Characteristics
- INCI
- Benzophenone-4
- Ru.
- Sulisobenzone
- CAS
-
4065-45-6
This is the substance number in the Chemical Abstracts Service registry. The CAS number uniquely identifies a substance regardless of language, trade name, or synonyms.
- EC
-
223-772-2
This is the substance number in the European chemical identification system (EC number), used in European regulatory databases including ECHA/CosIng.
- IUPAC
- 5-Benzoyl-4-Hydroxy-2-Methoxybenzenesulfonic Acid
- Functions
- uv absorber, uv filter
- EU Restr.
-
VI/22
EU regulatory status: restricted use. The ingredient is permitted in EU cosmetics but its use and labelling are regulated.
More detail →
Who it's for
Description
A water-soluble, chemical sunscreen agent that is a secondary UVB absorber with some activity in the short UVA range as well. Being a secondary UV absorber means that its protection is weak and it has to be combined with other sunscreen filters for proper sun protection.
More often than not, Benzophenone-4 is not used as a sunscreen agent but as a photoprotectant to extend product shelf life, or as a color-protectant for products in clear packages.
A Contact Dermatitis article from 2007 names BP-4 as an emerging allergen, as it was the most frequently positive chemical UV filter and third most frequently positive ingredient overall among the 35 substances patch tested in the study (13 positives of 1693 people tested).
Evidence & Research on Benzophenone-4
-
1
Hughes, T. Merion, and Natalie M. Stone. "Benzophenone 4: an emerging allergen in cosmetics and toiletries?." Contact dermatitis 56.3 (2007): 153-156.Find in PubMed
Products with Benzophenone-4 (1 595 total)
Most often found in Nivea products (40 items)
