Buy it9.6/10
✱ Best Overall
+ Overall thinning and reduced density
− At around $125, considerably more expensive than most cosmetic hair serums.
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Briogeo earns second place with one of the strongest cosmetic formulas in the category.
Copper peptides, caffeine, niacinamide, zinc, biotin and botanicals come together in a lightweight daily scalp treatment. Briogeo reports that a 16-week study of 35 participants showed increased density and up to 31% more follicle activity.
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