We bathed our puppies at least once a month, sometimes every week if they needed it. They never had any trouble with dry skin or skin issues. You need to make sure you rinse them well and it also helps if you have soft water. We always use a no tears puppy shampoo until they are 1 year then just use the puppy shampoo on their face and a regular dog shampoo on the rest of the body. Ours also swim in a pool alot so we bath them to get the chlorine off them. It really helped to bath them more often (at least for ours). Ziggi (our youngest now) runs up the stairs and into the bathroom when we say "bath".