NootroWorld

Supplement research,
without the noise.

Evidence-based supplement reviews with PubMed-cited sources. No paid rankings, no affiliate-driven verdicts - just the research, summarized and linked.

15
Supplements reviewed
58
Primary citations
0
Paid rankings
PubMed
Source database

This week's evidence desk

Highest-scoring nootropics, May 2026

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01 Editor's pick
Capsules
Real Mushrooms Real Mushrooms Lion's Mane

Real Mushrooms Lion's Mane

Real Mushrooms / Fruiting body 8:1

The cleanest, most potent Lion's Mane we tested. 100% fruiting body, 25% beta-glucans verified, and the best label-accuracy score in our panel.

96/100 A+
Full review
02 Best for beginners
Capsules
Host Defense Host Defense Lion's Mane

Host Defense Lion's Mane

Host Defense / Mycelium + fruit

A trusted name founded by mycologist Paul Stamets. The mycelium-plus-fruit blend is gentler on the gut but slightly less potent per dollar than Real Mushrooms.

93/100 A+
Full review
03 Best value
Capsules
Om Mushroom Om Mushroom Lion's Mane

Om Mushroom Lion's Mane

Om Mushroom / Whole food

Lowest cost per serving in our panel and 90 servings per bottle. Whole-food rather than concentrated extract, so the daily dose is larger.

89/100 A
Full review