Ahava This one-of-a-kind night concentrate is based on patented EXTREME™ Complex, which combines ingredients from the highest and lowest places on earth: botanical extracts from the Himalayan mountains and potent minerals from the Dead Sea. It is proven to work during sleep to promote firmness, smooth the complexion and strengthen the skin' natural defenses while enveloping it in a relaxing sensation. After just four weeks, 94% of women noticed firmer skin. The study was performed by an independent clinical lab on 47 female participants aged 40 or more with one application a day and under the supervision of a professor of dermatology. Promotes firmnessSmooths the complexionReinforces the skin's natural barrier