1.7-fluid ounces of Neutrogena Hair Restore Advanced Growth Support Serum with a Micro-Peptide XP complex that includes niacinamide, feverfew, arginine, caffeine, + mango leaf extract to nourish scalp from within & revitalize roots Designed for normal to mild hair shedding, our advanced serum with 10 core ingredients that support natural hair growth uses 1.8x smaller peptides² that penetrate 10 surface layers deep for optimized delivery The scalp nourishing treatment designed to revitalize your roots, deeply nourish your scalp, and enhance visible hair density helps create a healthy scalp environment, reduces shedding and hair fall due to breakage by 41%³ Thinning hair serum from Neutrogena, a dermatologist recommended brand, to revitalize roots and nourish your scalp. It is formulated without sulfates, dyes, parabens, and phthalates To use the hair density treatment as a part of your hair care routine, separate hair into 3-4 sections from front to back. Apply one drop to damp or dry scalp in each section, focusing on areas of concern, and gently massage into your scalp