Powered by a Amino M³ Complex™, this cooling scalp serum balances the scalp microbiome to soothe dry scalp itch and reduce loose dandruff flakes. Powered by a Amino M³ Complex™, this cooling scalp serum balances the scalp microbiome to soothe dry scalp itch and reduce loose dandruff flakes. Founded by celebrity hair stylist Helen Reavy, Act + Acre is rooted in the belief that great hair starts at the scalp. Creating and patenting the Cold Processed® method, the result is a nutrient-rich formula that leads to stronger, more resilient hair health.