Longevity/Expiration of products?

If the products are unopened, it should be good until the expired date stated on the packaging. For my products, the expired date usually 2 years from the date i purchased it. Just store the products in a cool, preferably dark space. But, if you decide to open it, then the product longevity depends on the PAO ( period after opening) , which usually last you 12 or 6 months.

you can find the expiration date on the product packaging somewhere. as long as you keep it unopened, the product is fine until it exceeds that date. once opened, you then rely on the PAO date and should use it within that time.

About 3 years shelf life from date of manufacture

depending on the ingredients I think it’s safe to use some products past their expiration date, for example cleansers, 100% squalane oil or silicone primers. Things I would never use past the expiration date are vitamin C and short shelflife oils that oxidize.