Do Telomeres Matter for Skin Ageing? What the Science Actually Tells Us

You can look in the mirror and notice lines, changes in firmness or a different skin texture. What you cannot see is what is happening at the ends of chromosomes inside individual skin cells.

That is where telomeres come in. So, do telomeres and skin ageing really connect? Yes, they appear to be part of the biology of skin ageing, but they are only one part of a much bigger picture. Telomere length is not a simple skin-age score, and longer telomeres do not automatically mean younger-looking skin.

What telomeres have to do with your skin

Telomeres are protective DNA structures at the ends of chromosomes. They help protect chromosome ends as cells divide, and telomere biology changes with cell division, age and cellular stress. That is enough background to make sense of the skin research here. If you want a fuller introduction, our All About Telomeres guide covers the basics in more detail.

Look beneath the surface of ageing skin

Skin ageing is not only about what we can see. It also involves changes in how skin cells behave and communicate with the tissue around them.

One idea researchers study is cellular senescence. A senescent cell has entered a state where it no longer behaves like a younger, normally dividing cell. It can also release signals that affect nearby cells. In skin, that matters because the condition of one group of cells can influence the wider tissue environment.

This is one reason the telomere story is more interesting than simply counting how many DNA repeats remain at a chromosome end.

Telomere length is not the whole story

A 2019 study in The EMBO Journal looked at ageing human skin and focused on melanocytes, the pigment-producing cells in the epidermis. The researchers found that aged melanocytes showed dysfunctional telomeres even when they could not detect telomere shortening.

That is an important twist. It suggests that telomere dysfunction in skin can matter even when the simple story of shorter telomeres does not fit.

The researchers also found that senescent melanocytes could influence surrounding cells in experimental models, including effects on keratinocyte behaviour and epidermal structure. This supports the idea that cellular senescence and telomere dysfunction may be connected to wider changes in ageing skin.

It does not prove that telomere dysfunction causes every visible sign of skin ageing, and it does not show that correcting telomere dysfunction will reverse ageing skin. What it does show is why researchers are looking beyond telomere length alone.

What research says about how old skin looks

Another piece of the picture comes from a 2020 Mendelian randomisation study using UK Biobank data from 417,772 participants. The analysis found that longer genetically predicted leukocyte telomeres were associated with a lower likelihood of facial ageing.

That sounds compelling, but the details matter. Facial ageing was measured using a single subjective question about whether other people said the participant looked younger than, older than or about their age. The telomere measure was based on leukocytes, which are white blood cells, rather than telomeres measured directly in facial skin cells.

So the study supports a possible relationship between genetically influenced telomere length and perceived facial ageing at a population level. It does not prove that making an individual's telomeres longer will make their face look younger, and it does not show that longer telomeres prevent wrinkles.

What UV adds to the picture in New Zealand

For skin, environmental exposure matters too. A 2026 study exposed human keratinocytes and a reconstructed 3D human-skin model to solar-simulated UV. In the UV-exposed conditions, researchers observed DNA damage, telomere shortening and a higher proportion of critically short telomeres.

In the same short-term experimental model, samples protected with the broad-spectrum sunscreen tested remained comparable with non-exposed controls for the structural and molecular measures the researchers assessed. This is useful evidence about UV telomere damage in skin, but it was controlled research in cells and reconstructed skin. It does not show that sunscreen lengthens telomeres in people or reverses existing telomere shortening.

For us in Aotearoa New Zealand, the practical message is much more familiar: sun protection matters. SunSmart advises using sun protection when the UV Index is 3 or above and highlights the higher-risk daylight-saving months, especially between 10am and 4pm. Clothing, shade, sunscreen, a hat and sunglasses all have a place.

Whatever new telomere research teaches us, sun-smart behaviour remains one of the most practical and established ways to protect your skin from UV exposure.

What the science can tell us, and what it cannot

Put these studies together and a careful picture starts to form. Telomere biology is relevant to skin ageing research. Telomere dysfunction may matter as well as simple telomere shortening. Population-level genetic evidence points to a relationship between telomere length and perceived facial ageing, while experimental UV research gives us another plausible connection between environmental skin stress and telomere damage.

But there is a clear boundary. None of this establishes that a dietary supplement can lengthen telomeres in an individual's skin or make skin biologically younger.

That distinction shapes how we think about our Skin/Longevity Combo. We do not rely on one biological marker. Instead, we pair dedicated collagen support with a separate telomere and antioxidant-focused formula for people who want to support skin longevity from more than one angle.

Why we pair collagen with Telomere Health for skin longevity

The Skin/Longevity Combo contains two complete Puraz products: Collagen Infusion Capsules and Telomere Health. Both are made in New Zealand, and each has a different job in the combination.

We use Collagen Infusion as the dedicated collagen-focused part. A three-capsule daily serve provides 1500 mg of bovine collagen peptides, alongside non-acidic vitamin C and fruit-derived antioxidant support. Vitamin C supports normal collagen formation, while the collagen peptides provide collagen-derived amino acids.

Telomere Health is formulated around a different area. It brings together Astragalus Extract standardised to 10 percent Astragaloside IV, reduced glutathione, baicalin, selenium and an antioxidant complex, along with collagen hydrolysate peptides. We selected these nutrients and plant compounds for telomere maintenance and antioxidant support.

That broader approach is why we pair the two complete products in our Skin/Longevity Combo. We believe the pairing makes sense for people who want dedicated collagen support alongside a separate formula focused on telomere and antioxidant support. We do not claim that the finished combo has been clinically shown to lengthen skin telomeres, slow skin ageing or reverse visible ageing.

For day-to-day use, Collagen Infusion is taken as three capsules once daily, with or without food, and Telomere Health is taken as two capsules once daily.

A quick safety note

This article is general information, not medical advice. Both products should not be taken during pregnancy or lactation. Collagen Infusion also carries a caution for people with known protein allergies. If you take medication, live with a medical condition or are unsure whether a dietary supplement is suitable for you, check with a qualified health professional before starting.

What still matters most for your skin day to day

Telomeres are fascinating, but healthy skin ageing is much bigger than one marker. Sun-smart behaviour, a varied diet, enough protein, vitamin C from food, good sleep, appropriate skincare, not smoking and wider healthy lifestyle choices all matter over time.

If collagen is one of your interests, our guide to what causes collagen loss looks more closely at age, UV exposure and everyday factors without turning the answer into a single-cause story.

Supplements can sit alongside those foundations as an optional support layer, not a replacement for them. If you want to see where different products fit, you can explore our Healthy Ageing range or our Skin, Hair & Nails collection.

Common questions about telomeres and skin ageing

Do telomeres affect skin ageing?

Research suggests telomere biology is involved in skin ageing, including telomere shortening, telomere dysfunction and links with cellular senescence. Telomeres are one part of a much wider ageing process, not a stand-alone measure of skin age.

Are shorter telomeres linked with older-looking skin?

A large UK Biobank Mendelian randomisation study found that longer genetically predicted leukocyte telomeres were associated with a lower likelihood of facial ageing. The facial-ageing measure was subjective and telomeres were measured in leukocytes rather than facial skin, so the result should not be read as proof that longer telomeres guarantee younger-looking skin.

Can telomere damage happen without telomeres getting shorter?

Yes. A 2019 human-skin study found aged melanocytes with dysfunctional telomeres even without detectable telomere shortening. That is one reason researchers look at telomere function as well as length.

Does UV damage telomeres in skin cells?

Experimental research suggests it can. In a 2026 study, solar-simulated UV exposure in human keratinocytes and reconstructed human skin was associated with DNA damage, telomere shortening and more critically short telomeres.

Does sunscreen protect skin-cell telomeres?

A 2026 experiment found that the broad-spectrum sunscreen tested reduced detectable short-term UV-related telomere shortening and DNA damage in keratinocytes and reconstructed skin under experimental conditions. That does not mean sunscreen has been clinically proven to maintain or lengthen telomeres in people over time.

Can a supplement lengthen telomeres in your skin?

There is not established evidence that a dietary supplement can lengthen telomeres in an individual's skin. Puraz Telomere Health and the Skin/Longevity Combo have not been clinically demonstrated to lengthen telomeres in human skin.

How are collagen and telomeres connected to skin ageing?

They relate to different parts of the ageing picture. Collagen is a structural protein that helps support skin structure, while telomeres are chromosome-end structures studied in cell ageing and senescence. Supporting collagen does not mean changing telomere length, which is why we treat these as separate areas of support.

Taking the long view on skin

Telomeres help researchers understand one part of how skin changes over time. The most useful takeaway is not to chase a single number or assume longer always means younger. Skin ageing reflects cell behaviour, structural proteins, environmental exposure and the way we look after ourselves over the years.

We like an approach that brings together sensible outside protection and thoughtful inside nutritional support. For someone who wants our dedicated collagen support alongside our separate telomere and antioxidant-focused formulation, the Skin/Longevity Combo is a simple way to have both complete products together.

References

• Victorelli S, et al. Senescent human melanocytes drive skin ageing via paracrine telomere dysfunction. The EMBO Journal, 2019. View study.
• Zhan Y, Hägg S. Association between genetically predicted telomere length and facial skin aging in the UK Biobank: a Mendelian randomization study. GeroScience, 2020. View study.
• Photoprotection from UV light-induced telomere shortening and DNA damage by a broad-spectrum sunscreen. Journal of Photochemistry and Photobiology B: Biology, 2026. View PubMed record.
• SunSmart Aotearoa New Zealand. UV radiation. Read SunSmart guidance.