About
ServingPrice is a public data site that compares iHerb supplement prices per milligram of active ingredient.
What this site does
We collect publicly listed price and label data for supplements sold on iHerb and compute the price per mg of a given ingredient, so listings with different serving sizes and pack counts can be compared on equal terms. See How prices are calculated for the exact formula.
Data source and update frequency
Prices and product listings are collected from iHerb’s public product pages, usually once a day. A price shown here reflects the value at the time of the most recent collection, not necessarily the current live price.
What this site does not do
This site does not evaluate, rate, or recommend supplements based on effectiveness, and nothing here is medical or health advice. We only compare publicly listed price and label data. For questions about whether a supplement is right for you, consult a qualified healthcare professional.
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Page last edited: 2026-10-02