A water-soluble UVB filter.
What it is
Phenylbenzimidazole sulfonic acid (ensulizole) is a water-soluble organic UV filter that absorbs UVB radiation. It is listed in Annex VI of the EU Cosmetics Regulation.
Where it is used
Found in light sunscreens, gels and SPF moisturisers.
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.
Functions
- Light stabilizer
- Protecting the cosmetic product from deterioration effects of light.
- UV absorber
- Protecting the cosmetic product from the effects of UV-light.
- UV filter
- Exclusively or mainly intended to protect the skin and/or hair against certain UV radiation by absorbing, reflecting or scattering UV radiation. All authorised UV filters are substances in the positive list of Annex VI to the Cosmetics Regulation 1223/2009.
EU regulation
EU · Annex VI, entry 62-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole
- Maximum concentration
- 8%(as acid)
- As of
- 3 November 2026 · (EC) 2009/1223
Products with this ingredient (285)
- Skin Defence Hydrating Hand & Body Protector SPF50+ PA++++ · The Body Shop
- Skin Defence Hydrating Body Protector SPF50+ PA++++ · The Body Shop
- Revolution Beauty Rapid Tan Accelerator SPF 20 · Revolution
- Revolution Skin Sunray Blur Daily Protection Sunscreen SPF 50+ with Niacinamide · Revolution
- Revolution Skin Sunray Glow Daily Protection Sunscreen SPF 50+ with Vitamin C · Revolution
- Revolution Pro Miracle Cream SPF30 · Revolution
- Facefinity All Day Flawless 3 in 1 Make-up · Max Factor
- Miracle Prep Pore Minimising & Mattifying Primer · Max Factor
- Radiant Youth Day Cream SPF30 · Lumene
- Blur 16h Longwear Foundation SPF15 · Lumene
- Natural Glow Fluid Foundation SPF20 · Lumene
- Fresh Hydration Moisturizer SPF50 · Lumene