Effect pigment reminds a mixture of pearly pigment and fine glitter. Choose the way you apply the pigment according to the characteristic you want to highlight. If you prefer the glitter effect, sprinkle some pigment on the layer of coloured gel or gel polish (or on coloured polish that has not cured fully yet). Cover with top gel or top coat.
If you want to achieve a gentle pearly shimmer, rub the pigment onto the hardening top gel (don’t let it cure fully) or into the sticky layer of the drying gel (after wiping off any excess if necessary). Cover with top gel to fix the effect.