Benzophenone-4 is a water soluble broad UV-filter. It has worldwide approval for skin protection and it is widely used in sun preparations.It can also offer protections of colorants against fading and help stabilize fragrances and active ingredients against oxidation.
Benzophenone-4 (Sulisobenzone) is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. Its sodium salt, sulisobenzone sodium, is also referred to as benzophenone-5.
Benzophenone-4 is a white or pale yellow powder. It is used in bath products, makeup products, hair products, sunscreens and skin care products to protect cosmetics and personal care products from deterioration by absorbing, reflecting, or scattering UV rays. When used as a sunscreen ingredient,
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Benzophenone-4 is used to enhance UVA/B efficacy where a water soluble active is required. It helps stabilize UV sensitive formulations such as hair dyes, hair sprays, and facial toning lotions.
What is benzophenone 4 used in?
It is used in bath products, makeup products, hair products, sunscreens and skin care products to protect cosmetics and personal care products from deterioration by absorbing, reflecting, or scattering UV rays. When used as a sunscreen ingredient, Benzophenone-4 protects the skin from UV rays.
Formulating
Benzophenone-4 is approved world,the maximum concentration in ready for use preparation various according to local legislation.
The sulfonic acid group makes Benzophenone-4 soluble in water,these acid group must be neutralized with one of the usual neutralizing agents,e.g.Na OH.The yellow color of benzopheonone-4 is intensified bu neutralization,this may change the coloration of the solution.
It should be noted that Benzophenone-4 is not compatible with magnesium salts.
Toxicological Data
The expert Panel released the final report on the safety assessment f Benzophenone-1,-3,-4,-5,-9 and -11
( December 18,1981) stating that these ingredients were safe as used in cosmetic product.
A CIR ( cosmetic ingredients review) report is available.
Microbiological limits
Total aerobic count max.100 cfu/g
Storage and packaging
Expiry Date
in unopened original packaging and under adequate storage condition minimum 24 months