Serrapeptase by Doctor's Best is a proteolytic enzyme isolated from the non-pathogenic bacteria Serratia species found in the digestive tract of the Japanese silkworm. The enzyme is used by the worms to digest their cocoons.

Serrapeptase has been used as a nutritional supplement in Europe and Asia for nearly three decades. Each vegetarian capsule is formulated with Serrateric™ which is an alternative to enteric coating and is designed for optimal absorption in the intestinal tract. Vegan, non-GMO and gluten free.

Best Serrapeptase promotes and maintains healthy sinus and airway function and healthy immune response •Helps dissolve hard particles made of protein that cause unwanted side effects from toxins, scar tissue, blood clots and cysts •Serrapeptase is a proteolytic enzyme that comes from the Serraitia bacteria species strain E15 and has been studied for over 40 years •As serrapeptase can be destroyed by stomach acids, Best Serrapeptase uses Serrateric, a coating that protects the enzyme until it reaches the intestines and optimizes absorption •Vegan, Non-GMO and Gluten Free