Epilobium Angustifolium (Willow Leaf Extract) also known as provides Inhibition of 5-alpha-reductase. From the family of the fabulous Evening Primrose, Epilobium Angustifolium is also known as Fireweed or Rose-Bay Willow Herb. One of the hottest items on the botanical market today, Epilobium Angustifolium is currently being studied the world over due to its astounding ability to inhibit 5-alphareductase, more commonly know as DHT. 5-alpha-reductase is an enzyme that rears its ugly head in later life, causing both adult acne and other issues typically associated with the aging process. From a cosmetic point of view, the hyperactivity of the skin’s 5α-reductase leads to an overproduction of sebum, which can be regulated by the application of Epilobium Fleischeri The producer combines its long experience in natural product extraction with its philosophy to develop active ingredients based on the research of rare Alpine plants organically cultivated in the Swiss mountains. Alpine plants are believed to contain especially high concentrations of metabolites to protect them against the environmental stress of high altitudes. These plants are ideally suited feedstocks for the production of ingredients to treat and protect our skin. It is an innovative treatment against oily skin and its related problems reduces sebum production and oily appearance of skin reduces the size of pores It has been clinically shown, in vivo, to reduce the size and appearance of pores, reduce skin inflammation and reduce the production of 5a-reductase.