BioStacks
Life Extension

Super K

1 Softgel · 90 servings

iHerbAmazon
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What it does

A combination of 2 label ingredients.

Vitamin C

ascorbyl palmitateBudget

Supports normal collagen production and immune function, and helps the body absorb iron from plant foods.

Vitamin K

Mixed formsGrade —

Supports normal blood clotting and activates proteins involved in maintaining bones.

General Health
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Ingredients (5)

Other ingredients

BeeswaxCoating

Natural wax produced by honeybees, used as a coating and binding agent in softgels and tablets

CarobFlavor

Roasted powder from carob tree pods, used as a caffeine-free chocolate/cocoa substitute for flavor and brown color

Extra Virgin Olive OilCarrier

Cold-pressed olive oil used as a carrier and filler in softgel capsules for fat-soluble nutrients

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

Lab testing

How to take it

With a meal containing fat

On the label

Take one (1) softgel daily with food, or as recommended by a healthcare practitioner

Price check

$20.27

$0.23 / serving

$10$20$50

Near the median of 375 vitamin C supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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