Key Facts:
- Collagen production exceeds breakdown in youth but decreases by 1% annually from mid-20s, with accelerated loss post-menopause
- Early 20s focus should be on protection through daily broad-spectrum sunscreen and adequate protein intake
- 30s-40s require active collagen stimulation through retinoids, vitamin C, and potentially professional treatments like skin needling
- Post-50, up to 30% of dermal collagen can be lost within five years, requiring increased focus on hydration and barrier repair
- Consistent use of oral hydrolysed collagen peptides, alongside sun protection and proper nutrition, can support skin integrity at all life stages
Collagen is the skin's main structural protein. It provides firmness, strength and elasticity, forming the framework of our dermis (the skin's inner layer). Fibroblasts (cells) produce collagen in a continuous cycle of synthesis and breakdown. In our youth, collagen production exceeds degradation. With age, that balance shifts. As a Dermal Clinician working in dermatology, I see the effects of this shift every day: progressive loss of elasticity, persistent dryness and increased sensitivity. These concerns reflect structural change within the dermis, alongside skin barrier alterations that develop over time. Collagen activity is influenced internally by hormones, UV exposure, inflammation, nutrition and overall health. While topical skincare plays a role, structural changes are gradual and cumulative. Consistency across protection, stimulation and internal support makes the difference long term.
Early 20s: Protect What You've Got
In our early 20s, collagen levels are at their peak. Skin is firm and recovers quickly. The focus here is protection, not correction.
Ultraviolet radiation is the primary external driver of collagen degradation. It activates enzymes that break down collagen fibres long before visible ageing appears. Daily broad-spectrum sunscreen is essential, as early UV exposure directly impacts collagen density later in life.
Diet and general wellbeing also matter, as adequate protein intake supplies the amino acids required for collagen synthesis, while vitamin C supports proper collagen formation. Once you nail these fundamentals, you can then consider other means of collagen support.
30s and 40s: Introduce Collagen Stimulation
From our mid-20s onward, collagen production declines by around 1% per year. By the 30s and 40s, early laxity, fine lines at rest and increasing dryness become more noticeable.
Reduced collagen and glycosaminoglycan (GAGs) content lowers the skin's ability to retain water, contributing to dehydration and reactivity. Structural resilience is gradually decreasing.
This is the time to actively stimulate collagen. Retinoids, also known as vitamin A, remain among the most evidence-based topical ingredients for supporting collagen production. With regular use, they enhance fibroblast activity (the cells important for healing and tissue health) and reduce collagen-degrading enzymes. Antioxidants such as vitamin C assist in synthesis and limit oxidative damage.
Whilst sun protection continues to underpin all other strategies, in-clinic treatments may also be appropriate. Modalities such as skin needling and chemical peels can promote collagen remodelling when performed under professional guidance.
Internal support should run alongside these interventions. Clinical studies show improvements in elasticity and dermal density with daily oral hydrolysed collagen peptide supplementation over at least 8–12 weeks. Think premium formulations such as The Collagen Co's Premium Collagen Peptides.
50+: The Time to Reinforce and Rebuild
After menopause, collagen decline accelerates due to reduced oestrogen levels. Up to 30% of dermal collagen can be lost within five years. Many patients during this time report the change as quick and bothersome. I always reassure them that this process is biologically expected, but it doesn't have to be unmanageable.
Whilst we can't stop the decline in collagen and the presentations that follow — such as skin thinning, fragility, deeper creases and more pronounced dryness — we can support these changes by enhancing skin density and replenishing reduced lipid content.
Retinoids may still be beneficial, though hydration and barrier repair become critical to maintain tolerance. Think humectants that draw water to the skin, such as hyaluronic acid, as well as ceramides and anti-inflammatory ingredients like niacinamide.
More intensive modalities can be considered if clinically appropriate. Fractional or ablative laser resurfacing, advanced chemical peels and ultrasound-based devices can stimulate deeper collagen remodelling. This is where a customised treatment and skincare plan by a professional is important to support outcomes safely and effectively.
Internal support becomes increasingly relevant. Oral hydrolysed collagen peptides may improve elasticity when used consistently.
At every life stage, the principles remain clear: protect early, stimulate when needed and reinforce as structure declines. Daily sunscreen, adequate nutrition and overall health underpin every strategy. Collagen renewal is gradual, but with a consistent approach, skin integrity can be supported over time.
Written by The Collagen Co. Resident Dermal Clinician
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The Collagen Co. creates beauty-first nutrition with collagen at the core, combining great taste and science-backed formulas to deliver real, visable results.
