My fingers split in the winter time due to me working on cars and trucks, you would think the oil's and greases would actually help but that not so, tends to dry out the skin and the solvents really tear them up. When i started doing automatic transmissions i had the cleanest softest hand you have ever seen and no more skin cracking...lol...i can survive with cracked skin but this IBS i have right now is for the birds...lol