I am pretty sure remembering to take a Biotin supplement daily was the largest contributor to my nail health. It takes a while to see results, so consistency is key. While I was waiting for that to kick in, OPI's Nail Envy is an old standby for strengthening fragile nails. I use it as a base coat. Another final step is to keep hydrated. Currently my favorite cuticle oil is NCLA So Rich. The Face Shop Protect Me Hand Cream is too cute to forget to use.
What are some of your essential nail care products?