This usually happens when clients expose their nails to chemicals, like bleach, other cleaning products, or even some hair products and lotions. There are actually many products out there that can dull or change the color of polish.
I find it helpful to conduct a brief consultation before a service to find out ahead of time what type of industry she works in and if she does housekeeping. This information helps me make suggestions. I recommend different nail shapes for different professions, and advise people on what hair care products or lotions may be affecting their polish. I also suggest clients use gloves when cleaning with chemicals. — Kesha Hackett is owner of Lavender Nail & Make-up Studio in Oakland, Calif.