Keratin is a natural type of protein in your skin, hair, and nails. A keratin treatment adds additional keratin to your hair, which can help to reduce frizz, increase shine, and strengthen hair.
Dec 14, 2021
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Keratin is a protein that your body produces naturally, and it helps keep your hair, skin and nails healthy and strong. Your body produces keratin naturally, ...
Sep 3, 2023 · I found it counterproductive on my hair. It never smoothed it and it made it look dry. It wasn't healthy for my hair. I had quite a few done. I ...