TARTARIC ACID ●
TL;DR. This ingredient is used mainly as a pH adjuster and acidulant, helping formulas reach the right acidity for stability, preservation support, and skin feel. In some products, it can also contribute mild exfoliating activity as part of an acid blend.
What does TARTARIC ACID do in a cosmetic formula?
This ingredient is used mainly as a pH adjuster and acidulant, helping formulas reach the right acidity for stability, preservation support, and skin feel. In some products, it can also contribute mild exfoliating activity as part of an acid blend.
Is TARTARIC ACID clean?
From a clean-beauty perspective, this ingredient is generally well accepted and not a common restricted-list concern. Its main watchpoint is concentration and finished-product pH, since acidic formulas can sting or irritate sensitive skin.
Is TARTARIC ACID sustainable?
This material can be sourced from plant-derived fermentation or wine-industry byproducts, and it is readily biodegradable. Its sustainability profile is usually favorable when made from renewable feedstocks and processed with efficient water and energy use.
Is TARTARIC ACID COSMOS-approved?
It is generally permitted in COSMOS-natural and COSMOS-organic formulations when sourced and processed through compliant routes. It fits Green Chemistry principles well when renewable feedstocks, simple recovery steps, and biodegradable end-of-life behavior are used.
How does TARTARIC ACID work chemically?
The molecule is a small dicarboxylic alpha hydroxy acid with two stereocenters, strong water solubility, and acid dissociation values around pKa 3.0 and 4.3. It is commonly used below 1% for pH adjustment, while exfoliating acid systems may use higher levels and must be formulated around final pH, buffering, and skin-tolerance targets.
Last updated 2026-05-13