Looking for a baby bottle that's easy to use and designed for your little one's comfort?. Dr. Brown's Natural Flow 4 oz. Their bottles are made of BPA-Free Plastic and have Anti Colic nipples which are slow flowing and made of silicone.
There was mold growing in bottles and inside pieces even though these would be sanitized they still had dark that would not come out. Threw away! I bought new ones from Amazon.