AR-Encap

by Thorne Research · capsule · 240 vegetarian capsules

  • Off the market since December 2017 (NIH)
  • UPC 6 93749 77402 0
  • DSLD label 81961
  • Serving 4 capsules
  • 60 servings

AR-Encap by Thorne Research lists 9 ingredients, 7 with an amount per serving of 4 capsules, such as 87 mg of chloride, 98 mg of potassium, 850 mg of methyl sulfonyl methane and 750 mg of glucosamine sulfate; 2 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on December 22, 2017.

What is in AR-Encap?

Each row as the label prints it, per serving of 4 capsules. 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).

AR-Encap: Supplement Facts rows against the market (DSLD label 81961, January 2026 release)
IngredientAmount% DVAmong products listing it
Chlorideas Glucosamine Sulfate Potassium Chloride ComplexChloride (Form: from Glucosamine Sulfate Potassium Chloride Complex)87 mg3%Chloride in AR-Encap against 1,476 products87 mg per serving; the middle half of products list 60 mg to 183.5 mg, the median 75 mg.DV 2,300 mgUL 3,600 mg87 mg

Higher than 56% of 1,476 products listing chloride (median 75 mg). Per day at the most servings: 174 mg.

Potassiumas Glucosamine Sulfate Potassium Chloride ComplexPotassium (Form: from Glucosamine Sulfate Potassium Chloride Complex)98 mg3%Potassium in AR-Encap against 11,614 products98 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg98 mg

54% of 11,614 products listing potassium give more (median 99 mg). Per day at the most servings: 196 mg.

Methyl Sulfonyl Methane850 mgMethylsulfonylmethane in AR-Encap against 1,454 products850 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.850 mg

Higher than 72% of 1,454 products listing methylsulfonylmethane (median 500 mg). Per day at the most servings: 1,700 mg.

Glucosamine Sulfateas Glucosamine Sulfate Potassium Chloride ComplexGlucosamine Sulfate (Form: as Glucosamine Sulfate Potassium Chloride Complex)750 mgGlucosamine Sulfate in AR-Encap against 875 products0.75 g per serving; the middle half of products list 0.5 g to 1.5 g, the median 1 g.0.75 g

53% of 875 products listing glucosamine sulfate give more (median 1 g). Per day at the most servings: 1.5 g.

Indian Frankincense extract350 mgBoswellia in AR-Encap against 665 products350 mg per serving; the middle half of products list 100 mg to 290 mg, the median 135 mg.350 mg

Higher than 83% of 665 products listing boswellia (median 135 mg). Per day at the most servings: 700 mg.

Curcumin Phytosome Complex250 mgCurcumin in AR-Encap against 550 products250 mg per serving; the middle half of products list 50 mg to 400 mg, the median 200 mg.250 mg

Higher than 59% of 550 products listing curcumin (median 200 mg). Per day at the most servings: 500 mg.

Curcuma longa extractno amount given
Phospholipidas SunflowerPhospholipid (Form: from Sunflower)no amount given
Bromelainas PineappleBromelain (Form: is derived from the Pineapple PlantPart: plant Genus: Ananas Species: comosus)200 mgBromelain in AR-Encap against 1,337 products200 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.200 mg

Higher than 73% of 1,337 products listing bromelain (median 50 mg). Per day at the most servings: 400 mg.

Source: NIH ODS Dietary Supplement Label Database, label 81961 (entered December 22, 2017), version 9.4.0. See the label on DSLD. 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; 2 ingredients sit inside a blend, so their amounts cannot be compared.

The NIH database records 1 to 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 AR-Encap'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: Take 4 capsules one to two times daily or as recommended by your health-care practitioner.
Warnings
Contains ingredients derived from shellfish (glucosamine sulfate = crab and/or shrimp).
Tamper Evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Storage
Store tightly sealed in a cool, dry place.

Source: label statements in DSLD label 81961.

What else is on the label?

Other ingredients: Hypromellose (derived from Cellulose) Capsule, Leucine, Silicon Dioxide.

How many labels does AR-Encap have?

3 labels are on file under this name since December 21, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 81961 (current) Entered December 22, 2017 · off the market December 14, 2017 · 240 vegetarian capsules · UPC 6 93749 77402 0
  2. Label 63761 Entered August 24, 2016 · off the market July 25, 2017 · 240 vegetarian capsules · UPC 6 93749 77402 0
  3. Label 16094 Entered December 21, 2012 · off the market January 15, 2016 · 240 vegetarian capsules · UPC 6 93749 77402 0

DSLD also links this label to: AR-Encap (image difference, same product), AR-Encap (image difference, same product), Joint Support Nutrients (image difference, same product), Joint Support Nutrients (image difference, same product).

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

Who makes it?

The label names Thorne Research, Inc. (manufacturer), Dover, Idaho. All Thorne Research products.

Where next?