Hi I bought some at Excel last year for the first time. I did a pedi on my friend for her holiday in April and she went abroad, sun and sand and all that. Well I first tried to get her to have gel so not to chip but did not have the colour she wanted. Anyway the polish was still fab and still all there when I saw her for another pedi 3 months later (she is a friend not a client) I used Nubar base, pink polish and top coat. (no mixing products)