Best Collagen Supplements: Expert Guide to Top Picks
If you are comparing the best collagen supplements, the challenge is less about finding a product that sounds impressive and more about choosing one you will use every day. Collagen comes in powders, capsules, gummies and liquids, and the right pick depends on your goals, budget and routine. This guide covers what the clinical research found, how the formats and sources compare, and how to shortlist with confidence.
What to know before buying
Collagen supplements are usually taken for one of three reasons: skin, joints or convenience. Most products use collagen peptides, which are hydrolysed into smaller pieces that are easier to absorb. Collagen is not a quick fix; results depend on daily use over 8 to 12 weeks or longer. See how long collagen takes to work.
What does the clinical research say?
Skin. In a double-blind, placebo-controlled trial, women aged 35 to 55 who took 2.5g or 5g of collagen peptides daily for 8 weeks had significantly better skin elasticity than the placebo group, and no side effects were noted [1]. A meta-analysis of 19 randomised trials with 1,125 participants concluded that hydrolysed collagen taken for 90 days reduces wrinkles and improves skin elasticity and hydration [2].
Joints. In a 24-week study of athletes with activity-related joint pain, collagen hydrolysate reduced joint pain compared with placebo [3]. A meta-analysis of randomised placebo-controlled trials found collagen improved overall osteoarthritis symptom scores [4].
Bones. In a 12-month randomised controlled trial in postmenopausal women, 5g a day of specific collagen peptides increased bone mineral density in the spine and hip compared with placebo [5].
The evidence is strongest for skin and promising for joints and bone. Results vary between people, and a food supplement is not a medicine and is not intended to diagnose, treat or cure any disease.
How we judge a collagen supplement
Ingredient quality, collagen source, hydrolysed form, the grams of collagen per daily serving, and whether the label is clear about what is inside. We give more weight to transparent formulas, named ingredients and published certificates than to promises of instant results.
Best collagen supplements by goal
For skin
Type I collagen is the main collagen in skin, so bovine (Type I and III) or marine (Type I) peptides are the usual choice. Vitamin C adds value because it contributes to normal collagen formation. More in collagen for skin.
For joints
Look for Type II collagen alongside Type I and III, taken consistently for at least three months. More in collagen for joints.
For hair and nails
Bovine Type I and III peptides are the common choice. See collagen for hair.
Best collagen supplements by format
Powders
The easiest way to take larger amounts (5 to 10g a day). They need mixing and some have a noticeable taste.
Capsules
No taste, no mixing, exact dosing and easy to travel with. They provide less collagen per serving than powder, so check the grams per day.
Liquids and gummies
Convenient, but often contain sweeteners, flavourings and gelatine, and usually the least collagen per serving.
The best format is the one you will take every day. Our comparison of collagen capsules vs powder vs tablets goes into detail.
Collagen type and source explained
Most collagen supplements use bovine or marine sources. Bovine collagen provides Type I and III and is a common all-round choice. Marine collagen is Type I and comes from fish, so it is unsuitable for anyone with a fish allergy. See marine collagen vs bovine and types of collagen explained. There is no vegan collagen; vegan products supply nutrients that support the body's own collagen formation.
If you need halal collagen, the source must be certified. See is bovine collagen halal?
How much collagen to take
Clinical trials have used between 2.5g and 10g of collagen peptides a day [1][3][5]. Capsule products usually supply less than this per serving, so compare the label against those amounts. See how much collagen per day and the best time to take collagen.
How to choose the right collagen supplement
- Start with your goal: skin, joints or general use.
- Choose a format you can take daily.
- Check the source and type, and that it is hydrolysed collagen peptides.
- Check the grams of collagen per daily serving.
- Look for a named ingredient supplier and, if you need it, a halal certificate you can view.
- Avoid vague proprietary blends and unnecessary fillers.
Nutrian collagen capsules
Nutrian makes collagen in capsules only, for people who want a measured daily serving with no mixing or taste. All three use Peptan® bovine collagen peptides from Rousselot, are halal certified and are made in the UK. You can read the halal certificates and why we use Peptan®.
| Product | Collagen per serving | Types | Also contains | Price |
|---|---|---|---|---|
| Collagen+ 1200mg, 120 capsules | 1,200mg (2 capsules) | I and III | Collagen only | £14.99, two-month supply |
| Collagen+, 60 capsules | 1,200mg (2 capsules) | I and III | Collagen only | £6.99, one-month supply |
| MultiCollagen+ 2400mg | 2,400mg | I, II, III, V and X | Hyaluronic acid, vitamin C. Contains egg. | £13.99 |
Vitamin C contributes to normal collagen formation for the normal function of skin, bones and cartilage. These servings are lower than the 2.5g to 10g used in the clinical trials above. UK delivery is free, and we ship to the USA. See the full halal collagen supplements range.
FAQs about collagen supplements
Do collagen supplements work?
Randomised trials show improvements in skin elasticity and hydration [1][2] and in joint symptoms [3][4] with daily use over 8 weeks or more. Results vary between people.
Should I take collagen every day?
Yes. The trials that showed benefits used daily doses.
How long does collagen take to work?
Skin studies report changes from around 8 weeks [1]; joint and bone studies ran for 6 to 12 months [3][5].
Is the best collagen supplement always the most expensive?
No. Clear ingredients, a suitable dose and a format you will use matter more than branding.
What is the best halal collagen supplement?
One whose collagen source is certified by a named halal certifier, with a certificate you can view, in a capsule shell that contains no gelatine or uses halal gelatine.
Are there side effects?
Collagen is well tolerated in trials [1]. See collagen supplement side effects.
References
- Proksch E, et al. Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study. Skin Pharmacol Physiol. 2014. PubMed 23949208
- de Miranda RB, et al. Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis. Int J Dermatol. 2021. PubMed 33742704
- Clark KL, et al. 24-week study on the use of collagen hydrolysate as a dietary supplement in athletes with activity-related joint pain. Curr Med Res Opin. 2008. PubMed 18416885
- García-Coronado JM, et al. Effect of collagen supplementation on osteoarthritis symptoms: a meta-analysis of randomized placebo-controlled trials. Int Orthop. 2019. PubMed 30368550
- König D, et al. Specific collagen peptides improve bone mineral density and bone markers in postmenopausal women: a randomized controlled study. Nutrients. 2018. PubMed 29337906
This article is for general information and is not medical advice. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle.