PLDEFRESITJęzyk: polski
INCI name

TROMETHAMINE

Tromethamine (Tris)

BufferingFragrancereviewed

An amine used to adjust and buffer pH.

What it is

Tromethamine (2-amino-2-(hydroxymethyl)-1,3-propanediol, also called Tris) is an organic amine. CosIng lists it as buffering and fragrance. In the EU it falls under Annex III (substances subject to restrictions), which includes a condition on secondary amine content.

Where it is used

Used to neutralise acidic thickeners such as carbomers and to adjust pH in gels, creams, serums and makeup.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

See the EU regulation section for the applicable conditions.

Functions

Buffering
Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
Fragrance
Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.

EU regulation

EU · Annex III, entry 61Monoalkylamines, monoalkanolamines and their salts
Maximum concentration
Maximum secondary amine content: 0.5%
As of
3 November 2026 · (EC) 2009/1223

Products with this ingredient (103)

Check a full ingredient list