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Evidence Library

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Ratings describe support for the exact claim, not whether an ingredient is good or bad. Investigations with mixed claim-specific ratings remain in All ratings until an overall rating is designated.

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Browse published investigations below.

Evidence vs Hype electrolytes and hydration investigation, showing electrolyte powder, a glass of water, a sweaty forearm and conceptual water inset.

Do You Need Electrolytes Every Day? Hydration Evidence

Electrolytes are essential. An electrolyte drink is not automatically essential. The evidence depends on what you have lost and what outcome you want to improve.

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Evidence vs Hype sleepmaxxing and mouth-taping investigation, showing a sleeping person, tape roll, tracker and conceptual airway inset.

Sleepmaxxing and Mouth Taping: What Improves Sleep?

Some sleepmaxxing habits are sensible. Others turn an appealing mechanism into a promise the studies have not established. Mouth taping needs particular care.

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Evidence vs Hype GLP-1 microdosing investigation, with neutral capped injection pen, abdomen and magnified pen window.

GLP-1 Microdosing: Benefits, Side Effects and Evidence

Low doses can have biological effects. But do they preserve the benefits of studied GLP-1 treatment while avoiding its risks? We examine the latest evidence.

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Evidence vs Hype parasite-cleanses investigation, with herbal supplement, abdomen and conceptual magnified intestinal folds.

Do Parasite Cleanses Work? Evidence, Testing and Risks

Parasites are real, and some plants have antiparasitic activity. Does that establish that commercial cleanses treat hidden infections or explain common symptoms?

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Evidence vs Hype: NAD+ and NMN supplements and ageing, with capsules, a mature face and magnified mitochondrion illustration.

Can NAD+ and NMN Supplements Slow or Reverse Ageing?

NMN can raise blood NAD, but does that mean slower ageing? Explore human trials, the latest 2026 findings and the gap between biomarkers and health.

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Evidence vs Hype: protein and muscle investigation, with protein powder, an athletic shoulder and magnified muscle fibres.

Proteinmaxxing: Does More Protein Build More Muscle?

More protein can support muscle gains, but how much is enough? We examine total intake, supplements, training and the limits of proteinmaxxing.

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Evidence vs Hype: seed oils and inflammation, with oil, seeds and a magnified lipid-droplet illustration.

Do Seed Oils Cause Inflammation? What Human Evidence Shows

Do seed oils cause inflammation? Human trials, cardiovascular evidence and frying chemistry reveal why the oil, cooking method and replacement food matter.

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Evidence vs Hype: cortisol face investigation, with a neutral face, laboratory glassware and magnified skin illustration.

Does Stress Cause Cortisol Face? Puffiness vs Cushing’s

Can stress make your face puffy? We separate normal cortisol responses, Cushing’s syndrome and other explanations for facial changes.

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Evidence vs Hype: BPC-157 and injury recovery, with a research vial, knee and magnified tendon illustration.

Does BPC-157 Heal Injuries? Human Evidence and Safety

BPC-157 has promising animal research. Do human studies show faster injury recovery, and what do the latest safety findings mean?

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Does Creatine Cause Hair Loss? What the Evidence Actually Shows

Does Creatine Cause Hair Loss? What the Evidence Actually Shows

Creatine is often blamed for hair loss because of one small 2009 study involving DHT. But researchers have now directly tested creatine and hair health. Here's what the evidence shows.

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