PlainVitamins

Endozin

by Klaire Labs · capsule · 60 vegetarian capsules

  • Off the market since February 2025 (NIH)
  • UPC 7 09616 01250 5
  • DSLD label 280451
  • Serving 1 capsule
  • 60 servings

Endozin by Klaire Labs lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 17 mg of zinc, 75 mg of zinc L-carnosine and 400 mg of L-glutamine. Its current label entered the NIH Dietary Supplement Label Database on January 23, 2023.

What is in Endozin?

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).

Endozin: Supplement Facts rows against the market (DSLD label 280451, January 2026 release)
IngredientAmount% DVAmong products listing it
Zincas Zinc L-Carnosineas Zinc L-carnosine complex17 mg113%Zinc in Endozin against 13,186 products17 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg17 mg

Higher than 79% of 13,186 products listing zinc (median 11 mg). Per day at the most servings: 34 mg.

Zinc L-Carnosineas Zinc L-carnosine complex75 mgZinc-l-Carnosine in Endozin against 36 products75 mg per serving; the middle half of products list 34.38 mg to 75 mg, the median 75 mg.75 mg

6% of 36 products listing zinc-l-carnosine give more (median 75 mg). Per day at the most servings: 150 mg.

L-GlutamineUSP400 mgGlutamine in Endozin against 1,850 products0.4 g per serving; the middle half of products list 0.356 g to 3 g, the median 1 g.0.4 g

74% of 1,850 products listing glutamine give more (median 1 g). Per day at the most servings: 0.8 g.

Source: NIH ODS Dietary Supplement Label Database, label 280451 (entered January 23, 2023), 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.

The NIH database records 2 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?

The products whose ingredient lists overlap most with Endozin's, rare ingredients counting for more.

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
Suggested Use: As a dietary supplement, take one capsule twice daily or as directed by a healthcare professional. Capsules may be pulled apart and nutrients taken separately.
Warnings
Do not use if full-bottle shrinkwrap is broken or missing.
Keep out of reach of children.
Allergens and what it does not contain
Free of the following common allergens: Milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat/gluten, corn, yeast and soybeans. Contains no artificial colors, flavors, or preservatives.
Storage
Store in a cool, dry place (59 degrees F - 85 degrees F) away from direct light.

Source: label statements in DSLD label 280451.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Water, L-Leucine, Cellulose.

How many labels does Endozin have?

2 labels are on file under this name since June 16, 2022: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 280451 (current) Entered January 23, 2023 · off the market February 18, 2025 · 60 vegetarian capsules · UPC 7 09616 01250 5
  2. Label 264867 Entered June 16, 2022 · off the market March 18, 2022 · 60 vegetarian capsules · UPC 7 09616 01250 5

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

Who makes it?

The label names ProThera, Inc. (manufacturer), Reno, NV. All Klaire Labs products.

Where next?