The perfect bottle everytime. No. 1 infant formula brand. No palm olein oil. No artificial growth hormones (No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows). Hypoallergenic. Immune support. Brain & eye development. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby. Filled by volume to 1 quart. Extra space in bottle allows for shaking and easy pouring.