BEFORE APPLYING ALWAYS TAKE A SKIN TEST WITH A DROP AND WAIT FOR MINUTES TO CHECK ANY ALLERGIES. Remove immediately if redness or other signs of adverse reaction occur. Protects Your Natural Nails: To create a long-lasting protective layer, strengthen natural nails or false nails, prevent your nails from breaking, promote stronger and longer nails. Suitable for natural nails, gel nails, nail tips, acrylic nails, artificial nails, etc. LONG LASTING: Requires drying under UV or LED Lamp (Cure times vary per lighting system). 21 days or more wear, No Nicks, Chips or Smudges. The rubber gel has strong adhesion to the nails, so that your color gel nail polish is firmly fixed and prevents your nails from peeling or lifting. This base coat can increases the adhesion of nails and make your nails stronger, and provides a solid, healthy level of support for weak and damaged nails! Using rubber gel will give your nails the thickness and strength. 6PCS Rubber Base Gel in a Bottle(10ml-0.33fl.oz.e) -- Can be used separately as foundation gel and color gel nail polish, nail strengthen gel, nail shaping and stick tiny nail decorations.