Dr. David E. Manning, Sport Physician
MD CCFP(SEM) DipSportMed.
Peptides are one of the most talked-about topics in sports medicine right now — but the science is still catching up. At Group23 Sports Medicine, one of the most common questions we receive from patients interested in regenerative medicine is: “What do you think about peptides like BPC-157?”
Many patients first hear about these compounds from:
- podcasts
- social media influencers
- fitness communities
- other athletes
Peptides are often promoted online as therapies that may:
- accelerate tendon healing
- repair ligaments
- speed surgical recovery
- improve muscle growth
- enhance athletic performance
Some people even refer to combinations of peptides as the “Wolverine stack” because of their supposed regenerative effects.
But what does the actual scientific evidence show?
First Things First – So What Are Peptides?
Peptides are short chains of amino acids that act as signaling molecules within the body.
Some peptides are well-established medications used every day in medicine.
Examples include:
- Insulin – regulates blood sugar in diabetes
- GLP-1 medications (semaglutide, tirzepatide) – used for diabetes and weight management
- Calcitonin – used in bone metabolism disorders
These medications underwent years of clinical trials and regulatory review before becoming approved treatments.
In contrast, most “peptides” discussed in sports medicine or biohacking communities are experimental compounds that have not been approved for medical use.
The Most Popular Injury-Related Peptide: BPC-157
One of the most widely discussed peptides is BPC-157 (Body Protection Compound-157).
BPC-157 is a synthetic fragment derived from a gastric protein.
Laboratory research suggests potential effects including:
- stimulation of angiogenesis (formation of new blood vessels)
- improved collagen organization
- accelerated tendon and ligament healing
- anti-inflammatory effects
Animal studies have demonstrated promising results in muscle, tendon, ligament, and bone injury models.
Examples of these studies include:
- https://pmc.ncbi.nlm.nih.gov/articles/PMC12313605/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC12446177/
However, human clinical evidence remains extremely limited. Most human data consist of small case series without control groups, making it difficult to determine whether improvements are due to the peptide, placebo effect, or natural healing.
Example:
Because of the limited evidence base, BPC-157 is:
- not approved for clinical use
- prohibited in professional sport
- https://www.usada.org/spirit-of-sport/bpc-157-peptide-prohibited/
Other Peptides Patients Commonly Ask About
1. TB-500 (derived from Thymosin Beta-4)
Often promoted to:
- accelerate muscle recovery
- reduce inflammation
- improve flexibility
However, current evidence is largely limited to animal and laboratory studies, and strong human clinical trial evidence is lacking.
2. Growth Hormone–Related Peptides
Examples include:
- CJC-1295 (a GHRH analogue)
- Ipamorelin (a growth hormone secretagogue)
- GHRP-2 (a growth hormone secretagogue)
These peptides stimulate the body’s growth hormone signaling pathways, which can influence connective tissue metabolism.
However, increased growth hormone activity may carry risks such as:
- insulin resistance
- fluid retention and joint swelling
- cardiovascular complications
- abnormal tissue growth
Human orthopaedic evidence remains limited, and most musculoskeletal data are still preclinical.
Example:
Collagen Peptides: A Different Category
Not all “peptides” are the same.
“Collagen peptides” are oral supplements, not injectable experimental drugs.
They provide amino acid building blocks used in connective tissue.
Clinical studies suggest collagen supplementation may help:
- reduce knee osteoarthritis pain
- improve joint function
- support tendon rehabilitation when combined with exercise
Examples of Osteoarthritis studies:
- https://pubmed.ncbi.nlm.nih.gov/24852756/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC12445226/
- https://pubmed.ncbi.nlm.nih.gov/30368550/
Examples of Tendon studies:
Unlike injectable peptides, collagen supplements function as nutritional support, not pharmacologic signaling molecules.
Collage Peptide in Practice – How we use at Group23
At Group23, when we are supporting patients with tendinopathy or tendon injury, we often incorporate targeted nutritional strategies alongside exercise based rehabilitation under physiotherapy guidance.
A common approach includes:
- Whole Body Collagen – taken daily
- Vitamin C+ BioFizz – taken daily
This combination is used to help support:
- collagen synthesis
- tendon structure and repair
- overall connective tissue health
Vitamin C plays an important role in collagen formation, and pairing it with collagen supplementation may help optimize the body’s ability to build and remodel tendon tissue, particularly when combined with appropriate loading and exercise.
Patients with Osteoarthritis will often do a trial of Collage Peptides as well as some find it helpful to assist in the management of this chronic progressive disease.
You can access these Collagen and Vitamin C products through our online store:
Peptides vs BCAAs (Common Patient Confusion)
Patients often confuse peptides with amino acid supplements like BCAAs.
BCAAs
- leucine
- isoleucine
- valine
These are nutritional supplements that support muscle repair and protein synthesis.
Peptides
Peptides are biologically active signaling molecules that influence cellular pathways.
They behave more like drugs than supplements, which is why clinical trials are required to establish safety and effectiveness.
Why Are Peptides So Popular?
- Biohacking culture
- People want to optimize performance and longevity
- Social media influence
- Peptides are widely promoted as recovery “shortcuts”
- Frustration with slow healing = lack of education by providers on how long tendon/ligament injuries can take to “repair”
- Athletes often seek ways to speed recovery beyond natural timelines
A Major Concern: Unregulated Products
Currently:
- most peptides are not approved by Health Canada or the FDA
- manufacturing is largely unregulated
- quality control is inconsistent
This makes it difficult to verify:
- product purity
- dosing accuracy
- contamination risk
Current Medical Consensus
“Peptides show biological promise in preclinical research but lack sufficient human evidence for routine clinical use”
Important unknowns include:
- dosing
- frequency
- duration
- long-term safety
How Group23 Approaches Regenerative Medicine
At Group23 Sports Medicine, we focus on treatments supported by the strongest evidence:
- structured rehabilitation programs under physiotherapy supervision
- load management and strength training – ideally with strength and conditioning coach
- platelet-rich plasma (PRP)
- soft tissue adapted biocompatible hyaluronic acid injections → SportVis – see www.sportvis.ca
- high molecular weight cross linked hyaluronic acid injections → Monovisc (see www.monovisc.ca), Synolis VA (see www.synolis.com) and Durolane (www.durolane.ca/en/)
- Blood Flow Restriction (BFR) therapy (see https://group23.ca/personalized-blood-flow-restriction-program/)
- off the shelf and custom bracing strategies
These treatments currently have far stronger clinical evidence than experimental peptide therapies.
Key Clinical Takeaways for Patients
- Most peptides show promise in animal studies but lack strong human evidence
- Safety, dosing, and product quality remain uncertain = RISK
- Evidence-based treatments (PRP/SportVis combined with Physiotherapy) remain the most reliable approach today
Common Patient Questions About Peptides
Do peptides like BPC-157 actually work?
They show promising results in animal studies, but human evidence is limited, so we cannot confirm real clinical benefit.
Are peptides safe?
We don’t know!!
Safety is uncertain due to:
- lack of long-term data
- inconsistent dosing
- unregulated products
- which “peptide” you are referring to – there are a lot of different types!
Why don’t doctors prescribe them?
Because there is not enough high-quality human evidence to support routine clinical use and they are not currently approved for use in Humans by Health Canada or the FDA.
Are peptides better than PRP?
No — PRP and other regenerative therapies currently have much stronger clinical evidence.
Are collagen supplements the same thing?
No.
- Collagen = nutritional support with human evidence
- Injectable peptides = experimental signaling compounds
If I try peptides anyway?
Understand that:
- benefits are uncertain
- risks are unknown
- product quality varies
We encourage patients to keep us informed so we can support your care safely.
Peptide Research in Canada – Where do things stand in 2026?
While much of the conversation around peptides comes from social media and fitness communities, there is also ongoing scientific work — including here in Canada — exploring their potential role in medicine.
The Canadian Peptide Research Society is one organization helping advance peptide science in Canada through:
- research collaboration
- education and training
- scientific conferences and knowledge sharing
- exploration of emerging clinical applications
You can learn more about their work here:
Current research efforts in Canada and internationally are focused on:
- developing peptide-based medications (e.g., metabolic and hormone therapies)
- understanding how peptides influence tissue repair and inflammation
- advancing drug discovery and personalized medicine
However, in musculoskeletal medicine specifically:
- most research remains preclinical (animal and laboratory studies)
- high-quality human clinical trials are still limited
What this means for patients:
Peptide research is an active and evolving field, and Canada is contributing to its development.
At the same time: most peptide therapies discussed for injury recovery are still considered experimental and have not yet reached the level of evidence required for routine clinical use.
Deeper Dive into the Most Recent Publications
Injectable Peptide Therapy in Sports Medicine (2026)
Key findings:
- most peptides lack human clinical evidence
- significant research still needed before routine use
Systematic Review of BPC-157 (2025)
Key findings:
- consistent animal study benefits
- insufficient human clinical data
Mechanisms of BPC-157 (2026)
Key findings:
- angiogenesis and tissue repair pathways
- promising biology, limited clinical validation
