What we recommend
Updated 2026
We tested 14 products across purity, mixability, third-party testing, and value. One clear winner, two strong alternatives.
Updated 2026
Clinical validation data from 2024–2025 studies. Which wearable actually tracks your sleep most accurately — and which is right for your lifestyle.
Updated 2026
The form you choose matters enormously — from 4% to 80% absorption. A 2025 RCT clarifies the picture. Which form, what dose, when to take it.
Updated 2026
IBS and bloating don't mean giving up protein powder — they mean choosing the right one. Whey isolate vs pea protein vs hydrolyzed beef — the full breakdown.
Updated 2026
Match the compound to the specific sleep problem. Three ready-made stacks for onset insomnia, maintenance waking, and non-restorative sleep.
Updated 2026
L-Theanine, Lion's Mane, Rhodiola, Bacopa, Citicoline — ranked by evidence, dosed correctly. Three stacks for three different focus problems.
2026 Trial
A January 2026 Nature Metabolism RCT — first direct human comparison — found NMN and NR work comparably. The honest breakdown of all three precursors.
Glycinate vs L-Threonate vs Malate — which form actually works for sleep, and which brands pass third-party testing.
Whey isolate, casein, and plant-based options — ranked by amino acid profile, ingredient quality, and taste.
Chest straps vs optical monitors — accuracy compared across 6 devices, with recommendations for Zone 2 and HIIT training.
Loop bands, tube bands, and fabric bands — ranked for durability, resistance range, and value across home and travel use.
EPA/DHA ratios, oxidation testing, and purity — what the labels don't tell you, and which brands actually deliver.