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#3 in Digestive Health Third-Party Tested

Source Naturals Serrapeptase

by Source Naturals

"The powerful proteolytic enzyme for inflammation and sinus support"

Amazon Rating
4.5/5
Reviews
5,000+
Price Range
$18-24
Servings
120 capsules
GMP Certified
Our Editorial Rating
7.6
Good
FormCapsule
SubcategoryProteolytic Enzyme
View on Amazon

Overview

Source Naturals Serrapeptase delivers 60,000 SPU (serratiopeptidase units) of this powerful proteolytic enzyme per capsule. Serrapeptase is derived from the silkworm and has been used in Europe and Japan for decades to support healthy inflammation response, sinus health, and cardiovascular function. It works by breaking down non-living tissue, blood clots, cysts, and arterial plaque. The enteric-coated capsule ensures the enzyme survives stomach acid to reach the intestines intact.

Key Ingredients

IngredientAmount
Serrapeptase60,000 SPU

Pros & Cons

What We Like

  • 60,000 SPU — potent dose
  • Enteric-coated for survival through stomach acid
  • 120 capsules per bottle
  • Decades of use in Europe and Japan
  • Supports healthy inflammation response

What Could Be Better

  • Should be taken on an empty stomach
  • May interact with blood thinners
  • Limited large-scale clinical trials
  • Can cause nausea if taken with food

Who Is This For?

Best For

  • Sinus congestion support
  • Inflammation management
  • Post-surgical recovery
  • Cardiovascular support

Not Ideal For

  • Those on blood thinners
  • People with bleeding disorders
  • Those who can't take pills on empty stomach

Our Verdict

7.6/10 — Good

Source Naturals Serrapeptase is a well-formulated proteolytic enzyme supplement with a potent 60,000 SPU dose and proper enteric coating. Popular in integrative medicine for inflammation and sinus support, though more large-scale clinical trials would strengthen the evidence base.

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