Flexcin

by Flexcin International · capsule · 120 capsules

  • On the market (NIH)
  • UPC 8 96498 0004 8
  • DSLD label 271213
  • Serving 4 capsules
  • 30 servings

Flexcin by Flexcin International lists 16 ingredients, 5 with an amount per serving of 4 capsules, such as 100 mg of vitamin C, 20 mg of calcium citrate, powder, 11.3 mg of zinc amino acid chelate and 3 mg of copper chelate; 11 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2022.

What is in Flexcin?

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).

Flexcin: Supplement Facts rows against the market (DSLD label 271213, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid100 mg167%Vitamin C in Flexcin 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).

Calcium Citrate, Powder20 mg1%

The label names the compound (Calcium Citrate, Powder); its amount is likely the compound's weight, not the calcium it holds, so it is not placed among other products.

Zinc Amino Acid Chelate20%11.3 mg1%

The label names the compound (Zinc Amino Acid Chelate); its amount is likely the compound's weight, not the zinc it holds, so it is not placed among other products.

Copper Chelate10%3 mg1%

The label names the compound (Copper Chelate); its amount is likely the compound's weight, not the copper it holds, so it is not placed among other products.

Manganese Chelate20%5 mg50%

The label names the compound (Manganese Chelate); its amount is likely the compound's weight, not the manganese it holds, so it is not placed among other products.

Proprietary Blend2,317 mg
Cetyl Myristoleatein the blend, no amount given
Glucosamine Sulfate Potassiumin the blend, no amount given
Collagen Type IIin the blend, no amount given
Methylsulfonylmethanein the blend, no amount given
Peppermint leaf powderin the blend, no amount given
Bromelainin the blend, no amount given
Proteasein the blend, no amount given
Amylasein the blend, no amount given
Cellulasein the blend, no amount given
Invertasein the blend, no amount given
Lipasein the blend, no amount given
Boorganic Complexin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 271213 (entered August 23, 2022), 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; 11 ingredients sit inside a blend, so their amounts cannot be compared.

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 Flexcin'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
Take one serving of 4 capsules daily with a glass of water and/or a meal or 2 capsules in the morning and 2 capsules in the evening. Persons with severe joint conditions may increase the dosage to 1 1/2 servings (6 capsules) daily for the first 2 weeks or until joint condition improves then resume back to the regular serving size of 4 capsules a day.
Warnings
Keep out of reach of children
Do not use if pregnant or nursing
Do not use if tamper evident safety neck seal is broken or missing
Allergens and what it does not contain
Contains no: Gluten, sugar, dairy products, yeast, wheat, artificial color, artificial flavoring or preservatives. GMO free
Storage
Protect from light, heat & moisture Store in a cool, dry place

Source: label statements in DSLD label 271213.

What else is on the label?

Other ingredients: Magnesium Stearate, Maltodextrin, Silica, Vegetable capsule.

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

How many labels does Flexcin have?

One label is on file, entered on August 23, 2022.

  1. Label 271213 (current) Entered August 23, 2022 · on the market · 120 capsules · UPC 8 96498 0004 8

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

Who makes it?

The label names Flexcin International, Inc. (distributor), Cape Coral, FL. All Flexcin International products.

Where next?