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Repeated trauma to toenails, caused by ill-fitting shoes, can cause deformities in the nails. The deformities may resemble a fungal infection; nails can be thickened or discolored and can lift away from the nail bed, which causes cosmetic concerns.
Habits such as nail biting and cuticle biting also can cause trauma to the nails. Nail biting is a main cause of acute paronychia, a type of infection in which bacteria get underneath the tissue at the side of the nail and cause swelling and irritation. Repetitive picking at your thumb's nail and cuticle with your index finger can produce a line of horizontal hatch marks in the middle of the nail; in extreme cases, the nail can split.

This nail sealer is especially formulated for dry, brittle and damaged nails as it contains vitamin E to help make your nails more flexible and elastic. For best result apply after a coat of LCN's Base Coat for damaged nails, weekly.