Anti-Acne Serum in roll-on with multi-active formula of MESO ACNE by DERMEDICS® provides truly effective and intensive topical treating of the acne syndromes (home care). YOUTH EXPERT™ Anti-Acne Serum. Anti-inflammation and anti-oxidant: Fleischer’s Willowherb Inhibition of hyperkeratosis: Nordihydroguaiaretic Acid Inhibition of 5α-reductase*: Oleanolic Acid