Decent product with caveats
Review by John I. on 10 Jan 2025 review stating Decent product with caveats This OPI product will harden and strengthen your nails. Downside is that it does have some formaldehyde in it and it will dry your nails out unless your are equally consistent in using a cuticle and nail oil to keep nails moist. My nails are so thin that I will no doubt have to continue using various artificial nail products.
On OPI Natural Nail Strengthener, .5 oz