Esbilac Puppy Milk Replacer is a high-quality and nourishing alternative to mother's milk for orphaned or rejected puppies. Ideally, pups should be given colostrum milk for the first 2 days after they're born. But when you don't have access to mother's milk, you should consider using a milk replacer formula. While Esbilac Puppy Milk Replacer is suitable for puppies (newborn till 6 weeks of age), it's important to consult your vet regarding feeding intervals and amounts.