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Ubiquinol

Ubiquinol suppliers and sourcing guide

Ubiquinol is the reduced form of coenzyme Q10, made commercially by chemically reducing CoQ10 (usually from fermentation) and then isolating it under conditions that keep oxygen out. It converts back to ubiquinone when exposed to air, heat or light, so it is supplied mainly as crystalline ubiquinol packed under inert gas or already dispersed in oil for softgels. Brands usually buy it as a softgel-ready concentrate or a stabilized powder from a small number of producers.

Also known as
Reduced coenzyme Q10 · Ubiquinol-10 · Reduced CoQ10
Facts checked
November 2026

Forms and grades of ubiquinol

Suppliers sell different products under the same name. Specify the one you need.

  • Crystalline ubiquinol

    Pure ubiquinol powder shipped in nitrogen-flushed, light-proof packaging, mostly used by softgel makers who blend it into oil themselves.

  • Oil-based concentrate

    Ubiquinol pre-dissolved in a carrier oil, sometimes with a stabilizer, ready for softgel encapsulation.

  • Stabilized powder

    Ubiquinol encapsulated or coated with carriers for capsules and tablets; the coating limits contact with oxygen and lowers the ubiquinol percentage per gram.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Ubiquinol assay (HPLC)
Ubiquinol content by HPLC, often with electrochemical or UV detection; the method has to keep the sample from oxidizing during the test, so ask which method is used.
Ubiquinone content
Oxidized CoQ10 reported separately, since it rises when material has been exposed to air or stored warm.
Identity
HPLC retention time or IR compared with a reference standard.
Residual solvents
Solvents from the reduction and crystallization steps, against USP <467> or the buyer's limits.
Heavy metals
Lead, arsenic, cadmium and mercury by ICP-MS.
Microbiology
Total plate count, yeast and mold, and pathogens.

Storage, lots and expiry

Storage and shelf life

Keep ubiquinol in its original sealed, nitrogen-flushed and light-proof packaging, and follow the supplier's temperature instructions, which commonly call for cold storage. Once a container is opened, oxidation to ubiquinone starts, so use it quickly or reseal under inert gas. Shelf life is set by the supplier's specification and confirmed by retesting ubiquinol and ubiquinone content.

Lots and expiry dates

Record ubiquinol and ubiquinone results for each lot and recheck older or opened stock before use, because the ratio shifts with time and exposure. Rotate strictly first-expired, first-out.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Ubiquinol suppliers

Manufacturers and distributors whose own websites say they sell it.

  • Kaneka Nutrients

    Manufacturer · Pasadena, TX

    Sells it as Kaneka Ubiquinol

    Texas-based division of Kaneka North America that makes yeast-fermented CoQ10 in two forms, ubiquinol and ubiquinone, for supplement brands and formulators.

Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.

Frequently asked questions

What forms of ubiquinol can brands buy?

Common forms include crystalline ubiquinol, oil-based concentrate and stabilized powder. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for ubiquinol include?

Expect ubiquinol assay (HPLC), ubiquinone content, identity, residual solvents, heavy metals and microbiology, each with its method, specification and result for that lot.

How should ubiquinol be stored?

Keep ubiquinol in its original sealed, nitrogen-flushed and light-proof packaging, and follow the supplier's temperature instructions, which commonly call for cold storage. Once a container is opened, oxidation to ubiquinone starts, so use it quickly or reseal under inert gas. Shelf life is set by the supplier's specification and confirmed by retesting ubiquinol and ubiquinone content.

What is the regulatory status of ubiquinol?

Health Canada has a natural health product monograph for ubiquinol that lists it as a synthetic medicinal ingredient for oral use.

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