Natural Factors: Zymactive Regular Strength with Serratia Peptidase (90 Tablets)

Natural Factors: Zymactive Regular Strength with Serratia Peptidase (90 Tablets)

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Inflammation is often the root of many acute and chronic illnesses. Zymactive systemic enzyme formula with Serratia peptidase is a powerful anti-inflammatory supplement that can help with a wide variety of ailments including arthritis, digestive issues, sports injuries, herpes zoster (shingles) and, autoimmune disorders.

PeptizymeSP, a proprietary enzyme referred to as the silk worm enzyme has a more powerful and broader pH stability than chymotrypsin and trypsin. It has been used in Europe and Japan for more than 25 years for inflammation, post-surgical swelling, carpal tunnel syndrome, and ear, nose, and throat disorders, with good clinical research behind it. The strength of Zymactive lies in its unique combination of proteolytic enzymes that break down proteins that cause inflammation and pain. These enzymes, including pancreatin, papain (derived from papaya), bromelain (sourced from pineapple stems), and serratia peptidase exert anti-inflammatory effects that reduce damage to tissues. Serratia peptidase, also known as serrapeptase or "the miracle enzyme", is derived from a bacteria that is found in the intestines of the silkworm. Silkworms use the enzyme to break down their cocoons. Natural Factors Zymactive systemic enzyme formula with Serratia peptidase is more than twice as potent as other proteolytic enzyme supplements. The tablets are enteric coated to protect the proteolytic enzymes from being destroyed by stomach acid. The tablets are well tolerated and are not associated with any significant or uncomfortable side effects.


  • Aids in proper digestion.
  • Reduces inflammation.
  • Relieves pain for sports injuries or trauma.
  • Support for sinusitis, asthma and bronchitis.


For digestive support 1-2 tablets with meals, or as directed by a health care practitioner. For anti-inflammatory and immune function: 1-2 tablets 3-5 times daily on an empty stomach with water or juice, or as directed by a health care practitioner for use beyond 4 weeks.

Recommended Use

Digestive enzyme.


Medicinal ingredients

Each Tablet Contains:  
Pancreatin 8X* 100 mg
Papain 30,000 USP/mg 60 mg
Peptizyme SP 200,000 SPU/g (Serratia Peptidase) 26 mg
Bromelain 1,200 MCU/g 25 mg
*8 times more concentrated than USP standard.  
USP (United States Pharmacopeia), SPU (Specialty Peptidase Unit), MCU (Milk-Clotting Unit).  


Non Medicinal Ingredients: Microcrystaline Cellulose, Purified Water, Enteric Coating (Purified Water, Ethylcellulose, Medium Chain Triglycerides,

Oleic Acid Carbohydrate Gum [Cellulose], Glycerin, Sodium Alginate, Stearic Acid), Croscarmellose Sodium Maltodextrin, Vegetable Grade Magnesium 

Stearate (Lubricant).

Dietary Needs

Artificial Ingr. Free, Dairy Free, Egg Free, Gluten Free, No Shellfish, Soy Free, Sugar Free, Wheat Free, Yeast Free

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