How we scored it
Gallotannin extracted from nutgalls/oak bark per cosing_description; whole plant-derived polyphenol extract. 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.
Where it comes from
Extracted from nutgalls, oak bark and other tannin-rich plant tissues using water or aqueous-organic solvents. No petrochemical synthesis route is used.
In plain English
An astringent polyphenol extracted from oak bark, nutgalls and other plant tissues, also used in trace amounts as a fragrance ingredient. It is obtained directly from these plant sources by extraction.
CosIng definition: Tannins. Gallic acid derivatives found in nutgalls, bark and other plant parts, especially oak bark
Structure
[2,3-dihydroxy-5-[[(2R,3R,4S,5R,6S)-3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxybenzoyl]oxy]oxan-2-yl]methoxycarbonyl]phenyl] 3,4,5-trihydroxybenzoate
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2Tannic Acid. PubChem CID 16129778. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3TANNIC ACID. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4TANNIC ACID. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TANNIC%20ACID