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(39 customer reviews)


Premium Systemic Enzyme Formula | Circulatory and Respiratory Support

  • Heart and Circulatory Health*
  • Respiratory Health*
  • Fibrin Metabolism*
  • Normal Blood Viscosity*
  • Healthy Blood Pressure*
  • Healthy Response to Inflammation*



Serracor-NK is a carefully formulated, comprehensive systemic enzyme blend designed to support maximum circulatory, respiratory and fibrotic health. Serracor-NK contains the dual-action formula SEBkinase®, a combination of two potent fibrinolytic enzymes which have powerful synergistic effects.  A carefully selected palette of additional enzymes, herbs and minerals enhance SEBkinase to create a highly effective new formula.

Why Take Fibrinolytic Enzymes?

Fibrin is important. Your body naturally produces fibrin in response to injury or trauma.  Imagine you scrape your knee – your body immediately produces a clot and a thread-like protein called fibrin forms a structure in that clot to hold it in place.  This acts as a natural bandage as the body heals.  Like that scab on your knee, your body uses fibrin to repair internal injuries as well.

But too much fibrin can do more harm than good. It can accelerate scarring, leading to chronic inflammation, pain, and unsightly blemishes.  More seriously, excess fibrin can increase clot formation and impede normal blood flow, which can lead to more serious fibrotic conditions or cardiovascular events.

Maintaining healthy fibrin metabolism is essential.  Serracor-NK supports normal fibrin levels, blood viscosity, overall blood circulation and a healthy inflammation response.*

How Enteric Coating Makes Serracor-NK Uniquely Effective

Our enteric coated Peptizyme SP® EN makes Serracor-NK unique. If serrapeptase is not enteric coated, the acidic environment of the stomach will destroy its potency. Other companies do not have enteric coated serrapeptase. They try and make up for it by selling higher and higher potencies, which ultimately still do not work.  Our cutting-edge enteric coating maximizes serrapeptase potency through the stomach and delivers it into the small intestine, where it is most needed.*

What’s In Serracor-NK?

  • Peptizyme SP® EN (the enteric coated serrapeptase in SEBkinase): known for its beneficial immune cell response. It was first found in silkworms, which used serrapeptase to dissolve their tough fibrous cocoons.
  • NattoSEB® (the nattokinase in SEBkinase): the active ingredient in an old Japanese folk remedy for cardiovascular support.
  • Bromelain and Papain, known for their immune support properties
  • Lipase to break down fats into essential fatty acids needed for healthy circulation
  • Rutin for antioxidant support
  • Amla a strong source of Vitamin C
  • CoQ10 as a cofactor in metabolism, and
  • Magnesium to boost SEBkinase performance and support cardiovascular and nerve health.*

A Safe and Natural Regimen

We believe in safety first!  Other companies merely buy and repackage someone else’s product.  But, as a true manufacturer, we control safety from the beginning.

We can certify that Serracor-NK is free of pesticides, chemicals, preservatives, animal derivatives, egg, milk, soy, wheat, peanuts, tree nuts, fish and shellfish. All its enzyme ingredients are kosher-certified, and suitable for vegetarians and vegans.  Serracor-NK is manufactured in the USA and follows cGMP guidelines.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Results may vary.  Copyright © 2020 Biomedic Labs.

All rights reserved. Terms & Conditions

Supplement Facts

Serving Size: 1 Capsules
Servings Per Container: 150 or 300
Amount Per Serving: %DV
Serracor-NK® Blend 500mg**

SEBkinase® Blend: 15,000 FU
Enteric coated Serrapeptase (Peptizyme SP® EN) & Nattokinase (NattoSEB®)
Enzyme & Cofactor Blend: Bromelain, Papain, Lipase, Proteases, Rutin, Amla, Coenzymes Q10 & Magnesium
*Daily Value (DV) not established
Other ingredients: Cellulose (vegetarian capsule)

Directions: Take 1 to 2 capsules three times a day. In three days, if desired benefit is not achieved, increase to 2 to 3 capsules three times a day. Take capsules 30 to 60 minutes before or 2 hours after a meal with 8 oz. of water. Dosage can be increased or reduced as needed to achieve desired benefits.

Complementing your Serracor-NK with additional serrapeptase can increase fibrinolytic activity, as well as increase positive effects on blood pressure and inflammation, and reduce mucus viscosity in the respiratory system.* Serra RX80 contains 80,000 units of professional-strength serrapeptase per capsule.

Store in cool, dry place with the lid tightly closed. Avoid excessive heat. Keep out of the reach of children. Caution: If you are taking anticoagulants, like warfarin type drugs, do not take this without consulting your physician. If you are pregnant, nursing, taking any medication or under medical supervision, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. Not intended for use by persons under the age of 18.

This Product does not contain soy.

39 reviews for Serracor-NK®

  1. works better than steroids

    concerned wife

    My husband had an injury to his eye and the docs put him on steroids to try and get rid of swelling. But the side effects were not good. As soon as he would try and reduce the steroids, his eye would start to swell up again, so back to the steroids… not good.
    In desperation, I took matters into my own hands and did quite a bit of research and found this product. It worked ! I got my husband off steroids, and, along with other supplements, got his eye healed, and away from the dangerous meds. Thank you so much for this product!!

  2. I can't believe this exists!

    Catherine J

    I have been struggling with Psoriatic arthritis among other issues for over 13 years. I have lung nodules and decrease in o2 sats. I was having infusions every 8 weeks, which made my immune system so low, I would catch every sickness. I decided to come off of everything and try Serracor-NK and Serra Rx 260 2 months ago. It took about 2 weeks to fully feel the effects. I breath much better, my scar tissue is decreasing from all the surgeries I have had and most of all I am in minimal pain throughout the day where I only need to supplement with one pain med. This is amazing , I am ordering moreand going to try other products as well! Thank you Thankyou

  3. Avoid Surgery

    John Tammaro

    this supplement was key to my avoiding carotid artery surgery

  4. Great product


    I take these to thin my blood to help reduce my blood pressure. I never knew until recently that blood viscosity is a big factor in high blood pressure. They are working, and as a by-product make you feel good too! These enzymes work on so many different issues as a little research will show.

  5. very happy with this product


    This product has helped me with uterine fibroids and has also helped me maintain a healthy blood pressure. I am over 50 and pleased to say I do not take any prescription medications!! These are part of my healthy routine daily.

  6. Great help


    My husband, Jerry, has been diagnosed with Pulmonary Fibrosis and has received great help with this product!!

  7. Breathing is Better

    Christina Wolf

    After taking this product along with Serra RX260 for only 3 weeks, my father’s breathing is so much better and he is not coughing much at all. Before my father started taking these products, he had become so weak and tired from coughing so much and his breathing very labored due to pulmonary fibrosis. His breathing is so much better now and he is happy because he can stand up taking a shower rather than sitting down a lot and breathing so hard. These products are a Godsend to my father.

  8. Serracor has removed that plaque and there is no more murmur.

    Dan H

    I am currently taking 4 caps of Serracor 2X per day as recommended on the bottle.
    I have some arthritis that I think this helps with, but still deal with some pain.
    I had a calcium score test that showed a mild plaque buildup of 51.66 Total Agatston Score which is less than 25% rank of all people my age group. That test was run 9/18/2015. Of particular interest, when I saw my Cardiologist and Primary care physician the first of this year, neither of them could detect a heart murmur I have had for a number of years. In many cases, a murmur is due to plaque build up on the valve flapper. So, I can believe that the Serracor has removed that plaque and there is no more murmur.

  9. Reducing Keloid Scar and Abdominal Adhesions


    I have been using Serracor NK with Serra Rx 260 for 7 weeks. I am taking it to reduce the appearance of my external scar which keloid and abdominal adhesions from 4 repeat C-Sections. My external scar has keloid quite a bit after each baby. During my last two C-Sections, the dr discovered abdominal adhesions which affected my uterus and bladder. I did some research on options to reduce and possibly eliminate the scaring and came across this product. I decided to try it since it seemed like a generally risk free option as opposed to surgery. I started taking 3 Serracor NK morning, noon and night with 2 SerraRx morning and night. After 2-3 weeks I noticed very slight changes to my external scar so I decided to add another SerraRx to my afternoon dose. Within 1 week of taking that extra one I noticed it was changing more rapidly. Now my scar is lighter in color, thinner, flatter and smoother. It has worked from the ends of the scar in as far as thinning it. So far I have been extremely happy with this product and the results. I will continue taking them until my external scar seems to be minimal and then I will look into seeing what it has done internally. With no noticeable negative side effects, I would definitely recommend giving this product a try if you are in a similar situation with scarring.

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