Do you want beautiful long nails in 1 week top time? Well the best tip I can give you is to stop biting your nails ASAP!
A really effective trick to stop biting your nails is to apply a special nail polish! There are indeed nail polishes with a bitter taste! So believe me, you will never bite your nails again with this product!
To repair your bitten nails and help them grow again, you can apply a little castor oil every day.