Hiya, I have done a ladies nails with Shellac in Hotski To Tchotchke and a few days later she got in touch to say the colour has faded on some nails. In the meantime she painted over them with a similar blue nail polish. She arrived today and I have removed her nail polish and have taken a picture of her faded nails to see if you can shed any light on it. She is a smoker and yes there is a little nicotine staining, but would that make the colour fade? She is also on steriods, but I though it would affect all the nails not just certain ones. If you have any suggestions as to why this has happened then please let me know.