Sulfate-free, fragrance-free shampoo gentle enough for daily use. Non-irritating, non-comedogenic (won't clog pores), anti-frizz (tested as a regimen), anti-breakage (tested as a regimen).Using Fragrance Free SEEN Shampoo and Conditioner is proven to reduce hair shedding by 44% in a Harvard clinical trial.**Randomized, controlled clinical trial conducted by the Hair Loss Clinic at Harvard's Mass General Hospital. Fragrance Free SEEN Shampoo and Conditioner used as a regimen for 6 months, with optional Fragrance Free SEEN Blow-Out Creme. Study included 29 patients with female pattern hair loss, including control patients.