Coenzyme Q10

Coenzyme Q10 is a fat-soluble molecule involved in cellular energy production and antioxidant activity. In skincare, you will find it under the name Ubiquinone.^[1] I see it as a supporting ingredient worth understanding before you decide whether you need another product.

What Ubiquinone means on the label

Ubiquinone and Ubiquinol are the oxidised and reduced forms of coenzyme Q10. The body uses this reversible chemistry in its energy and antioxidant systems.^[1] A cream labelled “Q10” and an ingredient list saying “Ubiquinone” are therefore not telling two different stories.

The label gives you an ingredient name. It does not tell you how much reaches your skin or whether that particular cream has been tested for the result you want. Those questions need evidence about the finished formula.

What the 2015 study measured

Researchers tested two Q10-containing formulas on forearm skin for 14 days. In samples from 73 volunteers aged 20 to 66, they measured higher Q10 levels on the surface and within the epidermis compared with untreated areas.^[1] This is evidence that the tested products delivered Q10 into the skin, rather than leaving all of it sitting on top.

The researchers also measured antioxidant effects in a subgroup of 16 participants whose untreated samples showed elevated oxidative stress. A separate experiment used cultured skin cells to examine energy metabolism.^[1] A cell experiment and a measurement from human skin answer different questions; neither is a photograph showing a wrinkle has disappeared.

All authors listed a Beiersdorf research affiliation.^[1] That does not cancel the measurements, but it is useful context when reading research about cosmetic formulas. I would not turn the findings into a promise for every Q10 serum on a shelf.

How much does that tell us about wrinkles?

A 2024 review discusses studies of topical Q10 and reports improvements in wrinkles with particular products. Several authors worked for Beiersdorf, and some clinical results in the paper come from unpublished manufacturer reports.^[2] The review is a useful overview, but those details matter when you weigh the strength and independence of its conclusions.

The practical distinction is between evidence that an ingredient reaches skin and evidence that a particular product makes a visible difference. One can support the other without making them interchangeable. If a brand advertises a percentage reduction in wrinkles, look for the product tested, the comparison group and the study duration.

For a broader view of routine choices, see the guide to signs of ageing. If you are comparing ingredients, vitamin E has its own evidence and limitations. You do not need to buy both simply because both appear in an antioxidant discussion.

Choosing a product without collecting a new routine

Start with the product you would enjoy using. Read the full ingredient list, directions and any testing information the manufacturer provides. A recognisable hero ingredient cannot answer every question about the rest of the formula.

If your current moisturiser already contains Ubiquinone, there is no need to add a separate Q10 step merely to make the ingredient feel official. If you want to try something new, change one product at a time. That makes it easier to keep track of what you used and how your skin felt.

Treat a Q10 cream as the product described on its label. Antioxidant measurements in the cited research do not give an ordinary cream a sunscreen rating. Keep sunscreen decisions separate from a marketing claim about fighting free radicals.

What these sources cannot confirm

The cited studies do not establish pregnancy safety, a universal pore-clogging score or vegan sourcing for every Q10 product. I have therefore left those ingredient ratings unknown. For vegan status, ask the manufacturer about the specific product and its ingredients.

If you are pregnant, breastfeeding or using prescribed treatment, bring the complete product list to a qualified clinician when you need individual advice. Persistent irritation also deserves assessment rather than a search for a more impressive antioxidant.

I gathered the useful Q10 science here so you can make a calm decision and get back to a simple routine. The Danish Skin Care Kit is the routine I created after helping more than 100,000 people with problem skin. It is an option for organising your daily skincare, not a product tested in the Q10 studies discussed here. If you have questions, write to me at info@danishskincare.com.