Comparison hub / cited research / honest verdicts

Every supplement comparison, side-by-side.

Cited research, third-party verification, and editorial buying guides for every supplement we've reviewed. Filter by niche, sort the way you read.

2

Live comparisons

16

Products covered

PubMed

Primary sources

Sort

Lion's Mane supplements hero illustration

lion's mane focus

Lion's Mane supplements

Top pick Real Mushrooms Lion's Mane A+ (96)

68–96 score range

2026-05-01 verified

Read comparison →

Ashwagandha supplements hero illustration

ashwagandha stress and mood

Ashwagandha supplements

Top pick Nutricost Ashwagandha (KSM-66) A+ (95)

73–95 score range

2026-05-08 verified

Read comparison →

Methodology

Each product is scored on potency (40%), purity (25%), value (20%), and transparency (15%). Sources combine PubMed-indexed trials and publicly available manufacturer Certificates of Analysis. See the full methodology article and the NootroScore reference.

What's missing?

We're slowly expanding the comparison catalog. Categories on deck: Magnesium, Creatine, Rhodiola, L-Theanine, Bacopa, Omega-3. Email hello@nootroworld.com if there's a category you want next.