Cosmetic ingredient dictionary
Phosphoric Acid in cosmetics: what it is and what it does
Phosphoric Acid is a cosmetic ingredient that keeps the product's acidity steady. Open Beauty Facts finds it in 265 products, most often nail polishes.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Phosphoric Acid do in a product?
In a cosmetic product, Phosphoric Acid keeps the product's acidity steady. The EU’s CosIng database lists this job for it: buffering.
What other names and numbers does Phosphoric Acid have?
- CAS number
- 7664-38-2
- EC number
- 231-633-2
- CosIng reference
- 36546
Which products contain Phosphoric Acid?
Open Beauty Facts finds Phosphoric Acid in the ingredient lists of 265 of the 22,021 products it has a list for, most often nail polishes, breathable nail polishes and hair care.
Products with it, by country of sale: Norway 61 · Turkey 60 · France 35 · Australia 24.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Phosphoric Acid turns up, not how much of the market it is.
Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors
Sources
The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.
- European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
- Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL
Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check
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