Is This Supplement Legit

Knowledge base

Methodology, ingredient intelligence, and editorial lists that sit behind the product decision engine. Use the home page to search SKUs or run a head-to-head compare first.

Full methodology · All ingredient hubs · Product catalog

How we decide

A fixed framework, not a shopping blog

Every hub and list is scored with the same editorial model so you can compare on one axis before you spend.

  • Evidence

    Human outcomes weigh more than mechanistic stories or storefront claims.

  • Dosage

    We flag when label doses drift from what trials actually used.

  • Formula quality

    Transparency penalties for blends that hide real amounts.

  • Safety

    Interactions, vulnerable groups, and tolerability stay visible.

  • Value

    Hype gap shows when marketing outruns the published record.

Read full methodologyDisclaimer

Fresh

Recently updated verdicts

Hubs we revised as trials, safety notes, or editorial read changed.

Ingredient intelligence

Strongest overall scores

The ingredient layer you already trust: one compound, one hub, the same scores on every page.

Creatine

90

One of the most studied ergogenic aids; strongly supports high-intensity performance and lean mass when training is consistent.

Strong supportHype 28

Vitamin B12

88

Essential for nerve function and red blood cells; supplementation is clearly indicated for deficiency and certain diets.

Strong supportHype 48

Whey protein

84

A complete protein source convenient for hitting protein targets; evidence is mostly about adequate protein intake, not magic anabolism.

Strong supportHype 42

Beta-alanine

83

Buffers hydrogen ions during high-intensity efforts; best evidence for short repeated sprints and 1-4 minute efforts.

Strong supportHype 38

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Categorias

Agrupamentos editoriais. Um ingrediente pode estar em mais de uma.

Fitness & performance52Sleep & stress32Vitamins & minerals83Gut health32Herbs & adaptogens95Metabolic & longevity114Amino acids30Weight loss (high hype)17

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Temas com evidência forte

Ordenados pela pontuação de evidência na nossa rúbrica, onde a prova costuma ser mais sólida.

Creatine

90

One of the most studied ergogenic aids; strongly supports high-intensity performance and lean mass when training is consistent.

Strong supportEv 93Hype 28

Vitamin B12

88

Essential for nerve function and red blood cells; supplementation is clearly indicated for deficiency and certain diets.

Strong supportEv 90Hype 48

Iron

72

Critical for iron-deficiency anemia treatment; harmful if taken unnecessarily due to oxidative stress and overload risk.

CautionEv 88Hype 45

Caffeine

81

A well-studied stimulant that improves alertness and exercise performance; sensitivity and sleep impacts vary widely.

Strong supportEv 86Hype 40

Whey protein

84

A complete protein source convenient for hitting protein targets; evidence is mostly about adequate protein intake, not magic anabolism.

Strong supportEv 86Hype 42

Beta-alanine

83

Buffers hydrogen ions during high-intensity efforts; best evidence for short repeated sprints and 1-4 minute efforts.

Strong supportEv 85Hype 38

Controverso

Mais debatidos

Rótulos de veredito mistos ou fracos: dados humanos escassos ou conflitantes.

Dong quai

50

Traditional women's herb; estrogen-like concerns; human trial quality varies.

Mixed evidenceHype 58

Pregnenolone

50

Hormone precursor marketed for cognition and energy; human trials are small and context-specific; clinician oversight advised.

Mixed evidenceHype 66

Aloe vera (inner leaf)

50

Inner leaf gel is different from whole-leaf latex; latex anthraquinones were laxative and carry safety baggage.

Mixed evidenceHype 50

Borage oil

50

High-GLA oil; liver concern at higher doses; evidence for most claims is thin.

Mixed evidenceHype 58

5-HTP

52

Serotonin precursor marketed for mood and sleep; serotonin syndrome risk appears when combined with serotonergic drugs.

Mixed evidenceHype 62

Black cohosh

52

North American herb marketed for menopause symptoms; trials are mixed and liver injury case reports exist with some products.

Mixed evidenceHype 54

Caveat emptor

Frequentemente superestimados

Grande distância de hype: afirmações altas versus o que os ensaios sustentam.

Raspberry ketones

28

Marketed for fat loss with almost no meaningful human clinical program behind the claims.

Insufficient evidenceHype 95

Turkesterone

34

A trendy ecdysteroid marketed like an anabolic shortcut; human muscle-building evidence is thin and product authenticity is a major issue.

Insufficient evidenceHype 92

Deer antler velvet

30

Marketed for strength and IGF-1 signaling; human performance evidence is weak and contamination/claims issues are common.

Insufficient evidenceHype 90

Tribulus terrestris

38

Ayurvedic herb sold for testosterone and libido; human trials usually fail to show reliable T increases in young trained men.

Weak evidenceHype 88

Garcinia cambogia

38

Popularized for appetite and fat loss; large trials and reviews generally show small, inconsistent effects.

Weak evidenceHype 88

Synephrine (bitter orange)

40

Protoalkaloid in bitter orange extracts added to fat burners; cardiovascular and stimulant stack risks matter more than fat loss proof.

CautionHype 85

Alta intenção

Perguntas comuns

Páginas curtas que ligam ao hub completo do ingrediente.

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