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SolaStay P1® (Polyester-25), a bis-methoxycrylene/octyldodecyl adipic acid/methylpropanediol copolymer, is a highly effective singlet state quencher, permitting formulators to combine active ingredients once considered too photo-unstable to be effective. SolaStay P1® is a copolymer that photostabilizes Avobenzone extremely well. As with SolaStay S1, it protects against lost of absorbance much faster than Octocrylene, and is suitable … Continue reading SolaStay P1®
