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ISDIN Si-Nails Serum Review: Does It Actually Strengthen Brittle Nails?
I spent three weeks with the ISDIN Si-Nails serum to find out whether this tiny 0.08 FL OZ bottle could actually make brittle, splitting nails more durable. Developed in Spain with Silanediol salicylate and Cationic hyaluronic acid, this nail strengthening serum sits at around $15-20 on Amazon. Here's what actually happened after consistent daily use.
haunh5 min read