PlainVitamins

Cx8

by Xtendlife · capsule · 90 vege capsules

  • On the market (NIH)
  • UPC 9 421904 523173
  • DSLD label 318012
  • Serving 3 capsules
  • 30 servings

Cx8 by Xtendlife lists 11 ingredients, 11 with an amount per serving of 3 capsules, such as 25 mcg (1,000 IU) of vitamin D3, 180 mcg of vitamin K2, 630 mg of CardiOmegia and 500 mg of CyanthOx 30, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on October 24, 2024.

What is in Cx8?

Each row as the label prints it, per serving of 3 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).

Cx8: Supplement Facts rows against the market (DSLD label 318012, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories10 Calories
Total Carbohydrates1 g1%Carbohydrate in CX8 against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g).

Vitamin D3as Cholecalciferol1000 IU25 mcg (1,000 IU)125%Vitamin D in CX8 against 14,175 products25 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg25 mcg

Higher than 59% of 14,175 products listing vitamin D (median 15 mcg).

Vitamin K2as Mena Q7 Puremicro-encapsulated Menaquinone-7180 mcg150%Vitamin K in CX8 against 4,607 products180 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg180 mcg

Higher than 90% of 4,607 products listing vitamin K (median 80 mcg).

CardiOmegiaas Sea Buckthorn Fruit Extract630 mgSea Buckthorn in CX8 against 70 products1,130 mg per serving; the middle half of products list 100 mg to 500 mg, the median 225 mg.1,130 mg

Higher than 91% of 70 products listing sea buckthorn (median 225 mg).

Omega-714%88 mgOmega-7 in CX8 against 72 products88 mg per serving; the middle half of products list 35 mg to 220 mg, the median 117 mg.88 mg

57% of 72 products listing omega-7 give more (median 117 mg).

CyanthOx 30as Sea Buckthorn Fruit Extract500 mg
Proanthocyandins30%150 mgProanthocyanidins in CX8 against 164 products150 mg per serving; the middle half of products list 12.5 mg to 95 mg, the median 36 mg.150 mg

Higher than 87% of 164 products listing proanthocyanidins (median 36 mg).

DeltaGold Tocotrienol Complex250 mg
Tocotrienols30%75 mg500%*
Rutinas Japanese Sophora100 mgRutin in CX8 against 1,232 products100 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.100 mg

Higher than 84% of 1,232 products listing rutin (median 25 mg).

Nattozimesas Proteaseproviding 4,000 fibrinolytic units (FU)115 mgNattokinase in CX8 against 141 products115 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.115 mg

Higher than 87% of 141 products listing nattokinase (median 100 mg).

Oxi-fendas Black Currant Fruit Extract50 mgBlack Currant in CX8 against 97 products50 mg per serving; the middle half of products list 40 mg to 250 mg, the median 50 mg.50 mg

47% of 97 products listing black currant give more (median 50 mg).

Polyphenol20%10 mgPolyphenols in CX8 against 249 products10 mg per serving; the middle half of products list 19.5 mg to 180 mg, the median 80 mg.10 mg

80% of 249 products listing polyphenols give more (median 80 mg).

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 318012 (entered October 24, 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?

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 1,130 mg of CardiOmegia (filed by NIH under sea buckthorn) (2 rows of the label added together) is higher than 91% of the 70 sea buckthorn products that print an amount; 5 list more.

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.

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
Directions for use Adults: Take 3 capsules per day. For optimal results take at least 1 hour before or after a meal.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 318012.

What else is on the label?

Other ingredients: Hydroxypropylmethylcellulose, Water, Maltodextrin, Starch.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): NewZealand.com Licence No.100055; Best Quality Guarantee.

How many labels does Cx8 have?

2 labels are on file under this name since March 22, 2023: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 318012 (current) Entered October 24, 2024 · on the market · 90 vege capsules · UPC 9 421904 523173
  2. Label 283355 Entered March 22, 2023 · on the market · 90 vegetarian capsules · UPC 9 421904 523173

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

Who makes it?

The label names Natural Products (NZ) LTD Member of the Xtend-Life Group (manufacturer), Christchurch, New Zealand. All Xtendlife products.

Where next?