Buffing removes the shine from your nails, giving the polish more grip on your nails. Buffing doesn't make your nails stronger, but it does make your manicure last longer. ... Once your nails are filed, use a multi-sided buffer to buff, polish, and shine your nails. Then, you can paint them or leave them natural!
Buffing can increase the blood circulation to the nail bed. Buffing off the ridges also gives a smoother surface for the polish to adhere to. Actually buffing leaves such an attractive sheen to the nails, that you might skip the polishing step. ... Buffing encourages the nails to grow thanks to the improved circulation.