cardio Clear 7 or its cardiovascular benefit claims.https://www.fda.gov/media/173619/download