S.O.
I noticed that when I started taking a better multivitamin my nails and hair grew healthier. My nails tend to peel as well. I take the Vitality Pack, from Vitality for Life brand. It is actually formulated to be absorbed by your body more like nature. So you actually absorb more of the nutrients than OneaDay and Centrum. Almost 75% more actually! It has made all the difference. I used to use a nail strengthener before. I don't remember what it was called. It had a green box that the polish came in and it would really protect my nails.
Congrats on growing them :)
S.