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Natural Factors, Zymactive, Double Strength, 90 Enteric Coated Tablets

By Natural Factors

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  • Product Code: NFS-01750
  • UPC Code: 068958017501
  • Package Quantity: 90 Enteric Coated Tablets
  • Dimensions: 2.3 x 2.3 x 4.4 in, 0.25 lbs (0.11 kg)
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Product Overview

  • Dietary Supplement
  • With Serrata Peptidase Proteolytic Enzymes
  • Systemic Enzyme Support
  • Purity & Potency Guaranteed
  • Isura
  • Non-GMO · Mass Spec
  • Documentation - Lab Tested

Zymactive is an advanced formula that provides systemic enzyme support for the body's natural healthy inflammatory response and immune system. Zymactive supports muscle, joint, and overall tissue health.

Recommended by Dr. Michael Murray, one of the world's leading experts on natural medicine.

Also available in Regular Strength.

Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.

Suggested Use

1-2 tablets 2-3 times per day on an empty stomach with water or as directed by a health professional.

Other Ingredients

Microcrystalline cellulose, aqueous coating solution (purified water, ethylcellulose, medium chain triglycerides [coconut], oleic acid, carbohydrate gum [cellulose], glycerin, sodium alginate, stearic acid), croscarmellose sodium, magnesium stearate (vegetable grade).

Contains no artificial colors, preservatives, or sweeteners; no dairy, sugar, wheat, gluten, yeast, soy, egg, fish, shellfish, salt, or GMOs.


Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding or trying to conceive, or if you are taking medication, have a medical condition or anticipate a surgery. Keep out of the reach of children.

Sealed for your protection. Do not use if seal is broken. For freshness, store in a cool, dry place.

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Supplement Facts
Serving Size 2 Tablets
Servings Per Container: 45
  Amount Per Serving % Daily Value
Pancreatin 8X† 400 mg **
Papain 30,000 USP/mg 240 mg **
Serratia peptidase 200,000 SPU/g 104 mg **
Bromelain (Ananas comosus) (stem) 1,200 MCU/g 100 mg **
** Daily Value not established.
† 8x more concentrated than USP standards.
USP (United States Pharmacopeia), SPU (Specialty Peptidase Unit), MCU (Milk Clotting Unit).

iHerb Customer Reviews

5 Stars
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1 Stars

Was unsure....IMPORTANT

Posted by Reviewer2131791 on Nov 07, 2008

I found out about this product through Dr.Murray's newsletter and was hesitant at first. I am on my second bottle. I am hypothyroid and Zymactive just increases my level of activity to a newer level. It has helped me with my sinus issues and most recently mucus that my body could not shake off (allergy related). A family member of mine was recommended this product under a different brand for cardio health because she had high blood pressure. I take this empty stomach with Armour Thyroid. November 2008: I ordered this again realizing that for a while it did nothing....scratching my head I remembered that taking it with juice did the trick which is what the directions say 'water or juice'. So take it with juice - which is why the title of my review now says Important. Am taking extra doses now for tendonitis and let me tell you that I have very little pain and discomfort. The doc prescribed a brace and anti-inflamatory OTC products which of course I did not care for. Way to go Dr.Murray.

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19 people found the following review helpful

Great for sinus and mucus

Posted by Reviewer2095265 on Feb 12, 2007

I've taken many types of enzymes over the years for inflammation, but these are the best so far. Not only good for pain, but I've had great success using them between meals to reduce mucus and sinus inflammation.

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18 people found the following review helpful

Best Inflammation Fighter

Posted by Reviewer1818875 on Apr 08, 2009

I was lying in bed suffering with sciatic pain. Agonizing. I prayed to just be able to lie in a position other than on my back with a cushion under my legs. I've always been a side and stomach sleeper. Within days of starting on Zymactive, 3 pills, 3 times a day, I could sleep on my sides with little discomfort. I can now sleep on my stomach again with no cushions! After a week, I'm down to 2 a day and I'll see if things continue to work. Natural Factors does it again. I thank God.

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17 people found the following review helpful

Helps with inflammation!

Posted by Reviewer2680805 on Nov 18, 2009

After taking this for about a month I had blood work done to test for inflammation and it came back perfect!!!

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15 people found the following review helpful

Natural Factors, DOUBLE STRENGTH, ZYMACTIVE, 90 tablets

Posted by Reviewer2299345 on Jul 21, 2008

Michael Murray's DOUBLE STRENGTH PROTEOLYTIC ENZYMES have helped me tremendously. My left foot was partially numb due to inflammation in my spinal canal that was pressing against the nerve. (I have bone spurs in my canal and spinal stenosis). This product, along with GLUCOSOMINE CELADRIN MSM (Bluebonnet Nutrition), was highly recommended by someone who has the same condition as myself. He said that together they were extremely helpful in reducing his inflammation (the enzymes help reduce inflammatory conditions) and eleviating the pain. I've also found my food digests better with these than with the Pancreatin I usually take with meals. I won't need to buy the Pancreatin any longer - which is a good thing because I can alleviate that expense. Michael Murray's enzymes are the best I've ever taken! I will continue to order them for as long as I'm able.

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15 people found the following review helpful

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