It promises to work for all textures, smoothing frizz, retaining moisture, and helping to boost low
keratin levels.
Protein helps raising
keratin levels, which is required for grow hair faster and stronger.
Not exact matches
Plus it's packed with high
levels of vitamins A, C and K to stimulate advanced
keratin production, hydrate and nourish nails.
However, there's two problems: firstly,
keratin production is a tightly regulated process, and simply supplying more of one ingredient won't increase your
levels if your skin is already making enough, and secondly, there's no evidence that MSM increases
keratin production at all.