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High Potency Serrapeptase 120,000SPU

270 Veggie Caps DRB-00307

Enzyme to the rescue.

Serrapeptase has been used as a nutritional supplement in Europe and Asia for more than  three decades. Known to promote healthy sinuses and airway function, it is a protein-digesting enzyme isolated from the friendly bacteria Serratia E-15, which is found in the Japanese silkworm.* A worm? Yes, a worm. 

We chose Serrateric™ for this formula because it protects the individual enzyme until it reaches the intestine—this allows us to more efficiently absorb the nutrient.* Breathe a little easier with Doctor’s Best Serrapeptase.*

  • Non-GMO
  • Gluten Free
  • Vegan
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I can breathe. All my asthmatic symptoms disappeared and I am not dependent on my inhaler or steroids anymore.

Reviewed in the United States on July 15,

Been using this for a while, it does a great job at clearing your lungs! Just take two the first day, then one a day after that. You will feel a serious difference in your breathing. I think it also has made two warts fall off and a couple of moles!

Reviewed in the United States on January 11,

I suffer from Bartholin gland cysts every four to six months. Since adding serrapeptase to my daily intake, I find I get them less. If a cyst does form, it is cleared up very quickly before fully developing. Strongly recommend!

Reviewed in the United States on February 25,
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Breaking down proteins, one at a time

If you’re into supporting your health using natural methods, serrapeptase is the way to go. It’s one of the most potent proteolytic enzymes that has been studied and clinically tested. It helps dissolve hard particles made of protein that cause unwanted side effects from toxins, scar tissue, blood clots and cysts.*

Suggested Use

Each serving contains 120,000 serratiopeptidase activity units (SPUs) of serrapeptase and 30 mg of calcium. Take one veggie capsule daily with at least 8 oz. of water on an empty stomach.


Serrateric is a non-GMO natural coating-free acid protection system.Serrateric is a combination of approved food additives (self-affirmed GRAS) that work to provide gastric protection for pH sensitive enzymes without the need for additional coating.

Doctor's Best products can be found at vitamin specialty, chain and independent natural product stores across the country, as well as online. We recommend that you use our online Where to Buy store finder to find a store near you or one of our online partners who can ship to you directly.

Doctor's Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. Doctor's Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin.