Writing in its US patent, Beiersdorf stated the formulation mixed natural filters with particular impact pigments to supply “aesthetically pleasing visible results to the pores and skin” akin to a tender shine, satin luster, sparkle impact or metallic look.
The corporate stated the formulation could possibly be used to develop sunscreen lotions and lotions, predominantly for the pores and skin, but additionally variants that provided safety for the scalp and hair.
Significance positioned on aesthetics and product really feel
“In some embodiments, the compositions, when utilized on pores and skin, have enticing shimmer and glow results that present a product mass tone that disappears on the pores and skin. For instance, in a single variation, the composition imparts a golden, rosy, coppery, bronzed or rose gold, shimmering impact on the pores and skin,” Beiersdorf wrote in its patent submitting.
Importantly, the corporate stated the merchandise could possibly be utilized to “all pores and skin varieties” with out altering pores and skin tone or creating an ash or chalk impact.
Past aesthetics, it stated the formulation is also designed to supply a “cooling” and “gentle really feel” that resembled a moisturiser moderately than a sunscreen. This, it stated, was achieved by way of a “fast break impact” whereby upon software there was an instantaneous water launch offering a cooling impact on the pores and skin.
Designed round restrictions for US market
Beiersdorf stated it had developed a number of formulation variations utilizing completely different pigments, and in some circumstances layered substrates, to keep away from elements that had been both prohibited in US cosmetics market or restricted. Silver powder, for instance, had been averted altogether and so had titanium dioxide as a result of it couldn’t be utilized in mixture with avobenzone.
Appropriate layered-substrate pigments, it stated, included glass, silica and mica. Appropriate colorants included steel oxides, steel salts and natural pigments. In any mixture, Beiersdorf stated the pigment a part of the composition needed to be between 1%-25% by weight of the full product.
Different lively brokers had been additionally built-in into the formulation to supply SFP safety, alongside further advantages like anti-ageing, anti-wrinkle, oily pores and skin therapy and even insect repellent properties.
“It’s typical to make use of combos of two or extra skincare lively brokers in a formulation,” Beiersdorf stated, although any mixture needed to align with FDA tips and restrictions from different governing US our bodies.
The corporate stated all formulations had been developed to stick to a Solar Safety Issue (SPF) of 15, 30 or 50, with some additionally providing UVA Safety Issue. The formulation is also developed to have robust water resistance and be tear-free.
WIPO Worldwide Patent No. US/2022/0133610
Printed on: Could 5, 2022. Filed on: January 30, 2020.
Title: “Sunscreen compositions”
Inventors: Beiersdorf – Y. Zhang and SJ. Backman