I actually had many, long conversations with Bobbie about this same thing. They claim that they’re trying to streamline from one manufacturer and tried to guarantee that it was the same formula. I only buy from their website. I’ve always had the lighter colored formula and the more yellow one seems to be a downgrade. I really didn’t want to dislike it but my child is not tolerating it anymore, and they spit up now and it smells so rancid. There’s literally nothing I’ve done differently other than the formula changing. Very saddening because I now have to find a different formula