Doctors Best

Serrapeptase 40,000 SPU

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Science-Based Nutrition™

Dietary Supplement

Helps Support Healthy Sinuses

Helps Breakdown Unwanted Proteins


Non-GMO/Gluten Free

Serrapeptase (serratio-peptidase) is a protein-digesting enzyme isolated from the friendly bacterium Serratia E-15 discovered in the Japanese silkworm, and has been used as a nutritional supplement in Europe and Asia for over three decades. Doctor's Best Serrapeptase 40,000 SPU is formulated with Serrateric™, a superior alternative to enteric coating that protects the individual enzyme until it reaches the intestine for optimal absorption.


Suggested use

Adult Use: Take 1 capsule daily with at least 8 oz of water on an empty stomach, or as recommended by a nutritionally-informed physician.