Nail art mica powders are great for gradient or ombre nail designs and here we have put some colours together into collections to make it easier to choose! These are cosmetic grade mica powders. To apply: Simply apply to the sticky layer of colour gel polish using a nail art edge brush and rub to blend. Seal with top coat and make sure you cap the free edge. You can always add nail decals or gems on top for a little extra in your nail design.