The zinc salt of aspartic acid, used as a skin-conditioning ingredient and regulated in Annex III.
What it is
Zinc aspartate is the zinc salt of L-aspartic acid, an amino acid. CosIng lists it as a skin-conditioning ingredient. In the EU it is covered by an entry in Annex III (substances subject to restrictions).
Where it is used
Appears on the ingredient lists of a small number of 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, which are expressed as zinc and differ between toothpastes, mouthwashes and other products.
Functions
- Skin conditioning
- Maintaining the skin in good condition.
EU regulation
EU · Annex III, entry 24Water-soluble zinc salts with the exception of zinc 4- hydroxy-benzene sulphonate (entry 25 of Annex III)
- Product type
- (a) Toothpaste intended for users above 1 year of age (b) Toothpaste intended for children between 6 months and 1 year of age (c) Mouthwash intended for users above 6 years of age (d) Other products
- Maximum concentration
- (a) 1 % (as zinc) (b) 0,72 % (as zinc) (c) 0,1 % (as zinc) (d) 1 % (as zinc)
- As of
- 3 November 2026 · (EU) 2026/909