arti on Instagram: "Ever noticed the little open jar icon on your skincare or makeup with something like 6M, 12M, or 24M? That’s the PAO date (Period After Opening). It tells you how long the product is good for after you first open it. For example 12M means the formula should be used within 12 months of opening before it may lose effectiveness or risk growing bacteria! 💖 #pao #skincare #paodate #skin"