The product warning is to remind you that natural skincare products can expire and should not be used past their expiration date. Natural skincare ingredients vary widely in their chemical makeup and responses to oxidation, and therefore different outcomes occur when pushed past their shelf-life date. expired productS may result in irritation, redness, or other adverse effects. To ensure safety and optimal product performance, refer to the expiration date listed on the product packaging and discard any products past their expiration date