You should start by applying a thin layer of N4Y gel and harden 60 seconds in LED light. Then you can apply your builder layer (a thicker layer) which you again harden for 60 seconds in LED light before sculpting and shaping your nail with our files.
N4Y gel can harden in both LED and UV light.
NB: avoid skin contact, if the accident is out,
remove the product on the skin immediately,
remember to wash your finger after making nails.
