Alaska puppies will begin to shed their hair when they are 3 months old and continue until they are eight months old. Adult Alaskans will begin to shed their hair in spring and autumn every year, each lasting for about three months. The hair loss in Alaska is very serious during the moulting period, so you need to comb your dog's hair frequently, and at the same time, you need to supplement nutrition so that the new hair will be healthier.