Every Supplement We’ve Tested, Honestly Ranked
In-depth, evidence-graded reviews across hormone health, gut health, sleep, stress and nutrition. Every product is scored on four things and four things only — how strong the human evidence is, whether the dose matches the one that was actually studied, third-party purity testing, and what it costs you per day.
Myo-Inositol + D-Chiro 40:1
The most-studied supplement in PCOS by a wide margin. Get the 40:1 ratio the trials actually used: 4,000 mg myo with 100 mg D-chiro. Anything else is improvising.
- Powder, one scoop daily
- From $39 per bottle
- 180-day money-back guarantee
Botanicals, mushrooms and enzymes from a company that publishes its unflattering reviews and skips the countdown timers. Gentle and well made — though the doses sit below the research.
- One capsule twice daily
- From $49.95 per bottle
- 90-day money-back guarantee
- Featured partner — we earn a commission
Yu Sleep
Melatonin at 0.9 mg — the physiological dose almost every competitor overshoots — alongside L-theanine, magnesium glycinate and tart cherry. Well formulated. Check the 5-HTP interaction before ordering.
- Liquid, two droppers before bed
- From $49 per bottle
- 60-day money-back guarantee
- Contains 5-HTP — check antidepressant interactions
- Featured partner — we earn a commission
Ashwagandha (KSM-66), 600 mg
The exact extract used in most human trials showing reduced perceived stress and cortisol. Not one to combine with thyroid medication unsupervised.
- Powder, one scoop daily
- From $39 per bottle
- 180-day money-back guarantee
Joint Genesis
A rare joint formula where the doses match the trials. Built on Mobilee at 80 mg, with pine bark, ginger and Boswellia behind it. Premium price, three-month timeline, and a real guarantee.
- One capsule daily
- From $49 per bottle
- 180-day empty-bottle guarantee
- Featured partner — we earn a commission
Also scored
Twelve more supplements we have assessed against the same four criteria. These do not have standalone reviews on every entry — each links to the article or review where we set out the evidence behind the score.
Prices are indicative averages and change often — always check current pricing at the retailer. Noura Theory earns affiliate commissions on some links at no extra cost to you. Nothing on this page is medical advice; supplements interact with medications and conditions, so please speak to a clinician before starting anything new.
No Brand Has Ever Paid to Be Here
Rankings get finalised before a single affiliate programme is applied. If something we rate highly pays us nothing, it still rates highly. If a generously-paying product misses the dose or purity bar, it does not make the page at all — and anything we cannot recommend stays right here with a low score instead of quietly vanishing.