You can’t fill your hair with collagen, but that doesn’t mean that Vichy’s new Collagen-Filler 17 line doesn’t work. You CAN apply peptides, amino acids, and proteins to your hair to smooth it down. The Collagen-Filler 17 line also has citric acid in it, which helps lower the pH of the product in order to close the hair cuticle, making your hair smoother. The science in these bottles makes a lot of sense.
I love that this line includes a pre-shampoo treatment that you apply to wet hair, leave it on for 5 minutes before going in with a shampoo. If you have dry and frizzy hair, applying a treatment to the lengths before shampooing is always a good idea. If you don’t have the Collagen-Filler product, even a conditioner or a hair oil will be worth trying, but if you want the smoothing capabilities of keratin, then the Vichy Collagen-Filler 17 pre-shampoo treatment is a great option.
