They are a company which sell products without preservatives which prolong the life of the product. I purchase sunscreen and moisturiser for my husband who is allergic to the preservatives and who reacts to them by the way off a red, itchy rash under the skin which then goes septic and requires antibiotics to heal. We were highlighted to these allergies by a Watchdog programme and so having given these products a try have never looked back and would not be without them. No more visiting doctors on holiday and definitely no moaning from my husband, well about the rash anyway!!