Info Ever puzzled what the little open jar image means on your skincare packaging? It’s the PAO , and refers to what number of months the product is OK to use after opening. For example, “12M” means you must ditch it 12 months after breaking the seal. If a product’s preservatives are no longer functioning it might possibly become contaminated, leading to skin irritation or even a bacterial infection. Then there are all these active elements which will may have deteriorated, making application somewhat pointless. A century of trusted beauty advice is so much for anyone to digest, so how higher…
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