Probiotic-10 25 Billion

NOW Foods is a highly reputable manufacturer with excellent GMP standards, and they guarantee potency through the expiration date, which is rare at this price point. However, the product lacks specific strain codes (alpha-numeric designations) and uses a proprietary blend, making it impossible to match the bacteria to specific clinical studies. Additionally, it lacks an acid-resistant delivery system, which may result in lower bacterial survival through the stomach.