Improper preparation of the nail plate
If you do not cleanse your nails properly, the oils on the nail plate is incompatible with the gel.
Thick base coat
When you apply the thick base coat on the nails for a short curing time under lamp, the thick inhibition layer appears so that the base coat is not completely dry, which causes the shrinkage of colour gels.
Thick colour gels
If you apply the thick layers of colour gels, even for a short curing time under lamp. That will cause colour gels to shrink.
The base coat is incompatible with the colour gels.
Separated ingredients without well mixed
Ensure your bottle of gel polish is well shaken. Sometimes the ingredients can separate and cause shrinking.
Please kindly note that the reasons of colour gels shrinking should be accordingly judged from the operating steps of users.