Self-Help Shampoo
$22
gentle sulfate-free cleansing infuses keratin for strength to repair and smooth hair that has been chemically sensitized
Naturally found in the composition of hair strands, this structure-supporting protein is especially integral to hair growth, thickness, shine, and manageability. Keratin helps to smooth and seal the hair’s cuticle, resulting in sleek, frizz-free strands. Because of keratin’s organic origins, it also helps mend split ends and combats breakage.