Extreme Flex
by KingFisher Media · capsule · 60 capsules
- On the market (NIH)
- DSLD label 42133
- Serving 2 capsules
- 30 servings
Extreme Flex by KingFisher Media lists 7 ingredients, 7 with an amount per serving of 2 capsules, such as 500 mg of perluxan(R) hops extract, 250 mg of regenasure, 125 mg of OptiMSM and 50 mg of turmipure(R). Its current label entered the NIH Dietary Supplement Label Database on February 25, 2015.
What is in Extreme Flex?
Each row as the label prints it, per serving of 2 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Perluxan(R) Hops extractas Alpha AcidsPerluxan(R) Hops extract (Form: 30% Alpha Acids) | 500 mg | Higher than 90% of 342 products listing hops (median 75 mg). | |
| BioCell Collagen II | 500 mg | ||
| Chondroitin Sulfate | 100 mg | 87% of 950 products listing chondroitin sulfate give more (median 400 mg). | |
| Hyaluronic Acid | 50 mg | 43% of 900 products listing hyaluronic acid give more (median 50 mg). | |
| Regenasure | 250 mg | 91% of 628 products listing glucosamine hydrochloride give more (median 1.5 g). | |
| OptiMSM | 125 mg | 76% of 1,454 products listing methylsulfonylmethane give more (median 500 mg). | |
| Turmipure(R)as Turmeric root extract | 50 mg | 71% of 2,369 products listing turmeric give more (median 150 mg). | |
| Uc-Ii(r)as undenatured Collagen Type IIUC-II(R) (Form: 25% undenatured Collagen Type II) | 20 mg | 97% of 199 products listing cartilage give more (median 100 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 42133 (entered February 25, 2015), 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?
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:
- Its 500 mg of perluxan(R) hops extract (filed by NIH under hops) is higher than 90% of the 342 hops products that print an amount; 24 list more.
- 87% of the 950 products that print an amount of chondroitin sulfate list more than its 100 mg of chondroitin sulfate (median 400 mg).
- 91% of the 628 products that print an amount of glucosamine hydrochloride list more than its 0.25 g of regenasure (filed by NIH under glucosamine hydrochloride) (median 1.5 g).
- 97% of the 199 products that print an amount of cartilage list more than its 20 mg of uc-ii(r) (filed by NIH under cartilage) (median 100 mg).
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 Extreme Flex's, rare ingredients counting for more.
- Joint Care SupremeViva Vitamins 5 shared, 71% alike
- Advanced Plus 1500 mg MSMSchiff Move Free · off the market 4 shared, 56% alike
- Triple Strength Glucosamine with Chondroitin & MSMWindmill 4 shared, 56% alike
- EverflexNature's Sunshine 4 shared, 56% alike
- Glucosamine, Chondroitin, MSM plus Hyaluronic AcidCalifornia Gold Nutrition 4 shared, 56% alike
- TriFlexGNC TriFlex 4 shared, 53% alike
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.
- Warnings
- PRECAUTIONS: Use only as directed.
- Do not take this product if you are pregnant or nursing. Consult a health care professional before use if you are allergic to any ingredients, have a serious medical condition, or use prescription medications.
- Consult a health care professional before use if you are allergic to any ingredients, have a serious medical condition, or use prescription medications.
- For adult use only.
- Storage
- USAGE: As a dietary supplement, Take one (1) serving (2) capsules daily. For temporary relief of minor pain: Take two (2) servings - (4) capsules daily.
Source: label statements in DSLD label 42133.
What else is on the label?
Other ingredients: Magnesium Stearate, FD&C Blue #1, FD&C Yellow #5, FD&C Yellow #6, Titanium Dioxide, Gelatin.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): UC-II(R); BioCell Collagen(TM); perluxan; Regenasure(R) GLUCOSAMINE; GOOD MANUFACTURING PRACTICE MANUFACTURED IN A GMP CERTIFIED FACILITY QUALITY GUARANTEED; kingfisher media.
How many labels does Extreme Flex have?
One label is on file, entered on February 25, 2015.
- Label 42133 (current) Entered February 25, 2015 · on the market · 60 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names KingFisher Media, LLC (distributor). All KingFisher Media products.