Strengthen hair with Type 17 Collagen: An essential role in human hair. Breakdown of Type 17 Collagen leads to shrinkage of hair follicle causing hair loss problems. MARO 17 works to regenerate Type 17 Collagen. Nourish & thicker fine & thin hair. Professional in Hair & Scalp Care: MARO17 specially formulated with Capixyl to treat scalp problems. With unique peptide complex formulation to activate Type 17 Collagen regeneration nurture & stengthen hair strands.