Evidence, not marketing
Supplements for women, assessed honestly.
The women's supplement market runs on hope and vague language. These guides give you the dose that was actually studied, the verdict we would give a friend, and the point at which a supplement stops being the answer.
Start with your goal.
Comparison hubs with real UK products, cost per day, and the honest limits of each.
Perimenopause supplements
Perimenopause is the most heavily marketed moment in a woman's health, and most of what is sold into it does very little. This is what the evidence supports, what it does not, and what each option costs you a day.
PCOS supplements
PCOS is the condition where a supplement comes closest to earning its place, because insulin resistance sits underneath so much of it. Here is what has evidence and what does not.
PMDD supplements
PMDD is a severe, cyclical mood disorder, not bad PMS. Supplements can support it. They do not treat it, and we are not going to pretend otherwise.
Endometriosis supplements
Endometriosis takes an average of eight years to diagnose in the UK. Supplements are not going to close that gap, but a few may take the edge off while you push for proper care.
Vaginal probiotics
Almost every product in this category competes on a billions-of-CFU number that tells you nothing. The strain code, printed in small text on the back, is the only thing that matters.
Collagen for menopause
Skin collagen falls sharply in the years around menopause. A collagen drink does not reverse that, but the trials do show something. Here is the honest size of it.
Creatine for women
Creatine is one of the few supplements that reliably works, and one of the easiest to overpay for. The right product costs pennies a day.
Or start with the ingredient.
One page per ingredient: does it work, at what dose, and who should leave it alone.
- Reasonable evidence
Magnesium glycinate
Genuinely useful if you are low in magnesium or sleeping badly. Not a sedative, and not a cure for anxiety.
- Mixed evidence
Black cohosh
Worth a supervised trial if you cannot or will not take HRT. Stop at once if you develop any sign of liver trouble.
- Good evidence
Creatine
One of the few supplements that genuinely works, provided you are actually training. On its own it does very little.
- Reasonable evidence
Collagen
Real but small skin effects. If your total protein intake is low, plain protein and vitamin C matter more.
- Good evidence
Omega-3
Worth taking if you rarely eat oily fish, and genuinely important in pregnancy. Not a mood treatment on its own.
- Good evidence
Vitamin D and K2
Vitamin D is a genuine UK public health recommendation. K2 is reasonable, optional and oversold.
- Reasonable evidence
Inositol
The most defensible supplement in PCOS. Give it three months, and treat it as support alongside clinical care.
- Mixed evidence
Probiotics
Worth trying for recurrent BV alongside proper treatment. Generic high-CFU products are mostly marketing.
- Limited evidence
Red clover
Weak and inconsistent evidence. If you want to try a plant oestrogen, dietary soy has better data.
- Limited evidence
Evening primrose oil
Reasonable to try for cyclical breast tenderness. Unlikely to do anything for hot flushes.
- Good evidence
Iron
Highly effective when you are deficient. Potentially harmful when you are not. Get tested.
- Mixed evidence
Vitamin B6
A reasonable, cheap thing to try for PMS at 50-100mg. Never go above the labelled limit.
- Mixed evidence
Ashwagandha
The stress data is better than most adaptogens, but the cautions are real. Not a supplement to take casually.
- Good evidence
Vitamin C
Genuinely important nutrient, rarely deficient in the UK. Useful with iron; wasted at megadoses.
- Good evidence
Protein
The highest-value thing in this whole library, and the least exciting. Food first, powder for convenience.
- Limited evidence
Sea moss
No meaningful human evidence, and a genuine thyroid risk from unpredictable iodine. We do not recommend it.
Common questions.
Which supplements are actually worth taking for women?
Vitamin D through the UK winter is advised for everyone by the NHS. Beyond that it depends on the question: magnesium for sleep and cramps, creatine and protein alongside strength training, inositol for PCOS, and iron only when a blood test shows you need it.
How do you decide what to recommend?
We start from the published evidence and the dose that was actually studied, then look at what UK products deliver at that dose and what they cost per day. Where the evidence is weak we say so rather than filling the gap with marketing language.
Do you get paid for these recommendations?
We do not accept payment for inclusion or placement. Some product links may earn a commission, and that is stated on the product page itself.
Can supplements replace seeing a clinician?
No. Food supplements are not medicines. If symptoms are affecting your sleep, work or relationships, an assessment will get you further than anything on a shelf.
More across the site
Clinician-designed ASRS-based screening, nothing stored.
Why your dose stops holding before your period, and what to track.
adhd assessment jobs uk
menopause clinician jobs uk
pcos symptoms
ADHD in women more often presents as inattention, executive dysfunction, emotional intensity and rejection sensitivity t
Perimenopause is the years of fluctuating hormones before periods stop, typically starting in the early to mid forties a
Route in, regulator, timeline and cost.
Food supplements are not medicines and are not intended to diagnose, treat or cure any condition. They should not replace a varied diet or prescribed treatment. If you are pregnant, breastfeeding, taking medication or managing a diagnosed condition, check with a pharmacist or clinician before starting anything on this page. We do not accept payment for inclusion or placement. Where a link earns us a commission we say so on the product page. Last reviewed 27 August 2026.