Put any supplement next to us.

We read the supplement facts of each product as published by the brand or by a major retailer, and record the amount of each ingredient per daily serving in milligrams. Vitamins printed in micrograms are converted to milligrams so every product is on one ruler. Only individually disclosed amounts are totalled. A proprietary blend is shown as a blend weight and is never split by guess, and a whole-herb equivalent figure is not counted as active weight. Where a label prints a range, we record the lower figure.

Where the prices come from

Prices are the listed one-time price on the date shown, for the smallest standard pack, in the seller's currency, before delivery. We do not convert currencies on this page, so a product listed in dollars shows a dollar figure. Subscription prices, member prices and sale prices are not used for the per-day figure, because they are not the same basis from one brand to the next. Prices are re-read on a regular cycle and hidden when they are more than 60 days old.

Read confidence

"From the pack or a published label" means we read the brand's own supplement facts panel. "Retailer listing" means the amounts came from a major retailer's product page rather than the pack, so a line may be missing or rounded. Products we could read only at low confidence are left out until we can read the pack.

Products not shown, and why

• SugarBearHair Hair Vitamins / SugarbearPRO: label read at low confidence, so not shown until re-read from the pack.
• HAIRtamin Gummy Stars: label read at low confidence, so not shown until re-read from the pack.
• Hims & Hers Biotin Builder Gummies (food supplement, wild cherry): sold alongside services outside the scope of a food supplement store, so not compared here.
• UKLASH UKHAIR Hair Vitamins: label read at low confidence, so not shown until re-read from the pack.
• Nutriburst Hair, Skin and Nails gummies: label read at low confidence, so not shown until re-read from the pack.
• Horbaach Hair, Skin and Nails Vitamins 5000mcg Biotin gummies: label read at low confidence, so not shown until re-read from the pack.
• EVO Nutrition Biotin Max with Zinc and Selenium 12,000mcg: label read at low confidence, so not shown until re-read from the pack.
• Advanced Trichology: printed name not shown on this store.
• Natrol Shen Min: printed name not shown on this store.
• DrFormulas: printed name not shown on this store.

A further 28 brands people ask about are not in the index because we have not been able to read a published label with amounts for them. Amounts printed only as an image are transcribed before they appear here.

Where the amounts come from on the Dense label

The two largest botanical lines on the Daily Densify label are pumpkin seed extract at 400 mg and saw palmetto fruit extract at 320 mg. The published trials of those ingredients, with their designs, numbers and limits, are set out study by study in Pumpkin seed oil and hair: what the studies show and Saw palmetto for hair: what the studies show. They are studies of the ingredients, not of Daily Densify. What the Daily Densify label prints for those two lines, and what a standalone 400 mg pumpkin seed capsule costs against it, is on the 400 mg pumpkin seed page. How we decide what a Dense label may say is on the science page.

What this table cannot tell you

A label tells you what is in a product and how much. It does not tell you how well the product works, whether an ingredient suits you, or whether a dose is right for you. The amount of an ingredient is not evidence of an effect. If you are pregnant, breastfeeding, taking medication or under medical care, speak to a pharmacist or your GP before starting any supplement.

Re-read cycle, owner and corrections

Every label in this index is re-read at least once a quarter and prices more often. The owner of that cycle is Jamie (Dense operations). If you are a brand and a figure on this page does not match your current label, write to hello@dense.global with a photograph of the pack; we correct or remove the row within two working days and date the correction on this page.

Sorted A to Z by brand. "Disclosed actives" counts only ingredients whose amount is printed; a proprietary blend is shown as its blend weight and never split by guess. Price per day is the listed one-time price for the smallest standard pack divided by the days it lasts at the printed serving, in the seller's own currency, before delivery. Where a row says "not priced", we have not read a current price for that product.