Golden Rose-Nail Expert Black Diamond HardenerHarder, stronger nails with black diamond particules. Double patented ingredients of micro diamond particles and hardening agent. Instantly reinforces thin, weak and fragile nails by building a hard protective and glossy shield. This quick drying hardener shield helps to prevent chipping, breaking and splitting of nails after 4 weeks of regular use.* *Results of 4 weeks of use efficacy test. How to use: Shake gently As a base coat, apply one coat on
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