The semi-permanent varnish shows regrowth after a few weeks. If you don't want to replace your manicure yet, you can have your regrowth touched up. Below is a step-by-step plan for touching up a semi-permanent nail polish manicure. Retouching a semi-permanent varnish manicure: Step 1: Make the exposed edge matte Only remove the top layer with a portable nail drill. Matt the natural nail and the old semi-permanent varnish. For better adhesion, we recommend filing horizontally. Degrease the nail with a cleaner. Rechargeable Maryton Pro Nail Drills 1,000 ~ 30,000 RPM Step 2: Apply nail prep and primer Apply the nail prep on the area