A chelating agent.
What it is
Etidronic acid is a phosphonic acid that binds metal ions, protecting formulas from discolouration and supporting stability.
Where it is used
Found in soaps, shampoos, cleansers and hair-care 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 current conditions of use.
Functions
- Chelating
- Forming complexes with metal ions which could affect the stability and/or appearance of cosmetics.
EU regulation
EU · Annex III, entry 53(1-Hydroxyethylidene)diphosphonic acid and its salts
- Product type
- (a) Hair product (b) Soap
- Maximum concentration
- (a) 1.5% (as etidronic acid) (b) 0.2% (as etidronic acid)
- As of
- 3 November 2026 · (EC) 2009/1223
Products with this ingredient (111)
- Refil Sabonete Líquido Carinho e Proteção · Dove
- Refil Sabonete Líquido Baby Dove Hidratação Enriquecida · Dove
- Sabonete Líquido Baby Dove Carinho e Proteção · Dove
- Jabón Pastilla Individual Exfoliante · Dove
- Barra de belleza Pepino Hidratación Fresca · Dove
- Jabón Pastilla Individual Mandarina Hidratación Fresca · Dove
- Baby Jabón en barra Hidratación Enriquecida · Dove
- Baby Shampoo Hidratación Enriquecida · Dove
- Barra de belleza Karité y Vainilla · Dove
- Men+Care Jabón Pastilla · Dove
- Jabón Pastilla Individual Original · Dove
- Dove Reviving Body Wash · Dove