Glucosamine, Chondroitin or Collagen Peptides? Comparing Joint Support Ingredients

Written by Dr Ilma Imtiaz

Maybe your knees feel a little stiffer getting up from the sofa, or your joints need more time to warm up after a walk or workout. As we move through our 40s, 50s and beyond, our muscles, joints and connective tissues naturally change, and for women, the hormonal shifts of perimenopause and menopause can add another layer.

Staying active, maintaining muscle, eating well and recovering properly can all support healthy movement as we age. Nutrition plays a role, too. If you’ve explored joint supplements, you’ve probably come across glucosamine, chondroitin and collagen peptides. So, what’s the difference, and what does the research actually tell us?

First, a quick look at what keeps a joint moving well

A healthy joint is about much more than bone meeting bone.

Cartilage covers the ends of bones and helps them move smoothly against one another. Tendons connect muscle to bone and help transfer the forces that create movement, while ligaments connect bones and help provide stability.

Muscle matters, too. Strong muscles around a joint help support movement and manage the loads we place on our bodies every day. That’s why looking after our joints as we age isn’t necessarily about targeting one structure. It’s about supporting the whole system that keeps us moving.

Where do glucosamine and chondroitin fit?

Glucosamine and chondroitin have been part of the joint-health conversation for decades. Both are related to naturally occurring components of cartilage. Glucosamine is used by the body to make molecules found within cartilage, while chondroitin sulfate is itself an important component of the cartilage matrix and contributes to its ability to retain water.

This biological role is one reason they became so popular in joint supplements. But what happens when we look at the clinical research? The evidence is mixed.

One of the largest studies, the NIH-funded GAIT trial involving more than 1,500 people with knee osteoarthritis, found that glucosamine hydrochloride and chondroitin sulfate, either alone or together, did not significantly improve pain compared with placebo across the overall study population. Interestingly, the combination appeared more promising in a subgroup of participants experiencing moderate-to-severe pain [1].

Other research has produced more encouraging results. In the MOVES trial, a glucosamine and chondroitin combination provided similar symptom relief to celecoxib, a prescription anti-inflammatory medication, over six months in people with knee osteoarthritis [2]

Taken together, research suggests that glucosamine and chondroitin may offer benefits for some people, particularly in the context of osteoarthritis, but results have not been consistent across studies.

What about collagen peptides for joints?

Collagen is an important structural protein in connective tissues, including cartilage, tendons and ligaments. Collagen peptides are smaller pieces of collagen that provide collagen-derived amino acids and peptides.

Research suggests that certain collagen-derived peptides can be absorbed into the bloodstream and may interact with cells involved in connective tissue metabolism [7-10]. Clinical studies have also explored collagen supplementation for joint comfort and function, with recent reviews reporting promising results, although findings vary between collagen products and studies [3,4]. And that distinction matters.

Not all collagen peptides are the same

“Collagen peptides” describes a broad category rather than one single ingredient. Different collagen peptide preparations can vary in their source, manufacturing process, peptide profile, dose and the clinical research behind them. That means results from a study using one specific collagen preparation shouldn’t automatically be assumed to apply to every collagen supplement on the shelf. This is where specific bioactive collagen peptides (BCPs) become particularly interesting.

Rather than looking only at collagen as a general protein source, researchers have studied certain peptide preparations for particular connective tissues and functional outcomes. For women thinking about staying active through midlife and beyond, that gives us a broader way to think about joint support, not just the joint itself, but the connective tissues that help us move.

A quick guide to joint support ingredients

So, glucosamine, chondroitin or collagen?

There isn’t a simple winner. Glucosamine and chondroitin have a long history of use and have been extensively researched, particularly in people with osteoarthritis. Some studies have reported benefits, while others have found relatively small or inconsistent effects [1,2].

Collagen peptides are different. They provide collagen-derived amino acids and peptides, and a growing body of research has explored their role in supporting connective tissues, joint function and comfortable movement [3,4].

Rather than thinking of these ingredients as interchangeable versions of the same thing, it may be more useful to think about what you’re hoping to support and what research sits behind the specific ingredient you choose.

Supporting your joints is bigger than a supplement

Of course, no scoop of powder replaces movement. One of the most powerful things we can do as we age is keep using our bodies.

Regular walking and everyday movement help keep us active. Resistance training helps preserve muscle and strength. Mobility work can help us continue moving comfortably through a useful range of motion. And adequate protein, balanced nutrition, sleep and recovery all contribute to maintaining the tissues that support movement.

For women in midlife, this becomes less about trying to move exactly as we did at 25 and more about giving our bodies what they need to keep doing the things we love for years to come — a hike with friends, strength training, gardening, travelling and running around with the kids or grandkids. Even simply getting up in the morning and feeling ready to take on the day. That’s the bigger picture of joint health.

Why Sparkle Wellness created Joint Boost

That whole-body view of movement is behind Sparkle Wellness Joint Boost. Rather than using a general collagen powder, Joint Boost brings together two specific bioactive collagen peptides, FORTIGEL® and TENDOFORTE®, with research focused on different connective tissues.

The research behind FORTIGEL® and TENDOFORTE® collagen

FORTIGEL® has been studied for joint and cartilage support. In clinical trials, 5 g daily has been associated with improvements in activity-related knee discomfort in physically active adults, as well as joint comfort during everyday movements such as walking, climbing stairs and kneeling [7,8].

TENDOFORTE® has been studied for tendon and ligament support. Clinical research has explored its use alongside exercise, with studies reporting improvements in areas including ankle stability and Achilles tendon function [9,10]. 

Together, they take a broader approach to joint support, looking beyond cartilage to the tendons and ligaments that also help us move. Because for us, joint health isn’t really just about joints. It’s about continuing to move, feel strong and do more of what you love, through midlife and well beyond.

The Take Home Message

Glucosamine, chondroitin and collagen peptides all have a place in the joint-support conversation, but they aren't the same thing, and the evidence behind them isn't interchangeable.

When choosing a supplement, look beyond the ingredient name on the front of the pack. Consider the specific form, dose and clinical research behind it, alongside the lifestyle habits that support healthy movement every day. Your joints don't work in isolation, and neither should your approach to looking after them.

FAQs

Is glucosamine or collagen better for joint comfort?

Glucosamine and collagen take different approaches to joint support. Glucosamine and chondroitin have been studied extensively, particularly in people with osteoarthritis, although results have been mixed. Specific collagen peptides, including Fortigel®, have also been clinically studied for supporting joint comfort and function. The key is looking at the specific ingredient, dose and research behind it.

Can I take glucosamine and Joint Boost together?

Glucosamine and collagen peptides work differently, so some people may choose to use them together. If you take medications or have a health condition, it’s always a good idea to check with your healthcare provider before adding a new supplement.

Why does Joint Boost use two collagen peptides?

Joint Boost combines two specific Bioactive Collagen Peptides (BCPs) with different areas of research behind them. Fortigel® has been studied for joint and cartilage support, while Tendoforte® has been studied for tendons and ligaments, supporting a broader approach to healthy movement.

Dr. Ilma Imtiaz has a background in biomedical and naturopathic research and recently completed her PhD at the National Centre for Naturopathic Medicine, Southern Cross University, Australia. She is a lead and co-author of multiple peer-reviewed publications, including experimental and review papers across herbal medicine, cancer biology and molecular mechanisms.

At the heart of her work is a passion for science communication, translating complex evidence into clear, engaging, and accessible insights. She is committed to evidence-led wellness and supporting informed, balanced health decisions.

References

1. Clegg DO, Reda DJ, Harris CL, et al. Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis. N Engl J Med. 2006;354(8):795-808. https://doi.org/10.1056/NEJMoa052771
2. Hochberg MC, Martel-Pelletier J, Monfort J, et al. Combined chondroitin sulfate and glucosamine for painful knee osteoarthritis: a multicentre, randomised, double-blind, non-inferiority trial versus celecoxib. Ann Rheum Dis. 2016;75(1):37-44. https://doi.org/10.1136/annrheumdis-2014-206792
3. Khatri M, Naughton RJ, Clifford T, Harper LD, Corr L. The effects of collagen peptide supplementation on body composition, collagen synthesis, and recovery from joint injury and exercise: a systematic review. Amino Acids. 2021;53(10):1493-1506. https://doi.org/10.1007/s00726-021-03072-x 
4. Liang CW, Cheng HY, Lee YH, Liao CD, Huang SW. Efficacy and safety of collagen derivatives for osteoarthritis: a trial sequential meta-analysis. Osteoarthritis Cartilage. 2024;32(5):574-584. https://doi.org/10.1016/j.joca.2023.12.010 
5. Lugo JP, Saiyed ZM, Lane NE. Efficacy and tolerability of an undenatured type II collagen supplement in modulating knee osteoarthritis symptoms: a multicenter randomized, double-blind, placebo-controlled study. Nutr J. 2016;15:14. https://doi.org/10.1186/s12937-016-0130-8 
6. Park SY, Lee SH, Kim HT, et al. Efficacy and safety of low-molecular-weight collagen peptides in knee osteoarthritis: a randomized, double-blind, placebo-controlled trial. Front Nutr. 2025;12:1644899. https://doi.org/10.3389/fnut.2025.1644899 
7. Sato H, Mizushige T, Jinno S, et al. Research investigating the absorption and distribution of collagen-derived peptides following oral collagen intake. J Agric Food Chem. 2020;68(11):2831-2838. https://doi.org/10.1021/acs.jafc.8b06896 
8. Schulze C, Schunck M, Zdzieblik D, Oesser S. Impact of specific bioactive collagen peptides on joint discomforts in the lower extremity during daily activities: a randomized controlled trial. Int J Environ Res Public Health. 2024;21(6):687. https://doi.org/10.3390/ijerph21060687 
9. Zdzieblik D, Oesser S, Gollhofer A, König D. Improvement of activity-related knee joint discomfort following supplementation of specific collagen peptides. Appl Physiol Nutr Metab. 2017;42(6):588-595. https://doi.org/10.1139/apnm-2016-0390 
10. Jerger S, Centner C, Lauber B, et al. Specific collagen peptides increase adaptations of patellar tendon morphology following 14-weeks of high-load resistance training: a randomized-controlled trial. Eur J Sport Sci. 2023;23(12):2329-2339. https://doi.org/10.1080/17461391.2023.2232758
11. Praet SFE, Purdam CR, Welvaert M, et al. Oral supplementation of specific collagen peptides combined with calf-strengthening exercises enhances function and reduces pain in Achilles tendinopathy patients. Nutrients. 2019;11(1):76. https://doi.org/10.3390/nu11010076

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.