There is no health claim in Great Britain that describes what this product is for. Nothing about vaginal flora, the microbiome, intimate health or urinary health has passed assessment. Not one.

So the three ingredients someone actually buys this for carry nothing, and the four they have never heard of carry everything. The live cultures, the prebiotic and the cranberry have no assessed claim between them. Riboflavin, niacin, biotin and vitamin D3 have twenty-nine.

That is not a loophole we are pleased about and it is not a secret. It means this product can tell you what is in it and at what dose, and it cannot tell you what that does. Which is why the entire case for it rests on the first of those, and why the page below is about disclosure rather than benefit.

Every culture named, every count printed

We reviewed nine of the best-selling women’s live-culture products on sale in the UK and the US. One published a dose for each individual culture, and it is not sold here. Three published neither a dose nor a designation for any of them.

This matters more than the total. A large headline count spread thinly can leave individual cultures below anything that has been tested, and without a breakdown there is no way to tell. A trademarked blend name makes it worse: the total is published, the split is not.

Every culture clears the researched dose

Trials that found an effect generally used between one and ten billion of a strain per day. The smallest inclusion in this formula is two billion. That is a checkable statement about our own label, and it is a stronger argument than the 50 billion total, because there is no convincing evidence that a higher total is better — the largest trial in the field found one billion and ten billion performing about the same.

Two Bifidobacterium, where most carry none

They are here for the gut, not for vaginal outcomes, and the page says so: no Bifidobacterium has published human evidence for vaginal outcomes by any route.

All eight cultures grade C. Human trials exist on every species; none of that evidence was produced on the strains we use. That is the ordinary position in this industry rather than an unusual one — trials cost six figures and get funded only where a company can own the result — but it is a C, and we publish it as one.

The prebiotic is below its researched dose. XOS trials used intakes closer to 1.4g a day; we carry 250mg. It is included as the fibre beside the cultures, at the amount two capsules allow, and we make no claim for it on its own.

The vitamin D is one part of a daily total. From late March to September most people make the vitamin D they need from sunlight. In autumn and winter the NHS suggests adults consider 10 micrograms a day; ours provides 5 micrograms, 100% of the reference intake, and the rest can come from food or a separate vitamin D supplement.

And nobody has tested this formulation. Evidence about an ingredient is not evidence about a product.

How this compares with our other product

Belle Balance grades better than Femme Flora on our own scale, and it is worth saying so here rather than leaving it to be noticed. Belle Balance has an A-grade ingredient at half its weight. Every culture in Femme Flora is a C. The two products are not doing the same job, and a grade counts published trials rather than deciding which product is right for anyone — but if you are comparing them on evidence alone, that is the honest ordering.

This page is about what the science says. What is in a particular batch, such as a certificate of analysis, is a different kind of document and lives at evori.uk/verify. A vegan declaration from the manufacturer is held on file. The vitamin D3 is one example: our manufacturer has confirmed it is lichen-sourced in a written declaration (received 4 November 2026) rather than derived from lanolin, as the vitamin D3 page explains.

• We do not claim Femme Flora supports vaginal health, intimate health, the vaginal microbiome or urinary health. No assessed claim exists for any of it.
• We do not claim this product colonises, restores, repopulates or rebalances anything.
• We do not claim it treats, prevents or cures any condition. Naming a condition a product is for is a medicinal claim.
• We do not claim the twenty-nine vitamin claims describe what this product does. They describe what four nutrients contribute to, assessed on the nutrients and not on our formulation.
• We do not claim a higher total culture count is better than a lower one, and our own page sets out why it probably is not.

What we claim is the composition: eight named cultures at published counts, a prebiotic, a cranberry extract and four vitamins, every figure traceable to a specification.