Better hold for nail polish
Before painting, wash the fingernails in vinegar water or wine. Removes oil and grease and opens the nail surface. Then dry with a dry clean cloth (Zewa). Then paint. The treatment keeps the nail polish better.
Pooh: Is not recommended, the acid contained in the long term breaks the nails. Also, nothing opens, the nails are only rough, because they are attacked. And if you do not take a transparent varnish as a base, the nails are so in the long run really beautiful unsightly (yellowed).It is perfectly sufficient to wash your hands first with soap that is not mixed with any creamy oils.