PlainVitamins

Joint Again

by Guardian Health · tablet or pill · 120 tablets

  • On the market (NIH)
  • UPC 8 18174 02023 2
  • DSLD label 299119
  • Serving 1 tablet
  • 120 servings

Joint Again by Guardian Health lists 4 ingredients, 4 with an amount per serving of 1 tablet, such as 100 mg of vitamin C, 1,000 mg of glucosamine hydrochloride, 50 mg of boswellia resin extract and 15 mg of turmeric root extract. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2023.

What is in Joint Again?

Each row as the label prints it, per serving of 1 tablet. 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).

Joint Again: Supplement Facts rows against the market (DSLD label 299119, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid100 mg111%Vitamin C in Joint Again against 18,583 products100 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg100 mg

50% of 18,583 products listing vitamin C give more (median 100 mg).

Glucosamine Hydrochloride1,000 mgGlucosamine Hydrochloride in Joint Again against 628 products1 g per serving; the middle half of products list 0.75 g to 1.5 g, the median 1.5 g.1 g

62% of 628 products listing glucosamine hydrochloride give more (median 1.5 g).

Boswellia Resin Extractas Boswellia serrata Resin ExtractNLT 55% boswellic acid50 mgBoswellia in Joint Again against 665 products50 mg per serving; the middle half of products list 100 mg to 290 mg, the median 135 mg.50 mg

86% of 665 products listing boswellia give more (median 135 mg).

Turmeric Root Extractas CurcuminNLT 95% curcumins15 mgTurmeric in Joint Again against 2,369 products15 mg per serving; the middle half of products list 50 mg to 500 mg, the median 150 mg.15 mg

92% of 2,369 products listing turmeric give more (median 150 mg).

Source: NIH ODS Dietary Supplement Label Database, label 299119 (entered November 22, 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?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 86% of the 665 products that print an amount of boswellia list more than its 50 mg of boswellia (median 135 mg).
  • 92% of the 2,369 products that print an amount of turmeric list more than its 15 mg of turmeric (median 150 mg).

The NIH database records one serving 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 Joint Again'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 tablet after meal, once a day.
Warnings
Keep out of reach of children.
Warning: If you are pregnant, lactating, or have serious medical condition, you should not use this product before consulting a physician.
Caution: Contains shellfish
Storage
Store in a cool dry place below 30 degrees C (86 degrees F) and avoid exposure to sunlight.

Source: label statements in DSLD label 299119.

What else is on the label?

Other ingredients: Hydroxypropyl Cellulose, Microcrystalline Cellulose, Stearic Acid, Hydroxypropyl Methylcellulose, Silicon Dioxide, Croscarmellose Sodium, Magnesium Stearate, Micro Wax, Food Glaze, Maltodextrin, Water.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made In USA With Globally Sourced Ingredients.

How many labels does Joint Again have?

One label is on file, entered on November 22, 2023.

  1. Label 299119 (current) Entered November 22, 2023 · on the market · 120 tablets · UPC 8 18174 02023 2

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

Who makes it?

The label names Guardian Health, Inc. (distributor), City of Industry, CA. All Guardian Health products.

Where next?