Tromethamine
Balances the pH.
What it is
An alkaline organic compound made in a lab.
Adjusts and holds the product's pH, its level of acidity, at the intended level.
What it does in a formula
Balances the pHOfficial EU function: Buffering
Adds scentOfficial EU function: Fragrance
What official sources say
Restricted in certain uses · Cosmetics, EU
Allowed in EU cosmetics only within set limits and conditions (Annex III, entry 61).
Regulation (EC) No 1223/2009, Annex III: list of substances which cosmetic products must not contain except subject to the restrictions laid down (CosIng), retrieved 2026-10-09