Double Wood Supplements Serrapeptase Review
Serrapeptase is a proteolytic enzyme produced by silkworms with the main function of dissolving the silkworm's cocoon. It is most often supplemented to support joint health but has also been found to liquefy mucus and reduce the size of bacterial biofilms. This makes it helpful for reducing phlegm buildup and nasal discharge. The product carries a Notice that it contains soy and milk, and it is labelled gluten-free and non-GMO. The benefits listed on the page include reducing mucus production, where multiple studies are said to show the enzyme may decrease the viscosity of mucus and help nasal discharge. It is also described as supporting a healthy immune response, and as a systemic proteolytic enzyme that digests certain proteins. Each two capsule serving is stated to contain 240,000 SPU, with each bottle containing 60 servings, which is presented as a two month supply. The brand says it provides pure, potent supplements backed by careful sourcing and rigorous third-party testing. Directions recommend one to two capsules per day, which is 120,000 to 240,000 SPU, taken thirty minutes before eating or two hours after eating, and the page advises not to exceed three capsules per day. The certificate of analysis for lot 2611001 lists a capsule weight of 420 mg, a serrapeptase potency of 233,532 SPU against a specification of 216,000 to 360,000 SPU, a passed disintegration test within 30 minutes, heavy metal results well under limits, and passing microbial tests with E. coli, Salmonella and Staphylococcus aureus absent. The page notes the product is manufactured in an FDA-registered cGMP facility, in the USA from globally sourced materials, and that identity, potency and contaminants are verified per batch. A 30 day money back guarantee is offered. The current listing shows the single bottle as backordered and unavailable, though the price is listed at $19.95. The page also suggests pairing with magnesium products and offers a short frequently asked questions section about timing, dosage and use.
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Supplement Facts
Serrapeptase 240000 SPU
| Serrapeptase | 240,000 SPU | † |
Other ingredients: Hypromellose (capsule), Rice Flour, Magnesium Stearate and Silicon Dioxide.
Directions: Suggested Use: Take 2 capsules per day. For best results take 30 minutes before a meal or 2 hours after a meal.
Label source: Doublewoodsupplements · Report a label change
Where to Buy
Double Wood Supplements · Vitacost
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Graded October 27, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

