PlainVitamins

AlphaSorb-C 500

by NOW · capsule · 180 veg capsules

  • On the market (NIH)
  • UPC 7 33739 00717 9
  • DSLD label 313561
  • Serving 1 veg capsule
  • 180 servings

AlphaSorb-C 500 by NOW lists 8 ingredients, 7 with an amount per serving of 1 veg capsule, such as 500 mg of vitamin C, 60 mg of calcium, 100 mg of citrus bioflavonoid complex and 25 mg of acerola, powder; 1 sits inside a blend without its own amount. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2024.

What is in AlphaSorb-C 500?

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

AlphaSorb-C 500: Supplement Facts rows against the market (DSLD label 313561, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Threonic Acidfrom Threonic Acid enhanced buffered Calcium Ascorbate500 mg556%Vitamin C in AlphaSorb-C 500 against 18,583 products500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg500 mg

Higher than 81% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 1,500 mg.

Calciumas Calcium AscorbateCalcium (Form: from buffered Calcium Ascorbate)60 mg5%Calcium in AlphaSorb-C 500 against 17,831 products60 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg60 mg

68% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 180 mg.

Transport C-PLUSTransport C-PLUS Note: trademarked blend of650 mg
Threonic Acid enhanced buffered Calcium Ascorbatein the blend, no amount given
Alpha Lipoic Acidin the blend, no amount given
Alpha Lipoic Acid40 mg
Citrus Bioflavonoid Complex100 mgFlavonoid in AlphaSorb-C 500 against 2,343 products100 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.100 mg

Higher than 62% of 2,343 products listing flavonoid (median 50 mg). Per day at the most servings: 300 mg.

Acerola, Powderas Malpighia punicifolia, Powder25 mgAcerola in AlphaSorb-C 500 against 436 products25 mg per serving; the middle half of products list 14.5 mg to 300 mg, the median 60 mg.25 mg

66% of 436 products listing acerola give more (median 60 mg). Per day at the most servings: 75 mg.

Rose Hips, Powderas Rosa canina, Powder25 mgDog Rose in AlphaSorb-C 500 against 397 products25 mg per serving; the middle half of products list 10 mg to 65 mg, the median 25 mg.25 mg

44% of 397 products listing dog rose give more (median 25 mg). Per day at the most servings: 75 mg.

Rutin, Powderas Sophora japonica25 mgRutin in AlphaSorb-C 500 against 1,232 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

37% of 1,232 products listing rutin give more (median 25 mg). Per day at the most servings: 75 mg.

Source: NIH ODS Dietary Supplement Label Database, label 313561 (entered July 25, 2024), 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; 1 ingredient sits inside a blend, so their amounts cannot be compared.

The NIH database records 1 to 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?

4 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
Suggested Usage: Take 1 capsule 1 to 3 times daily, preferably with food.
Warnings
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-GMO
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 313561.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, Stearic Acid, Magnesium Stearate, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Crescent H Halal; Triangle K (Kosher); GMP Quality Assured.

How many labels does AlphaSorb-C 500 have?

9 labels are on file under this name since October 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 313561 (current) Entered July 25, 2024 · on the market · 180 veg capsules · UPC 7 33739 00717 9
  2. Label 70273 Entered February 24, 2017 · off the market February 12, 2024 · 180 veg capsules · UPC 7 33739 00717 9
  3. Label 70272 Entered January 25, 2017 · on the market · 90 veg capsules · UPC 7 33739 00716 2
  4. Label 49871 Entered August 25, 2015 · off the market November 30, 2016 · 180 veg capsules · UPC 7 33739 00717 9
  5. Label 48134 Entered August 25, 2015 · off the market November 30, 2016 · 90 veg capsules · UPC 7 33739 00716 2
  6. Label 35358 Entered July 25, 2014 · off the market July 21, 2015 · 180 veg capsules · UPC 7 33739 00717 9
  7. Label 35357 Entered July 25, 2014 · off the market June 30, 2015 · 90 veg capsules · UPC 7 33739 00716 2
  8. Label 14456 Entered October 25, 2012 · off the market January 8, 2014 · 180 veg capsules · UPC 7 33739 00717 9
  9. Label 14452 Entered October 25, 2012 · off the market January 8, 2014 · 90 veg capsules · UPC 7 33739 00716 2

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

Who makes it?

The label names NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.

Where next?