Peptides are short chains of amino acids that act as biological messengers. Rather than forcing change, they signal the body to restore, repair, and optimise processes that naturally decline with age, injury, stress, or metabolic dysfunction.
Below is a concise overview of six clinically relevant peptides, what they’re used for, and why they matter.
BPC-157 (Body Protection Compound)
What it is
BPC-157 is a synthetic peptide derived from a naturally occurring protein found in gastric juice. It is best known for its role in tissue repair and gut integrity.
Indications
• Tendon and ligament injuries
• Muscle tears
• Joint pain
• Gut inflammation and permeability
• Post-surgical recovery
Key benefits
BPC-157 accelerates tissue healing by enhancing angiogenesis (new blood vessel formation), supporting collagen repair, and modulating inflammation. It is unique in its dual action on both musculoskeletal injuries and gastrointestinal healing, making it a cornerstone peptide in recovery protocols.
CJC-1295 + Ipamorelin
What they are
This peptide combination stimulates the body’s own growth hormone (GH) production rather than replacing it. CJC-1295 increases GH release, while Ipamorelin provides a selective, gentler GH pulse without excess cortisol or prolactin stimulation.
Indications
• Low energy and poor recovery
• Reduced muscle mass
• Increased body fat
• Poor sleep quality
• Age-related GH decline
Key benefits
Improved body composition, enhanced fat loss, increased lean muscle, better sleep, faster recovery, and improved skin and tissue regeneration. When properly dosed and monitored, this combination supports physiological optimisation rather than supraphysiological hormone exposure.
TB-500 (Thymosin Beta-4 fragment)
What it is
TB-500 is a synthetic version of a naturally occurring peptide involved in cell migration, inflammation control, and tissue regeneration.
Indications
• Muscle injuries
• Tendon and ligament damage
• Chronic inflammation
• Reduced mobility
Key benefits
TB-500 promotes cellular repair, reduces fibrosis, and improves flexibility and range of motion. It is often used alongside BPC-157 for more complex or chronic injuries, where deeper tissue repair is required.
MOTS-c
What it is
MOTS-c is a mitochondrial-derived peptide, meaning it originates from mitochondrial DNA rather than nuclear DNA. It plays a key role in metabolic regulation and cellular energy balance.
Indications
• Insulin resistance
• Metabolic dysfunction
• Fatigue
• Poor exercise tolerance
• Age-related metabolic decline
Key benefits
MOTS-c improves glucose utilisation, enhances insulin sensitivity, and supports mitochondrial efficiency. It is increasingly viewed as a metabolic longevity peptide, particularly valuable in patients struggling with metabolic health despite lifestyle interventions.
GHK-Cu (Copper Peptide)
What it is
GHK-Cu is a naturally occurring copper-binding peptide found in plasma, saliva, and urine. Levels decline significantly with age.
Indications
• Skin ageing
• Hair thinning
• Poor wound healing
• Inflammation
Key benefits
GHK-Cu stimulates collagen and elastin production, improves skin thickness and elasticity, supports hair follicle health, and has anti-inflammatory and antioxidant effects. It is widely used in skin rejuvenation protocols, both topically and systemically under medical guidance.
PT-141 (Bremelanotide)
What it is
PT-141 is a centrally acting peptide that works on melanocortin receptors in the brain rather than directly on sex hormones or blood flow.
Indications
• Low libido (men and women)
• Sexual arousal disorders
• Desire mismatch
Key benefits
PT-141 enhances sexual desire and arousal independent of testosterone or oestrogen levels. It is particularly useful in patients where hormonal levels are normal, yet libido remains low—highlighting the importance of neurochemical signalling in sexual health.
The Bigger Picture
Peptides are not shortcuts or miracle cures. Their real power lies in precision signalling, guiding the body back toward optimal function when combined with proper medical oversight, hormone optimisation, nutrition, training, and recovery strategies.When used responsibly, peptides represent a powerful tool in modern longevity and performance medicine—working with physiology, not against it.
