How could collagen help to minimise the effects of the ageing process?
How Collagen Can Support You Through the Ageing Process
As we age, our natural collagen production gradually declines — and since collagen is the structural protein behind our skin, joints and bones, that decline shows up in lots of familiar ways. So can a daily collagen supplement help? For some things, genuinely yes; for others, the honest answer is "not really." Here's the evidence-led breakdown, benefit by benefit, so you know exactly what to expect. For the full background, see our complete guide to liquid marine collagen.
1. Skin — the Strongest Evidence
This is collagen's standout benefit. As collagen depletes with age, skin loses some of its elasticity and hydration, and fine lines become more visible. A 2023 systematic review and meta-analysis in Nutrients, pooling 26 randomised controlled trials, found hydrolysed collagen peptides significantly improved skin hydration and elasticity versus placebo. So for smoother, better-hydrated skin, collagen has genuine science behind it — with results building over 8 to 12 weeks of consistent use.
2. Hair — Be Realistic
You'll see collagen marketed hard for hair, so here's the honest version: the direct clinical evidence that collagen thickens hair or reduces hair loss is limited. Collagen provides amino acids your body uses, but we won't claim it "protects follicles" or "thickens thinning hair," because the evidence doesn't support those specific claims. If hair thinning is bothering you, a balanced diet (with enough protein, iron and zinc) does more — and significant thinning is worth a GP visit, since iron, thyroid and other factors can be involved.
3. Bones — Early-Stage but Encouraging
Bone is rich in collagen, and bone strength becomes a bigger focus with age — especially for women after menopause. The research is promising but earlier-stage: a 2018 randomised study (König et al.) in postmenopausal women found a specific branded collagen peptide taken daily for 12 months increased bone mineral density versus control. Two honest caveats: it used a particular branded peptide, and bone research is less mature than the skin and joint evidence — so we present it as encouraging, not a guarantee, and bone health is well worth discussing with your GP.
4. Joints — Promising Support
Collagen is a major component of the cartilage that cushions your joints, and stiffness tends to creep in with age. A 2023 meta-analysis of randomised trials found collagen peptides modestly reduced knee osteoarthritis-related pain. Honest framing: the effect is modest and it's most useful for everyday joint comfort, not a cure — and persistent joint pain deserves proper assessment. Our guide to joint supplements goes deeper on mobility.
5. Menopause — Structure, Not Symptoms
Here's an important correction to a claim you'll see a lot. Women's collagen levels drop sharply after menopause as oestrogen falls — studies suggest up to around 30% of skin collagen is lost in the first five years. So collagen is genuinely relevant to the structural changes of menopause (skin, joints, bone). But — and this matters — collagen does not ease menopause symptoms like hot flushes, night sweats or mood changes, and we'd never claim it does. Those need their own evidence-led support, covered in our menopause supplements guide, and you might enjoy our take on Davina McCall's Menopausing and where collagen comes in.
Collagen & Ageing at a Glance
| Area | The honest evidence |
|---|---|
| Skin | Strong — improved hydration and elasticity |
| Joints | Promising — modest pain reduction; not a cure |
| Bone | Early-stage but encouraging; discuss with a GP |
| Hair | Limited evidence; diet and a GP check do more |
| Menopause symptoms | Not a collagen benefit — structural support only |
Ageing Well With Collagen
- Take it for what it does — skin first, with promising joint and bone support.
- Be consistent — give it a full 12 weeks; ageing changes are gradual and so is the support.
- Pair it with the basics — SPF, not smoking, a balanced diet and strength training protect you more than any one supplement.
- Lead with your GP for symptoms — collagen supports structure, not menopause symptoms or medical conditions.
- Not sure when to start? See what age to start taking collagen.
Featured Product
Premium Liquid Marine Collagen
10,000mg of clinically studied Naticol marine collagen daily - for visibly smoother, firmer, more hydrated skin in as little as 28 days.
Shop Now →The Bottom Line
Collagen is a genuinely useful ally for ageing well — strongest for skin, promising for joints, encouraging for bone — provided you take it for what it actually does. It isn't a hair-growth treatment, and it isn't a fix for menopause symptoms or medical conditions, and being honest about that is exactly why you can trust the parts that are real. Pair it with the proven basics — SPF, not smoking, good nutrition and strength training — and it earns its place.
If that fits your routine, Kollo's 10g daily sachet of Naticol® marine collagen — with vitamins B1, B5, B6, B12 and C and the amino acid l-lysine — makes it easy to stay consistent. Our complete guide to liquid marine collagen goes deeper, our joint supplements guide covers mobility, and our women's wellness guide for over 40s brings the whole picture together.
Kollo Health was co-founded by Jenni Falconer - TV presenter, Smooth Radio breakfast host, ten-time London Marathon runner and host of the RunPod podcast. Read her story and why she created Kollo.
