Verdict library · 19 products graded

The shelf, already graded.

Browse it like a store, except nothing here is for sale. Every product carries an earned Keep, Replace, or Drop verdict, an evidence tier, and a cost per effective dose. Winners are picked by stated rules, not placement fees.

Sample data · demo
Verified picks · earned, not sponsored
Foundational
Verified pick
Vitamin D3
KeepTier A€0.03/day

Cheap, well-studied correction for a genuinely common deficiency. Worth testing your level first.

Sample entry · full verdict page coming
Sport & performance
Verified pick
Creatine Monohydrate
KeepTier A€0.09/day

The most-replicated ergogenic aid there is, and nearly free. It is the reference every other creatine is judged against.

Read the full verdict
Sport & performance
Verified pick
Whey protein isolate
KeepTier A€0.75/day

A convenient, complete protein with a deep evidence base. Food first, this second, but it earns its place.

Sample entry · full verdict page coming
Sport & performance
Verified pick
Beta-alanine
KeepTier B€0.18/day

Real, modest gains in high-intensity efforts of 1–4 minutes; the harmless tingling is not the effect.

Sample entry · full verdict page coming

A verified pick means: earned a Keep at evidence tier A or B, with third-party testing on file. No product can pay its way onto this strip.

Category winners · with the rule that picked them
Foundational
Category winner
Vitamin D3
KeepTier A€0.03/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Sample entry · full verdict page coming
Sport & performance
Category winner
Creatine Monohydrate
KeepTier A€0.09/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Avoid · Testosterone booster blend
Read the full verdict
Cognitive
Category winner
Caffeine + L-theanine
KeepTier B€0.12/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Sample entry · full verdict page coming
Sleep & stress
Category winner
Melatonin
KeepTier B€0.05/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Sample entry · full verdict page coming
Metabolic
Category winner
Berberine
KeepTier B€0.40/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Safest pick · Turmeric / Curcumin
Sample entry · full verdict page coming
Gut & digestion
Category winner
Probiotic
ReplaceTier C€0.65/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Avoid · Detox greens powder
Sample entry · full verdict page coming
Longevity
Category winner
Nicotinamide Riboside
ReplaceTier D€1.10/day

Highest overall merit: verdict, then evidence tier, then trust and value.

Sample entry · full verdict page coming
Verdict
Evidence tier
Use-case
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19 of 19 products
Vitamin D3 · 2000 IU
Keep · Tier A · €0.03/dose

Cheap, well-studied correction for a genuinely common deficiency. Worth testing your level first.

Creatine Monohydrate · 5g
Keep · Tier A · €0.09/dose
Whey protein isolate · 25g
Keep · Tier A · €0.75/dose

A convenient, complete protein with a deep evidence base. Food first, this second, but it earns its place.

Beta-alanine · 3.2g
Keep · Tier B · €0.18/dose

Real, modest gains in high-intensity efforts of 1–4 minutes; the harmless tingling is not the effect.

Caffeine + L-theanine · 100/200mg
Keep · Tier B · €0.12/dose

The one nootropic 'stack' with real trials: theanine smooths caffeine's edge and sharpens attention.

Melatonin · 0.5mg
Keep · Tier B · €0.05/dose

For sleep timing, low and early beats the 5–10 mg megadoses most bottles sell; more is not better here.

Omega-3 · EPA/DHA 1g
Keep · Tier B · €0.28/dose

Solid for triglycerides and a reasonable general pick; demand a rancidity (TOTOX) and heavy-metal CoA.

Magnesium Glycinate · 200mg
Keep · Tier B · €0.14/dose

A well-absorbed form that helps if you're low; many products under-dose elemental magnesium, so check the number.

Berberine · 500mg ×2
Keep · Tier B · €0.40/dose

Genuine glucose-lowering evidence, but it's a potent CYP3A4 inhibitor: a drug-interaction item, not a casual buy.

Turmeric / Curcumin · 500mg
Replace · Tier C · €0.25/dose

Plain curcumin is barely absorbed; without a bioavailability system (piperine, phytosome) you're paying for nothing.

Ashwagandha · KSM-66 300mg
Replace · Tier C · €0.30/dose

Short stress trials look okay at 300–600 mg of a named extract, but liver-injury reports mean quality matters.

Collagen peptides · 10g
Replace · Tier C · €0.55/dose

Preliminary joint/skin signals, but it's an expensive incomplete protein; whey does more for less.

Lion's Mane · 1g extract
Replace · Tier C · €0.60/dose

Intriguing small human trials, but extract quality is a lottery; verify fruiting body vs. mycelium-on-grain.

Probiotic · multi-strain
Replace · Tier C · €0.65/dose

Benefits are strain- and indication-specific; a generic 'multi-strain' rarely matches any studied product.

Nicotinamide Riboside · 300mg
Replace · Tier D · €1.10/dose

NMN's cousin with the same problem: it raises NAD+ without a demonstrated clinical or longevity outcome.

NMN 500 · nightly
Replace · Tier D · €1.67/dose
ZMA · nightly
Replace · Tier D · €0.35/dose

The testosterone/performance story didn't replicate; if you're low on magnesium, buy magnesium.

Testosterone booster blend
Drop · Tier F · €1.20/dose

No blend has reliably raised testosterone or performance in healthy men; hidden doses, real risk.

Detox greens powder
Drop · Tier F · €1.33/dose
Avoid these patterns

Proprietary blends. Hidden doses are assumed underdosed. The testosterone-booster blend above hides everything behind a label you can't check.

Surrogate-endpoint longevity. Raising a biomarker (NAD+) is not a clinical outcome. NMN and NR sell the number, not the benefit.

'Detox' claims. There is nothing to detox. The greens powder above pairs the claim with hidden doses and a real green-tea-extract liver signal.

Costs and grades on this page are illustrative sample data for the demo. Three products link to a full written verdict; live analyses open in the report view after you paste a product on the Analyze page.