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HomeCosmeticsUnilever information worldwide patent for two-step SPF UVA safety by way of...

Unilever information worldwide patent for two-step SPF UVA safety by way of cleanser and sunscreen


Writing in its worldwide patent​, Unilever stated the two-step utility methodology provided the “synergistic profit”​ of excessive Solar Safety Issue (SPF) and UVA safety issue (UVAPF). The strategy comprised of washing the pores and skin with a cleaning composition comprising water-soluble sunscreens, in bar or liquid type, adopted by making use of a leave-on sunscreen composition to the pores and skin as a cream, gel or lotion.

Unilever stated the 2 merchandise may very well be provided to shoppers in “equipment”​ type with directions to be used.

Past leave-ons

Unilever stated that while most solar safety choices have been in leave-on codecs, like lotions, lotions and gels, it was additionally doable to supply safety by way of wash-off merchandise like soaps, face wash or physique wash. Nonetheless, providing ample safety in a wash-off product remained difficult, the corporate stated.

“It’s an especially tough problem to ship sunscreens onto pores and skin when the first objective of wash-off merchandise is to take away the filth and oils from the pores and skin floor and along with that, the actives within the wash-off merchandise are additionally extremely prone to get washed away. Thus, enhanced deposition of actives via wash-off merchandise is an ongoing problem,”​ Unilever wrote in its patent submitting.

Scientific groups at Unilever subsequently got down to discover a technique to counter this downside and after “in depth experimentation”​ they “come across a novel two-step methodology”​.

Cleaning and defending

The corporate stated it had developed a wash-off composition that deposited excessive ranges of sunscreen while sustaining good lather on the pores and skin, and enhanced deposition of the protecting actives was seen in each stable bar and liquid cleaning codecs. In the end, the corporate stated the cleanser is also developed within the type of a shampoo or conditioner as nicely, providing photo-protection to the hair and scalp.




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