GlyMed Plus skin care is an amazing line and has wonderful products.  However, there are people/sellers on this site that are selling products that are very old and not usable anymore.  If you find a product that is labeled "Oxy Radical" then you know it's really old.  They changed the name of that line at least 3.5 years ago, if not longer.  It's new name is Cell Science.  I would hate for you to spend a lot of money on a product and get it home and have it not work for you.  If you see Serious Action Skin Gel and it is in a green bottle, that is old, don't buy it.  The new packaging is a white bottle with an orange stripe and black lettering.

Also, another HUGE point is to ask a seller when the expiration date of something is.  It will be on the crimp at the top of the product (if it's a tube) or on the bottom of it.  If they don't have it, then ask for the lot number.  You can call GlyMed's 800 number (800-676-9667) and ask them when the product was made by giving them the lot number.  These products are really excellent, but if you buy something that is past the expiration date then it's probably not going to work right for you.  Always ask the expiration date of sunscreen that you are buying also.  They have a shelf life and you don't want to buy a 4 oz tube if it's expiring the next month.  Sunscreen loses it's potency and you would hate to buy it, put it on and then go out in the sun thinking you are protected and get burned.  Be a safe buyer and ask questions.  Don't feel bad asking them, it's your job to make sure you are informed, especially when buying "active" products. 

This advice is good for all skin care products.  Always ask what the expiration date is to be safe.  If you found this guide helpful then please give it a rating of "yes".  Thanks for looking.