top of page
A veriety of collagen supplements in pill and powder form, arranged in a circle on a pink background

Why Collagen Matters When You’re on Mounjaro or Wegovy


People using GLP-1 medications such as Mounjaro, Wegovy , and Ozempic often search for ways to support their skin, hair and nails during weight loss. As appetite drops and body fat changes, the skin’s collagen levels can decline too, which is why collagen supplements have become one of the most popular add-ons for GLP-1 users.


The Benefits of Collagen for GLP-1 Users


Adding a high-quality collagen peptide supplement may help:


  • Support skin elasticity and hydration during rapid weight loss

  • Reduce the appearance of fine lines caused by collagen decline

  • Strengthen hair and nails that may become brittle on low-calorie diets

  • Promote overall tissue repair and joint comfort while on Mounjaro or Wegovy


What Type of Collagen Works Best


Look for hydrolysed collagen peptides; they’re easier for your body to absorb. The two most common sources are:


  • Marine collagen; often praised for skin health and fine texture

  • Bovine collagen; typically richer in Type I and III collagen for structural support


Many GLP-1 users also choose formulas that combine collagen with vitamin C, hyaluronic acid or zinc for better absorption and hydration.


How to Choose the Best Collagen Supplement for Mounjaro and Wegovy


When comparing options, check for:


  • Verified reviews and consistently high ratings on Amazon

  • Clear ingredient labels and serving sizes between 2.5 g – 10 g per day

  • A clean ingredient list without unnecessary fillers or sugars

  • Realistic pricing; a premium price doesn’t always mean better!


How to Use Collagen on Your GLP-1 Journey


You can mix powder collagen into your morning coffee, smoothies or yoghurt, or take capsules if you prefer something quick. Because GLP-1s like Mounjaro and Wegovy can reduce appetite, it’s best to pair collagen with adequate protein and hydration for the best results.


TL;DR


Collagen isn’t a miracle fix, but it can be a simple, supportive addition to your daily routine while using Mounjaro or Wegovy. Combined with good nutrition and hydration, it may help your skin feel more resilient as your body adjusts to weight loss.


*Everyone’s body responds differently, so always check with your prescribing professional before adding new supplements.

Will Collagen Stop Saggy Skin?


The TikToks and Reels are scary, right? You see people who have lost loads of weight and suddenly their skin looks loose or deflated, especially around the tummy. And when you are on this journey yourself, that thought can be hard to shake.


That’s why so many GLP-1 users are turning to collagen supplements. Collagen is the protein that keeps your skin stretchy and smooth, but our bodies make less of it as we age, and even less when the weight starts coming off fast.


Taking a collagen supplement won’t completely stop loose skin, but it can help support elasticity and hydration while your body adjusts. We have rounded up the most-loved collagen products on Amazon and listed them here for you.

Photo of Nick Mitchell, founder of Pen Hub
Nick M

Published:

6 Oct 2025

Updated:

8 Oct 2025

Best Collagen Supplements for Skin, Hair & Joints (2025 Top 10 Guide)

Shopping Guides

A veriety of collagen supplements in pill and powder form, arranged in a circle on a pink background
purple and white tub of unflavoured bovine collagen peptides powder, halal, kosher, and UK-made

Pure Collagen Hydrolysate Powder

Wellgard

20K+ bought in past month

average rating is 4.5 out of 5, based on 19198 votes, Ratings
We like this one for its simplicity. It's a pure, unflavoured bovine collagen that mixes into anything without turning your drink cloudy or chalky. It’s made in the UK, gluten-free, and even Halal and Kosher certified. If you just want an easy, no-nonsense collagen that supports skin elasticity while you’re on GLP-1s, this is a solid choice.
View on Amazon

400g

RRP: £26.99

£17.99

premium grass-fed bovine collagen powder in an amber glass jar, sustainably sourced and hydrolysed for easy absorption.

True Collagen

Ancient & Brave

9K+ bought in past month

average rating is 4.4 out of 5, based on 2082 votes, Ratings
If you like your supplements clean, ethical, and a little bit luxe, Ancient + Brave True Collagen is the one. Made from grass-fed European bovine collagen, it’s sustainably sourced, hormone-free, and completely pure, just hydrolysed collagen peptides, nothing else. It blends invisibly into coffee, smoothies, or soup, and supports everything from skin and nails to gut and joint health. Certified B Corp and Climate Neutral, it’s a collagen that does good for you and the planet.
View on Amazon

200g

RRP £32.00

£28.80

black bottle of 8-in-1 collagen complex capsules including adaptogens like ashwagandha and maca

Marine Collagen & Hyaluronic Acid

Sport Supplies

7K+ bought in past month

average rating is 4.5 out of 5, based on 206 votes, Ratings
If you love a supplement that does it all, this 8-in-1 collagen complex is your overachiever in a capsule. It combines marine collagen, vitamin C, hyaluronic acid, and niacinamide for skin support, plus bonus adaptogens like ashwagandha, maca, and lion’s mane for a little extra calm and focus. No powders, no weird taste, just clean ingredients in an easy capsule you can take with breakfast. A great option if you want more than just collagen in your routine.
View on Amazon

60 Capsules

RRP £7.99

£6.99

large white and teal tub of grass-fed bovine collagen peptides powder made in Britain

Pure Hydrolyzed Collagen Peptides Powder

VitaBright

5K+ bought in past month

average rating is 4.4 out of 5, based on 1833 votes, Ratings
A big bag of pure, no-fuss collagen that actually goes the distance. VitaBright’s 500g tub gives you up to 50 servings of hydrolysed bovine collagen, flavourless, smooth-mixing, and made from grass-fed cattle in the UK. It’s Halal, Kosher, and completely additive-free, so you can stir it into coffee, smoothies, or soup without changing the taste. If you just want high-quality collagen at a great price, this is the one to stock up on.
View on Amazon

500g

RRP £19.99

£16.14

blue bottle of 100 % hydrolysed marine collagen capsules, high-strength formula made in the UK

Pure Marine Collagen

WeightWorld

5K+ bought in past month

average rating is 4.5 out of 5, based on 12278 votes, Ratings
We like these marine collagen capsules for anyone who doesn’t fancy adding powder to their coffee every morning. They use sustainably sourced collagen from wild fish, broken down into small, easily absorbed peptides that help support skin firmness and hydration. Each capsule delivers Type I and III collagen, the ones your skin loves most, without the fishy aftertaste. The formula’s clean, non-GMO, and made to GMP standards, making it an easy, travel-friendly option for keeping up your collagen routine on GLP-1s.
View on Amazon

120 Capsules

RRP: £19.99

£17.99

blue and beige bottle containing pure hydrolysed marine collagen with vitamins C and E for skin and joint support

Marine Collagen Pure Hydrolysed

Incite Nutrition

5K+ bought in past month

average rating is 4.5 out of 5, based on 4033 votes, Ratings
If you want the benefits of collagen without the price tag, these marine collagen capsules from Incite Nutrition are a smart pick. Each serving gives you 1200 mg of hydrolysed collagen with added vitamin C and hyaluronic acid to support skin elasticity and hydration. Made in the UK to GMP standards, they’re clean, simple, and great value. A solid, low-cost option for keeping up your collagen routine on GLP-1s.
View on Amazon

120 Capsules

RRP £15.99

£9.99

unflavoured grass-fed bovine collagen powder in a bright green pouch, keto-friendly and easy to mix into drinks

Hydrolysed & Grass Fed Collagen Peptides

Hunter & Gather

4K+ bought in past month

average rating is 4.4 out of 5, based on 2601 votes, Ratings
A great pick if you like to support smaller, values-led brands. Hunter & Gather’s bovine collagen powder is as clean as it gets, just one ingredient: pure, hydrolysed collagen peptides. It’s unflavoured, gluten-free, keto-friendly, and lab tested for purity, so you know exactly what you’re putting in your body. Mix it into coffee, smoothies, or soups for an easy daily boost that supports skin, joints, and overall health, without the additives or hype.
View on Amazon

400g

RRP £30.00

£24.00

marine collagen powder with hyaluronic acid and vitamin C, in a pink pouch with peach flavour, designed to support radiant skin

Marine Collagen Powder

Free Soul

600+ bought in past month

average rating is 4.5 out of 5, based on 14 votes, Ratings
This marine collagen blend is for anyone who actually wants to see a difference. Free Soul’s Collagen Glow uses clinically studied Naticol® peptides, shown to help smooth fine lines and boost skin hydration. It’s fortified with vitamin C and hyaluronic acid for that extra dewy-skin factor, and the white peach and mixed berry flavours make it feel more like a daily treat than a supplement. A smart pick if you want visible results and a collagen you’ll actually remember to take.
View on Amazon

180g

RRP: £39.99

£29.99

high-strength collagen and vitamin C tablets in a green bottle, supporting skin, bone, and joint health

Bovine Collagen 3000mg

Holland & Barrett

400+ bought in past month

average rating is 4.3 out of 5, based on 246 votes, Ratings
If you’d rather stick with a trusted high-street name, Holland & Barrett’s Collagen 3000mg tablets are a safe bet. Each serving combines collagen with vitamin C to support normal collagen formation and skin elasticity. It’s a straightforward, no-fuss option from a brand that’s been around forever and holds itself to strict quality standards, ideal if you like knowing exactly what you’re getting and where it’s from.
View on Amazon

180 Tablets

RRP £24.99

£19.18

UK-made halal bovine collagen supplement with a red tag label, supporting skin elasticity and bone strength

100% Pure Bio-Active Collagen (Bovine)

Nutrian

400+ bought in past month

average rating is 4.6 out of 5, based on 106 votes, Ratings
We rate these Nutrian Collagen Plus capsules for being high-quality without the nonsense. Made from grass-fed bovine collagen peptides (Type I and III), they’re designed for better absorption and faster results you can actually feel, smoother skin, stronger joints, and better mobility. Each serving gives a generous 1200 mg dose with no fillers or additives, made right here in the UK to GMP standards. If you prefer capsules to powders, this is a clean, convenient, results-focused choice.
View on Amazon

120 Capsules

RRP £15.99

£14.39

purple and white tub of unflavoured bovine collagen peptides powder, halal, kosher, and UK-made
Pure Collagen Hydrolysate Powder

Wellgard

£17.99
Most Purchased
View on Amazon
black bottle of 8-in-1 collagen complex capsules including adaptogens like ashwagandha and maca
Marine Collagen & Hyaluronic Acid

Sport Supplies

£6.99
Lowest Price
View on Amazon
UK-made halal bovine collagen supplement with a red tag label, supporting skin elasticity and bone strength
100% Pure Bio-Active Collagen (Bovine)

Nutrian

£14.39
Top Rated
View on Amazon

The shopping links on this page are affiliate links, which means if you buy through them, we will earn a small commission. It doesn’t cost you a penny extra, but it does help us keep Pen-Hub free, fabulous, and full of GLP-1 wisdom. Thank you for supporting us in this way.

Comments
Share Your ThoughtsBe the first to write a comment.

Related Guides

Warm wooden infrared sauna with glowing heaters and a wooden bucket inside, symbolising relaxation, recovery, and self-care for Mounjaro and Wegovy users.

Shopping Guide

Best Infrared Saunas for Home Use (2025 Top 10 Wellness Guide)
Start Now
Person standing on smart scales

Shopping Guide

Best Smart Scales for Tracking Weight Loss (2025 Top 10 Guide)
Start Now
Biotin for hair loss on GLP1 medicines

Shopping Guide

Best Biotin Supplements for Hair Growth & Strength (2025 Top 10 Guide)
Start Now
bottom of page