Acne is one of today's most significant skin concerns. Acne, especially in females, may persist well beyond the teenage years, affecting approximately 50% of women between 20-29 years old and 25% of women 40-49 years old. There is currently no single known cause for acne. However, a number of factors may be present during the course of the disease, such as heredity, hormones, increased oil production, bacteria and retention hyperkeratosis, an abnormal build up and retention of cells in the follicles of individuals who are acne prone. Jan Marini products designed for adult acne treat and prevent breakouts so you have your smoothest skin ever.