Your Complete Guide to Collagen in 2026
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Is your skin beginning to lose its youthful radiance?
Or perhaps you’ve noticed it becoming thinner and slightly craggier?
As you enter your 30s, collagen, the structural foundation of your skin, begins to deteriorate.
This is when the telltale signs of ageing kick in.
So, if you’re considering collagen for smoothing your facial lines, join us.
As we explore one of the most celebrated proteins available.
Collagen, in essence, is the internal scaffolding deep within your dermis, serving as the structural protein.
It boasts higher concentrations in ligaments and tendons and contributes to approximately one-third of your body’s overall protein makeup.
Over the years, your body progressively produces less collagen; research (1) has found that this decline typically begins in your 20s, amounting to roughly a 1% reduction in collagen production each year.
Beyond the natural ageing process, external factors such as excessive sun exposure, smoking, and exposure to environmental pollutants can further hasten this breakdown of collagen.
There are 29 different types of collagen, as this study (2) demonstrates.
The primary sources of protein you should know about are types I, II, III, and IV:
These complex collagen types begin to explain collagen’s crucial role in helping maintain the structure and function of many of your skin’s tissues.
This is a common question our clients ask; misleading marketing claims sometimes lead you to believe that topical collagen application will rejuvenate the collagen in your skin.
Regrettably, this is not the case, as collagen molecules, by their very nature, are large and can’t penetrate the skin when applied externally.
However, they provide a surface-level benefit by adding moisture to the skin, resulting in plumper skin thanks to collagen’s excellent moisturising properties.
When well-moisturised, your skin appears healthier and more youthful, but this effect does not come from topical absorption.
When you take collagen supplements internally, your body rapidly absorbs them. Some evidence suggests that internal supplementation may slow down your skin’s ageing process, diminishing fine lines and plumping your skin by stimulating the natural production of collagen, elastin, and fibrillin.
A study published in the Journal of Drugs in Dermatology (3) reveals that it can have a substantial impact on enhancing skin health, promoting a more youthful appearance through the following three primary mechanisms:
So, are there other supplements that can help plump your gorgeous collagen?
Vitamin C is a highly effective ingredient that helps to stimulate collagen production within your skin.
Ascorbic acid is a potent antioxidant that combats sun damage and inhibits melanin production, helping to lighten dark spots.
In a previous post, “Vitamin C for Skin Health: Your Complete Guide,” we highlighted how vitamin A can repair your skin’s DNA at the cellular level and help create protective barriers.
If you’re keen to begin introducing vitamin C into your skincare routine, we recommend our C+ Ascorbic Acid skin shot. This shot enhances your skin’s resilience, restoring it to its youthful, radiant state.
Incorporating vitamin A into your skincare routine can also bolster collagen production in your skin. Vitamin A has been extensively researched for its ability to combat signs of ageing.
Try our A+ Retinoid Complex; when applied topically, it helps to revitalise dull, prematurely aged skin.
Intelligently formulated with ceramides, it buffers the sometimes irritating effects of vitamin A, helping you build your skin’s foundation and make your protective barrier more resilient.
Copper peptides are a great way to produce; they activate the lysyl oxidase enzyme, a critical factor in collagen maturation.
These peptides are found in our DNA Age Delay skin shot, which helps strengthen more mature, dry, thin skin.
Alternatively, you can take a daily intake of 900 micrograms of copper, or you may want to consider incorporating foods like cashews, oysters, crab, sunflower seeds, and beef liver into your diet to boost your copper intake.
Collagen is the crucial structural protein found deep within the skin, responsible for maintaining its integrity.
Your natural collagen production decreases as you age, revealing many signs of ageing, and external factors like sun exposure and smoking can also exacerbate collagen breakdown.
Topical application is often marketed as a solution, but as you can see, the large size of collagen molecules prevents them from penetrating your skin. Instead, they provide surface-level moisturisation, promoting a plumper appearance.
When taken internally, supplements have significant benefits. Studies (4) suggest they enhance your skin elasticity, retain moisture, and increase the density of your collagen, demonstrating that internal supplementation will, infact, stimulate your body’s natural collagen, elastin, and fibrillin production.
Some great ingredient supplements, like Vitamin C, A derivatives, and copper peptides, contribute to healthier, more resilient skin.
So, in conclusion, taking care of your collagen is crucial for maintaining youthful skin.
From your 20s onward, collagen production gradually declines (often 1% per year), which can show up as softer definition, fine lines, and skin that feels a little thinner or “craggier”. Add sun exposure, smoking, and pollution, and the breakdown can speed up.
Topical collagen is brilliant for surface hydration and that “plumped” look, but collagen molecules are too large to penetrate deeply enough to rebuild your dermal collagen stores. Think of it as moisturising support—not structural rebuilding.
Evidence suggests oral collagen peptides can improve skin hydration and elasticity and may support a smoother look over time. The peptides are broken down and used as building blocks, and some studies suggest they can help the skin matrix by encouraging collagen-related activity.
Vitamin C is essential for collagen synthesis, vitamin A derivatives can support skin renewal and firmness signalling, and copper plays a role in collagen maturation (via enzymes involved in cross-linking). Food sources can help too—think colourful produce, quality protein, and mineral-rich options.
Most studies measure changes over 8–12 weeks. Consistency matters—daily use, adequate protein intake, smart sun protection, and a supportive topical routine (barrier care + targeted actives) will give you the best chance of visible improvement.
1. Clinical validation of collagen for skin regeneration.Abraham JD, Vaissière A, Desouches C, Thiery G, Bertrand B, Alfandari B, Courtois I, Azencot A, Casoli V, Haen P, Colson T, Hornebeck W, Ritter D.Am J Transl Res. 2023 Jul 15;15(7):4620-4628. eCollection 2023.
2.T. Figueres Juher, E. Basés Pérez. An overview of the beneficial effects of hydrolysed collagen intake on joint and bone health and skin ageing
3. Cannarozzo G, Fazia G, Bennardo L, et al. A New 675 nm Laser Device in the Treatment of Facial Aging: A Prospective Observational Study. Photobiomodul Photomed Laser Surg. 2021;39(2):118–122. doi: 10.1089/photob.2020.4908. [PubMed] [CrossRef] [Google Scholar]
4.Pu, Szu-Yu, Ya-Li Huang, Chi-Ming Pu, Yi-No Kang, Khanh Dinh Hoang, Kee-Hsin Chen, and Chiehfeng Chen. 2023. “Effects of Oral Collagen for Skin Anti-Ageing: A Systematic Review and Meta-Analysis”” Nutrients 15, no. 9: 2080. https://doi.org/10.3390/nu15092080