EU USA UK registered product. Why is it unique? Urea is part of your skin natural hydration. As we age urea decreases along with skin moisture. Not only a wonderful hydrator (it is found in medicated creams for dry skin) Urea is a mild keratolic (exfoliant) removing dead skin cells. Hydration and keratolic ? Seems like a dream ingredient why is it not used more?..simple , Urea is a very unstable molecule. We are the first company in the work to stabilize urea in a serum. Attention! Product has to be kept at less than 34C/93.2F . Note that product can travel up to 14 days at higher temp. One year shelf life! What does it do. Wonderful hydration , antiaging , works differently than HA. This serum is preserved using sodium levulinate , sodium anisate (extracted from star anise) . Those preservatives are 100% natural and good for skin . How to use it. Apply 2-4 drops to the face and neck area and massage gently (your skin might need slightly less/more). Use 1- 2 times a day.