Green to Grow BPA Regular Neck Bottle - 5 oz Green to Grow 5 oz regular neck baby bottles are made from PES plastic, which gives them a natural golden color. They are of phthalates and of bisphenol A – a suspected hormone-disrupting chemical used in polycarbonate plastic, from which most baby bottles are made. -Bottles are tested in the U.S. to ensure they meet the highest standards for quality and safety- of lead and PVC -Includes a Beginner (slow flow, 0-3 months) nitrosamine- silicone nipple-100% recycled packaging-Dishwasher safe (top rack)