Would change in skin pH cause foundations to oxidise?
Would change in skin pH cause foundations to oxidise? I have 4 foundations that I use (MUFE Watertone, MUFE stick, Giorgio Armani Luminous Silk, Missha compact foundation) and all of them are oxidising on me. This has NEVER happened before! The Missha foundation is my 3rd one and very new. The others are varying in age. Swatched both on my face and my hand- oxidised both places.
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