(Chemical name Phenylbenzimidazole Sulfonic Acid) is a highly effective UVB sunscreen. and can be dissolved in water directly

Ensulizole (chemical name Phenylbenzimidazole Sulfonic Acid) is an effective UVB sunscreen. and can be dissolved in water directly

Popularly called the trade name PARSOL HS.

Ensulizole is suitable for use in sunscreen formulas. You want it to be a clear gel because Ensulizole can dissolve directly in water.

Ensulizole is suitable for adding SPF to all sunscreen formulas because other sunscreens will dissolve in oil Or dispersed in oil, dissolving Ensulizole in the water in the sunscreen formula will help the formula to block UVB more completely. Because the water phase is protected from UVB passing through.

Ensulizole is less effective at blocking UVA and can block only UVB.

Ensulizole dissolution requirements

Ensulizole can be dissolved directly in water but must have a pH higher than 6.8. The ideal pH for the formula is 6.8-7.0 to suit the skin. (If it's more alkaline than this will not be suitable for the skin) and to prevent Ensulizole from precipitating.

Usage: For sun protection products that has water as a component

Mixing method: Mix in water.

Usage rate: 1-8% (FDA, Thailand and EU stipulate that it can be used not more than 8%).

Product appearance: White or light yellow powder

Solubility: Can dissolve in water (Please study the dissolution requirements above)

Storage: For long-term storage Store at room temperature. At least 2 years old

INCI Name : Phenylbenzimidazole Sulfonic Acid

Examples of products using Ensulizole

L'occitane SPF50 REINE BLANCHE UV shield SPF 50

CHANEL UV Essentiel Anti-Pollution Broad Spectrum SPF 30