Serracor-NK

by AST Enzymes · capsule · 300 vegetarian capsules

  • On the market (NIH)
  • UPC 8 50213 00204 5
  • DSLD label 338356
  • Serving 1 to 3 capsules; amounts per 1 capsule
  • 300 servings

Serracor-NK by AST Enzymes lists 10 ingredients; 10 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.

What is in Serracor-NK?

Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Serracor-NK: Supplement Facts rows against the market (DSLD label 338356, January 2026 release)
IngredientAmount% DVAmong products listing it
Serracor-NK Blend500 mg
SEBkinase Blendin the blend, no amount given
Peptizyme SP ENas Serrapeptaseacid-resistantin the blend, no amount given
Nattokinaseacid-resistantin the blend, no amount given
Enzyme and Cofactor Blendin the blend, no amount given
Bromelainin the blend, no amount given
Papainin the blend, no amount given
Lipasein the blend, no amount given
Proteasesin the blend, no amount given
Rutinin the blend, no amount given
Amlain the blend, no amount given
Coenzyme Q-10in the blend, no amount given
Magnesiumin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 338356 (entered September 25, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 10 ingredients sit inside a blend, so their amounts cannot be compared.

The NIH database records 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

2 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: Take with a large glass of water. Maintenance: 1-2 capsules, 3 times a day. Therapeutic: 3 capsules, 3 times a day. Must be taken on an empty stomach (30 minutes before or 2 hours after meals).
Warnings
Keep out of reach of children.
Caution: If taking anticoagulant drugs, do not use this product before consulting your physician. Consult your doctor before use if pregnant, nursing, or taking medicaiton.
Discontinue if adverse conditions occur.
Free of: What, egg, milk, soy, tree nuts, peanuts, fish, shellfish and sesame. Manufactured in cGMP facilities that also process wheat, milk, eggs, and soy.
Allergens and what it does not contain
Free of: What, egg, milk, soy, tree nuts, peanuts, fish, shellfish and sesame.
Storage
Storage: Closed in a cool, dry place. Avoid excessive heat.

Source: label statements in DSLD label 338356.

What else is on the label?

Other ingredients: Cellulose, Maltodextrin, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): BPPS Technology Laboratory Tested.

How many labels does Serracor-NK have?

One label is on file, entered on September 25, 2025.

  1. Label 338356 (current) Entered September 25, 2025 · on the market · 300 vegetarian capsules · UPC 8 50213 00204 5

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names AST Enzymes (manufacturer), Chino, CA. All AST Enzymes products.

Where next?