PLDEFRESITJęzyk: polski
INCI name

AMMONIA

Ammonia

BufferingFragrancereviewed

An alkaline compound used to adjust pH, regulated in Annex III.

What it is

Ammonia (NH3) is a simple nitrogen compound used in cosmetics in aqueous solution. CosIng lists it as a buffering and fragrance ingredient. In the EU it is covered by an entry in Annex III (substances subject to restrictions).

Where it is used

Found mainly in permanent hair colours and hair bleaching products.

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 limits. According to the Annex III entry, a warning that the product contains ammonia is required on the label above a certain content.

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 4Ammonia
Maximum concentration
6% (as NH3)
Conditions and warnings
Above 2%: Contains ammonia
As of
3 November 2026 · (EC) 2009/1223

Products with this ingredient (7)

Check a full ingredient list