Collagen supplements are among the most popular wellness products in the UK, used to support skin elasticity, hair and nail strength, joint comfort, and overall connective tissue health. With endogenous collagen production declining from the mid-20s, choosing the right collagen peptide formula is key. This guide reviews the best collagen supplements available in the UK in 2025, helping you select the most effective, evidence-backed option for your health goals. Collagen supplements are no longer a niche wellness trend. In the UK, collagen peptides are now widely used by clinicians, physiotherapists, dermatology professionals, and sports nutritionists to support skin ageing, joint comfort, tendon resilience, bone integrity, and connective tissue repair.
As endogenous collagen production declines with age — typically from the mid-20s onward — dietary collagen intake becomes increasingly relevant. However, the effectiveness of a collagen supplement depends heavily on formulation quality, including collagen type, peptide size, source material, hydrolysis method, dosage, and the presence of essential cofactors such as vitamin C.
This expert-led guide reviews the best collagen supplements available in the UK, all sourced from trusted manufacturers and available via Welzo. Each product has been assessed for:
| Product | Collagen Type | Format | Best For | Key Benefits | Price / Where to Buy |
|---|---|---|---|---|---|
| Welzo Bovine Collagen Peptides | I & III | Powder | Skin, joints, first-time users | High bioavailability, neutral taste | Buy |
| Great Lakes Hydrolysate | I & III | Powder | Joints & mobility | Research-aligned, solubility | Buy |
| Neocell Super Collagen + C & Biotin | I & III | Tablets | Skin, hair, nails | Includes vitamin C & biotin | Buy |
| Osavi Collagen – Tendons & Ligaments | I & III | Powder | Athletes, tendon recovery | Targeted connective tissue support | Buy |
| Codeage Multi-Collagen | I, II, III, V, X | Powder | Whole-body support | Broad collagen spectrum, systemic support | Buy |
| Planet Paleo Organic Bone Broth | I, III | Powder | Gut health, holistic wellness | Whole-food collagen, amino acids | Buy |
Collagen type profile (I, II, III, V, X)
Bioavailability and peptide hydrolysis
Clinical relevance to skin, joints, tendons, and bones
Ingredient transparency and sourcing standards
Real-world outcomes reported by users
Suitability for different health goals
Before reviewing individual products, it is important to understand what separates clinically effective collagen supplements from low-value powders.
Type I & III – Skin, tendons, ligaments, bone matrix
Type II – Cartilage and joint cushioning
Type V & X – Cellular scaffolding, connective tissue organisation
Hydrolysed collagen peptides are broken down into short-chain peptides (di- and tri-peptides), which are:
Easier to digest
More rapidly absorbed
Detectable in blood plasma within 1–2 hours
More likely to stimulate fibroblast activity
Most clinical trials showing benefit use 10–15g of collagen peptides daily, taken consistently for 8–12 weeks.
Vitamin C – Required for collagen synthesis
Biotin – Supports hair and nail keratin
Glycine & Proline – Structural amino acids
Where to Buy:
https://welzo.com/products/bovine-collagen-peptides-powder
Welzo’s Bovine Collagen Peptides Powder is a pure, hydrolysed collagen supplement providing types I and III collagen, the two most abundant forms found in human connective tissue.
Bovine-derived collagen from connective tissues
Enzymatically hydrolysed for enhanced absorption
Neutral taste and odourless profile
No sweeteners, fillers, or flavourings
Type I collagen forms the structural backbone of:
Dermal skin layers
Tendons and ligaments
Bone organic matrix
Type III collagen supports:
Skin elasticity
Early tissue repair
Vascular and connective scaffolding
Hydrolysed collagen peptides such as Pro-Hyp and Hyp-Gly have been shown in research to accumulate in skin and joint tissues, where they may stimulate collagen synthesis indirectly.
Optimal dose: 10–15g daily
Can be added to coffee, tea, smoothies, soups, or water
Heat-stable peptides retain integrity in hot drinks
From a formulation standpoint, this is an ideal baseline collagen supplement. It is particularly suitable for users who want maximum flexibility, clean ingredients, and clinically relevant dosing without unnecessary additives.
| Pros | Cons |
|---|---|
| High bioavailability peptides | No vitamin C included |
| Excellent for skin and joints | Requires daily consistency |
| Neutral flavour | Not targeted to niche conditions |
Skin ageing prevention
Nail and hair structural support
General joint and connective tissue health
First-time collagen users
Where to Buy:
https://welzo.com/products/great-lakes-hydrolysate-collagen
Great Lakes is widely recognised as one of the most established collagen manufacturers globally, and its hydrolysate collagen is frequently referenced in practitioner-led protocols.
Hydrolysed bovine collagen
Types I & III
Grass-fed sourcing
Very fine peptide particle size
This formulation dissolves exceptionally well, even in cold liquids, indicating a high degree of hydrolysis, which correlates with faster peptide uptake.
Joint stiffness
Early osteo-related discomfort
Skin hydration and elasticity
Post-exercise connective tissue recovery
This product closely mirrors the collagen used in many published intervention studies, making it a strong choice for users who prioritise evidence alignment and manufacturing consistency.
| Pros | Cons |
|---|---|
| Excellent solubility | Premium pricing |
| Trusted clinical reputation | No cofactors |
| Clean ingredient list | Neutral taste only |
Joint comfort and mobility
Users seeking research-aligned collagen
Long-term supplementation protocols
Where to Buy:
https://welzo.com/products/neocell-super-collagen-vitamin-c-biotin-270-tablets
Neocell’s formulation addresses a key limitation of many collagen supplements: lack of synthesis cofactors.
Vitamin C is essential for:
Proline and lysine hydroxylation
Stable collagen triple-helix formation
Preventing structurally weak collagen fibres
Without sufficient vitamin C, collagen intake alone may not translate into effective tissue synthesis.
Biotin supports keratin infrastructure, making this product especially relevant for:
Brittle nails
Hair thinning
Post-partum or stress-related hair changes
While tablets provide convenience, total collagen dose per serving is typically lower than powders. Results may take longer but are often more targeted toward beauty outcomes.
| Pros | Cons |
|---|---|
| Includes vitamin C | Lower collagen dose |
| Supports hair and nails | Large tablets |
| Convenient dosing | Less flexible |
Skin firmness and elasticity
Hair and nail strength
Users who dislike powders
Where to Buy:
https://welzo.com/products/osavi-collagen-peptides-tendons-ligaments-1509-grams
Tendons and ligaments are slow-turnover tissues that respond differently to nutrition than skin. Osavi’s formulation is designed with this physiology in mind.
High mechanical load
Low blood supply
Slow collagen remodelling rate
Supplementation may be particularly useful during:
High-volume training
Rehabilitation phases
Repetitive strain exposure
Emerging research suggests collagen supplementation combined with mechanical loading may improve tendon stiffness and resilience. This product aligns well with those findings conceptually.
Athletes
Runners and weightlifters
Repetitive strain recovery
Where to Buy:
https://welzo.com/products/multi-collagen-peptides-powder-567g-codeage
This is one of the most comprehensive collagen formulations available in the UK.
Type I & III – Skin, tendons
Type II – Cartilage
Type V & X – Connective tissue organisation
Different tissues require different collagen types. Multi-collagen formulas may offer broader systemic support, particularly for ageing populations or those with combined skin and joint concerns.
| Pros | Cons |
|---|---|
| Broad collagen spectrum | Higher cost |
| Joint + skin + cartilage | Complex blend |
| Systemic support | Not targeted |
Whole-body connective tissue support
Joint and cartilage health
Age-related structural decline
Where to Buy:
https://welzo.com/products/osavi-collagen-peptides-joints-bones-153-grams
Bones are approximately 30% collagen by weight, forming the scaffold on which minerals bind. Supporting this matrix is critical for skeletal resilience.
Collagen peptides may:
Support cartilage cushioning
Improve joint comfort
Contribute to bone matrix integrity
Joint stiffness
Early mobility decline
Active ageing support
Where to Buy:
https://welzo.com/products/organic-bone-broth-collagen-protein-225g-planet-paleo
This product follows a whole-food, ancestral nutrition approach.
Lower collagen concentration per serving
Broader amino acid and micronutrient profile
Includes glycine, which supports gut health and sleep
Gut health support
Whole-food nutrition preferences
Holistic wellness routines
Best Overall Collagen Powder UK: Welzo Bovine Collagen Peptides
Best for Joints: Great Lakes Hydrolysate Collagen
Best for Skin, Hair & Nails: Neocell Super Collagen + Vitamin C
Best Multi-Collagen Formula: Codeage Multi-Collagen Peptides
Best Whole-Food Option: Planet Paleo Bone Broth Collagen
Collagen supplements provide hydrolysed collagen peptides that the body can absorb. They may stimulate connective tissue support by increasing collagen synthesis and elastin production. Source
Collagen peptides can improve skin hydration, elasticity, and reduce wrinkles when taken for 8–12 weeks by stimulating dermal fibroblasts and increasing hyaluronic acid production. Source
Type I collagen is most abundant in skin. Marine and bovine sources of type I collagen are commonly used to support skin hydration and elasticity. Source
Collagen peptides, especially type II or hydrolysed collagen, may reduce joint discomfort and support mobility by aiding cartilage structure and reducing inflammation. Source
Most users notice benefits for skin or joints after 4–12 weeks of daily supplementation, depending on dose and individual factors. Source
Clinical studies typically use 2.5–10g per day for skin and 10–15g for joint and connective tissue support. Source
Collagen peptides may enhance bone mineral density and bone turnover markers, especially when combined with vitamin D and calcium. Source
Collagen may support muscle recovery and structure when paired with resistance training, although results vary. Other protein sources may be equally effective. Source
Collagen peptides may increase nail growth, reduce breakage, and support hair strength by providing essential amino acids. Source
Generally safe for most adults at doses up to 10g/day. Mild side effects may include bloating or nausea. Always check for allergens. Source
Collagen peptides may support intestinal epithelial cells and improve gut lining integrity, though research is still emerging. Source
Most collagen supplements are animal-derived and not suitable for vegetarians/vegans. Plant-based alternatives do not contain true collagen but may support synthesis. Source
Collagen may increase satiety and potentially support weight management when part of a balanced diet. Source
Collagen declines naturally with age. Supplementation may modestly support tissue resilience, hydration, and elasticity alongside lifestyle factors like nutrition and sun protection. Source
No. Effectiveness depends on collagen type, peptide size, and quality. Marine and bovine sources are most studied for skin and joint benefits. Source
Hydrolysed collagen is enzymatically broken into smaller peptides, improving absorption and circulating in the blood more efficiently. Source
Vitamin C is required for collagen synthesis, stabilizing the triple-helix structure. Combining vitamin C with collagen supplements may enhance results. Source
Limited safety data. Children and pregnant individuals should consult a clinician before use. Source
Generally safe, but products with herbs, vitamins, or high nutrient doses may interact with certain medications. Consult a healthcare provider if taking prescription drugs. Source
Collagen may offer mild benefits alone, but pairing supplementation with resistance training, protein-rich diet, and vitamins generally yields better tissue health outcomes. Source
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