Certain peptides have been researched for their roles in collagen production, skin regeneration, and joint tissue repair. The pages below cover the published science — not clinical recommendations or prescribing guidance.
Ala-Glu-Asp-Arg, Cartilage bioregulator, Khavinson cartilage peptide
A Khavinson peptide bioregulator targeting cartilage tissue. Promotes chondrocyte activity and cartilage matrix regeneration; studied for osteoarthritis and joint degeneration.
Copper Peptide, Tripeptide-1 Copper, Glycyl-L-Histidyl-L-Lysine Copper
GHK-Cu (copper peptide tripeptide-1) is a naturally occurring plasma copper complex with broad tissue-remodelling activity. It is one of the most extensively researched peptides for skin health, wound healing, and collagen synthesis. Research has explored its effects across dermatological, cosmetic, and systemic contexts, including roles in joint tissue maintenance and anti-inflammatory signalling.
Acetyl Tetrapeptide-2, Tyr-D-Arg-Phe-beta-Ala-NH2
A neuromodulating peptide that reduces expression lines via the enkephalin pathway, distinct from SNARE-inhibiting peptides (Argireline, SNAP-8). Complements those actives through a different mechanism.
Palmitoyl Pentapeptide-4, Pal-KTTKS, Palmitoyl Lysyl-Threonyl-Threonyl-Lysyl-Serine
The original and most clinically validated cosmeceutical peptide. A fatty acid-conjugated collagen fragment that directly stimulates fibroblasts to produce new collagen. Validated in multiple clinical trials.
Pal-GHK, Biopeptide CL, SYN-COLL
A fatty acid-conjugated tripeptide that stimulates collagen production in dermal fibroblasts. Improves skin firmness and reduces wrinkle depth with topical use.
Palmitoyl Tetrapeptide-7, Pal-GQPR, Matrixyl 3000 component
The anti-inflammatory partner to Matrixyl. Together they form Matrixyl 3000. Reduces skin inflammation, suppresses IL-6, supports matrix integrity, and enhances collagen production.
Val-Glu-Pro-Arg, Joint bioregulator, Khavinson joint peptide
A Khavinson bioregulator for bone and joint tissue. Complements Cartalax with activity in both cartilage and bone compartments; studied for degenerative joint disease and osteoporosis.
Acetyl Octapeptide-3, Leuphasyl
An enhanced version of Argireline with two additional amino acids for improved SNARE complex inhibition. More potent wrinkle-relaxing effect for expression lines.
Thymosin Beta-4 Fragment, TB4 500-509, LKKTETQ
The active fragment of TB-500 (Thymosin Beta-4) specifically studied for hair regrowth and wound healing. Promotes follicle activation and skin repair.
Provider listings are for directory purposes only — not endorsements or treatment recommendations.
US-based online platform offering research-grade peptides with third-party COA documentation. Ships to US, CA, AU, GB, and NZ.
London-based longevity clinic offering telehealth consultations across the UK and EU, focused on cognitive health, skin and joint peptides, and longevity protocols.
FDA-registered 503A compounding pharmacy supplying clinician-prescribed peptides with third-party potency and sterility testing. US orders only.
Telemedicine healthcare provider offering personalized hormone therapy, weight management, and wellness treatments across 45 states plus DC.
Ascension Peptides supplies high-purity research peptides including GLP-1, BPC-157, and custom blends, lab-tested to 99%+ purity.
Aspire Health provides personalized telehealth care for weight management, hormone therapy, peptides, and functional medicine across multiple states.
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