This plant based dry shampoo absorbs oil without contributing to excess product build-up on the scalp. The nutrient-rich formula delivers over 65 minerals to the hair follicle to support the scalp microbiome. This plant based dry shampoo absorbs oil without contributing to excess product build-up on the scalp. The nutrient-rich formula delivers over 65 minerals to the hair follicle to support the scalp microbiome. 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.