Similac formulas come in a variety of forms so you can find a formula for your baby that works for your family and that supports your baby’s development and nutrition. Enjoy the convenience of Similac Ready To Feed formulas when you’re on the go or in a rush at home. Use Similac powder formula to make your own formula at a cost-effective price. Similac Pro Advance is the world’s closest formula to breast milk. It contains a new innovative formula ingredient, 2’-FL, that is found in breast milk and helps build your baby’s immune system. Similac Pro Advance is the first and only infant formula in Canada with 2’-FL as well as a blend of DHA, lutein, and natural vitamin E. It is non-GMO, easy to digest, and made with milk from cows not treated with artificial growth hormones. Browse the selection of Similac formula online or in store at London Drugs.