Musical Spoons (clicked the wrong reply button)
Not an expert here, but I just figured it works the same way oils do. Penetrating the shaft etc. While chemical stuff just makes it look good. I heard it on hair vlog, and assumed it was true.
For example, a trichologist said, menta essential oil is scientifically proven to help new hair growth. I don't think it's the same if you rub it in the scalp as drink the menta tea or eo.
Not a scientist here,so I'm not sure how the mechanism works.
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