Allergy Research Group

Nattokinase Circulatory Systemic Enzymes, 180 Softgels

180 Softgels · Preferred Brand

4.6 across 6 sources

May be a fit for

  • Adults seeking nattokinase support for healthy circulation and blood flow
  • Individuals looking to maintain normal fibrinolytic enzyme activity systemically
  • Practitioners protocols requiring enteric-stable nattokinase in softgel delivery form
$118.99

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SoftgelsFormat
180 SoftgelsPack size
The essentials

A closer look.

Allergy Research Group's Nattokinase Circulatory Systemic Enzymes delivers nattokinase, a serine protease enzyme derived from fermented natto, in softgel form to support healthy circulation and normal fibrinolytic activity. Formulated for adults seeking to maintain cardiovascular and circulatory wellness through targeted enzyme supplementation.

Why It's Worth Considering: Allergy Research Group is a practitioner-grade brand with a longstanding focus on hypoallergenic, rigorously sourced ingredients; the softgel format supports consistent enzyme delivery in a 180-count supply suited to ongoing use.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

89OUT OF 100
Manufacturing7373
Lab verification7878
Transparency6565

Our score is an editorial assessment, not a product certification or a guarantee of results.

Allergy Research Group - Nattokinase Circulatory Systemic Enzymes, 180 SoftgelsAllergy Research Group · 180 Softgels
Make it part of your day

Make it part of your routine.

Take 1 softgel twice daily as an initial dose, or as directed by a healthcare practitioner. May be taken with or without food. Take with 8–10 ounces of water.

Important cautions & interactions
Contains soy. If pregnant or lactating, if you have any health condition, or if taking medication, consult your healthcare practitioner. Use under medical supervision with anticoagulant drugs. Do not use with any condition associated with bleeding. Keep out of reach of children and store in a cool, dry place away from light.
Read the complete label
Inside the formula

Product details

Supplement facts & complete label

Supplement Facts — Serving size: 1 softgel.
Nattokinase NSK-SD® (soy), 2,000 FU: 100 mg.
Other ingredients: soybean oil, gelatin, glycerin, soybean lecithin, glycerin fatty-acid ester, beeswax. Servings per container: 180.

Label directions

Take 1 softgel twice daily as an initial dose, or as directed by a healthcare practitioner. May be taken with or without food. Take with 8–10 ounces of water.

Label cautions

Contains soy. If pregnant or lactating, if you have any health condition, or if taking medication, consult your healthcare practitioner. Use under medical supervision with anticoagulant drugs. Do not use with any condition associated with bleeding. Keep out of reach of children and store in a cool, dry place away from light.

Source: authorized supplier exact-SKU catalog label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.

Who it may suit

May be a fit for

  • Adults seeking nattokinase support for healthy circulation and blood flow
  • Individuals looking to maintain normal fibrinolytic enzyme activity systemically
  • Practitioners protocols requiring enteric-stable nattokinase in softgel delivery form
  • Those supporting cardiovascular wellness with a nattokinase-based enzyme formula

Considerations

  • Active stomach or duodenal ulcers (especially betaine HCl)
  • Taking blood thinners (some enzymes have mild anti-platelet activity)
  • Active pancreatitis
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From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.6/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

3146 product and brand ratings and mentions across 6 sources.

Explore the source sentiment summary

Strongly positive consensus on cardiovascular benefits, with minority caution around clot relocation and gut lining risks.

This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.

Good to know

A few useful answers.

Research & further reading

More category questions

When should I take digestive enzymes?

Take immediately before or with the first bites of your meal. Enzymes need to be in the stomach when food arrives. Taking them after eating is less effective. For best results, take with every substantial meal — especially meals high in fat, protein, or hard-to-digest foods.

Do I need enzymes if I take probiotics?

They serve different functions. Enzymes physically break down food into absorbable nutrients. Probiotics are living bacteria that optimize the gut microbiome, produce vitamins, and support immune function. Many gut issues benefit from both — especially after age 40 when natural enzyme production declines.

Can I become dependent on digestive enzymes?

No. Digestive enzymes do not cause your body to produce fewer of its own enzymes. They supplement what your body is already making (or under-making). You can stop taking them anytime without withdrawal or rebound. If your symptoms return after stopping, it means you still need the support — not that you've become dependent.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Allergy Research Group - Nattokinase Circulatory Systemic Enzymes, 180 Softgels Allergy Research Group

Apotheca quality score

89/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing7373
Lab verification7878
Review consensus100.0100.0
Practitioner signals54.054.0
Community signals6363
Transparency6565
See available brand signals
✗
Third-party lab testing0/10
✓
GMP manufacturing standards7/10
△
Ingredient quality & sourcing8/20
✗
Clinical evidence backing0/15
✓
FDA regulatory compliance10/10
✗
Dosing consistency0/10
✗
Brand reputation & trust0/10
✗
Community & practitioner signal0/15

Our score is an editorial assessment, not a product certification or a guarantee of results.

How our scoring works ↗