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Six hubs organise the condition-and-goal guides on Peptide Authority. Each hub frames the regulatory and evidence picture across a related group of conditions; the spokes below each hub address a distinct search intent with its own evidence base and UK care pathway. Pick a hub to start, or open a specific spoke directly.
Joints, tendons, ligaments, bone, post-surgery
Conditions where peptide research has focused on tissue repair, tendon and ligament healing, joint inflammation, disc health, and post-surgical recovery.
12 spokes in this hub →GLP-1 medicines, blood sugar, PCOS, energy
Weight management, type 2 diabetes, PCOS, blood-sugar regulation, and energy metabolism — including licensed GLP-1 medicines and the unlicensed grey-market alternatives.
9 spokes in this hub →Cognitive, anxiety, depression, neuropathy, migraine
Cognitive enhancement, anxiety and stress, depression, neuropathy and neuropathic pain, migraine, and brain-health peptides researched in the UK and EU.
7 spokes in this hub →Autoimmune, long COVID, Lyme/PTLDS, immune modulation
Immune-modulating and anti-inflammatory peptides researched for autoimmune conditions, long COVID, post-Lyme syndromes, and broader chronic inflammation.
7 spokes in this hub →Skin health, pigmentation, cosmetic peptides
Topical and cosmetic peptide research for skin firmness, pigmentation, wrinkles, and hair-loss adjuncts. Distinct from the unlicensed injectable cosmetic peptides covered in Safety Centre.
2 spokes in this hub →Fertility, menopause, ED, thyroid
Hormonal and reproductive-health peptide research — fertility, menopause, erectile dysfunction, thyroid function — and where licensed medicines vs research peptides sit.
7 spokes in this hub →Explore peptides researched for tendon healing and injury recovery. Compare BPC-157, TB-500, and other peptides studied for tendon repair.
Explore peptides researched for muscle growth, recovery, and body composition. Compare growth hormone secretagogues, IGF-1, and other anabolic peptides.
Explore peptides researched for joint health, cartilage repair, and osteoarthritis. Compare BPC-157, TB-500, GHK-Cu, and other peptides studied for joint support.
Explore peptides researched for athletic performance and recovery. Compare BPC-157, TB-500, IGF-1 LR3, and other peptides studied for injury recovery and muscle growth.
Explore peptides researched for post-surgery recovery and wound healing. Compare BPC-157, TB-500, GHK-Cu, Thymosin Beta-4, and CJC-1295 for surgical recovery.
Explore peptides researched for bodybuilding and muscle growth. Compare CJC-1295, ipamorelin, MK-677, IGF-1 LR3 and more. WADA status and safety info.
Explore peptides researched for knee pain and joint health. Compare BPC-157, TB-500, GHK-Cu and other peptides studied for osteoarthritis and knee injuries.
Explore peptides researched for back pain and spinal health. Compare BPC-157, TB-500, GHK-Cu and other peptides studied for disc and spinal conditions.
Research on peptides for osteoarthritis including BPC-157, TB-500, and GHK-Cu. Evidence-based UK guide for joint health.
Research on peptides for intervertebral disc degeneration and chronic back pain. BPC-157, TB-500, and GH secretagogue evidence reviewed.
Research on peptides for frozen shoulder including BPC-157 and TB-500. Evidence-based UK guide for adhesive capsulitis recovery.
Research on peptides for bone density including calcitonin, PTH, and GH secretagogues. UK NHS osteoporosis context and NICE guidelines.
Comprehensive guide to peptides researched for fat loss and metabolism. Compare semaglutide, AOD-9604, tesofensine, and other weight management peptides.
Explore peptides researched for blood sugar regulation, insulin sensitivity, and type 2 diabetes management. Compare semaglutide, tirzepatide, liraglutide, and amylin analogues.
Explore peptides researched for cardiovascular health, including BPC-157, MOTS-c, Thymosin Beta-4, Semaglutide, and VIP. Evidence-based guide to cardiac peptide research.
Explore peptides researched for liver health, hepatoprotection, and detoxification. Compare BPC-157, Thymosin Alpha-1, GHK-Cu, and LL-37 for liver support.
Explore peptides researched for weight loss in the UK. Compare Wegovy, Mounjaro, AOD-9604 and other weight loss peptides. Evidence-based guide with NHS and NICE context.
Explore peptides for diabetes and blood sugar control in the UK. GLP-1 agonists for type 2 diabetes, NICE guidelines, NHS prescribing pathways, and clinical evidence.
Explore peptides researched for PCOS management. Compare semaglutide, tirzepatide, kisspeptin-10, MOTS-c and other peptides studied for PCOS symptoms.
Explore peptides researched for chronic fatigue syndrome and CFS/ME. Compare MOTS-c, SS-31, humanin, thymosin-alpha-1 and other mitochondrial peptides.
Research on peptides for heart health including natriuretic peptides, BPC-157, and GLP-1 agonists. UK cardiovascular disease context.
Explore nootropic peptides researched for cognitive enhancement, memory, focus, and neuroprotection. Compare Semax, Selank, BDNF, and other brain peptides.
Explore peptides researched for sleep quality, deep sleep enhancement, and circadian rhythm support. Compare DSIP, CJC-1295, Ipamorelin, and other sleep-related peptides.
Explore peptides researched for anxiety and stress reduction. Compare Selank, Semax, DSIP, and other peptides studied for anxiolytic and neuroprotective effects.
Explore peptides researched for depression and mood disorders. Compare Selank, Semax, BPC-157, DSIP and other peptides studied for mood regulation.
Explore peptides researched for neuropathy and nerve health. Compare BPC-157, ARA-290, Semax and other peptides studied for nerve repair and pain relief.
Research on peptides for migraine prevention including CGRP antagonists, BPC-157, and neuropeptide approaches. UK NHS migraine context.
Research on peptides for neuropathic pain including BPC-157, ARA-290, and Selank. UK-focused evidence for nerve pain management.
Explore peptides researched for immune modulation and support. Compare thymosin alpha-1, LL-37, BPC-157, and other immunomodulatory peptides.
Explore peptides researched for autoimmune conditions and immune modulation. Compare Thymosin Alpha-1, KPV, BPC-157, Selank, and LL-37 for immune regulation.
Explore peptides researched for IBS and digestive disorders. Compare BPC-157, KPV, VIP and other peptides studied for gut inflammation and motility.
Explore peptides researched for respiratory and lung health. Compare VIP, LL-37, thymosin-alpha-1 and other peptides studied for COPD and lung conditions.
Explore peptides researched for Long COVID recovery — thymosin-alpha-1, BPC-157, MOTS-c, SS-31 and selank. UK-focused guide with NHS context and emerging evidence.
Explore peptides researched for fibromyalgia and chronic pain — BPC-157, selank, DSIP, thymosin-alpha-1 and beta-endorphin. UK-focused guide with NICE guidelines context.
Explore peptides researched for Lyme disease and PTLDS — LL-37, thymosin-alpha-1, BPC-157, selank and defensins. UK-focused guide with emerging preclinical evidence.
Explore peptides researched for anti-ageing, longevity, and cellular health. Compare Epitalon, GHK-Cu, MOTS-c, and other longevity peptides.
Explore peptides researched for skin pigmentation and tanning, including Melanotan II, Alpha-MSH, PT-141, and GHK-Cu. Includes important safety warnings.
Explore peptides researched for sexual health, libido, and function. Compare PT-141, Melanotan II, Kisspeptin, and other compounds studied for sexual wellness.
Explore peptides researched for fertility and reproductive health, including Kisspeptin-10, GnRH, PT-141, Oxytocin, and CJC-1295. HPG axis mechanisms explained.
Explore peptides researched for thyroid health. Compare TRH, thymosin-alpha-1, CJC-1295 and other peptides studied for Hashimoto's and thyroid function.
Research on peptides for erectile dysfunction including PT-141, Melanotan II, and Kisspeptin. UK-focused evidence review for sexual health.
Research on peptides for fertility including Kisspeptin, Gonadorelin, and GnRH analogues. UK NHS and private fertility treatment context.
Research on peptides for menopause symptoms including hot flashes, bone loss, skin ageing, and mood changes. UK NHS context included.
Research on peptides for thyroid function including TRH, thyroid peptide bioregulators, and GH interactions. UK NHS thyroid context.
Explore peptides researched for hair growth and follicle regeneration. Compare GHK-Cu, Thymosin Beta-4, and other peptides studied for hair restoration.
Comprehensive guide to peptides for skin health, anti-ageing, and wound healing. Compare GHK-Cu, Matrixyl, Argireline, BPC-157, and other proven cosmetic peptides with research evidence.
Explore peptides researched for gut healing, digestive repair, and intestinal health. Compare BPC-157, LL-37, and other peptides studied for gastrointestinal conditions.
Comprehensive guide to cosmetic peptides for wrinkle reduction. Compare Argireline, SNAP-8, Leuphasyl, Matrixyl and GHK-Cu for expression lines and collagen restoration.
Comprehensive guide to collagen-stimulating peptides for skin firmness and elasticity. Compare GHK-Cu, Matrixyl, and other proven peptides that restore dermal structure and combat sagging.
Explore peptides researched for wound healing and tissue repair. Compare BPC-157, TB-500, GHK-Cu, LL-37, and Thymosin Beta-4 for wound recovery support.
Explore anti-inflammatory peptides including BPC-157, Thymosin Alpha-1, LL-37, KPV, and VIP. Research-based guide to peptides studied for inflammation control.
Explore peptides researched for bone health, fracture healing, and osteoporosis. Compare BPC-157, TB-500, GHK-Cu, IGF-1 LR3, and growth hormone peptides.
Explore peptides researched for anxiety relief and stress management. Compare Selank, DSIP, Semax, and Oxytocin for anxiolytic and calming effects.
Explore peptides researched for energy, metabolism, and mitochondrial function. Compare MOTS-c, AOD-9604, CJC-1295, Ipamorelin, and Tesofensine.
Educational content only: These guides provide research-based information for educational purposes. No peptides discussed are approved treatments for any condition. Always consult qualified healthcare professionals before considering any peptide. See the Safety Centre and UK Law hub.