The Clavicular Peptide Stack: Every Compound Explained
A complete breakdown of the compounds in the Clavicular aesthetic research stack — mechanism of action, research background, and the science behind each ingredient.
What is the Clavicular Stack?
The Clavicular Stack is QSC’s proprietary aesthetic research peptide combination targeting bone density, collagen synthesis, skin quality, melanogenesis, and muscle tissue remodelling simultaneously. It represents a multi-pathway approach to appearance-related research — distinct from single-compound studies in that it investigates compound interaction effects across parallel tissue targets.
This page breaks down every compound, its mechanism, and the research basis for its inclusion.
Stack Components
BPC-157 — Tissue Architecture & Vascularisation
BPC-157 (Body Protection Compound-157) is a 15-amino acid gastric peptide that activates NOS, upregulates VEGF and EGF receptor expression, and directly stimulates tenocytes and fibroblasts. In the context of aesthetic research, the key mechanism is angiogenesis and fibroblast recruitment — increasing blood supply and structural protein production in connective tissue.
Research relevance: dermal fibroblast VEGF upregulation → improved skin vascularisation and structural integrity. Tendon and ligament studies showing fibroblast-mediated collagen remodelling.
GHK-Cu — Collagen Synthesis & Skin Remodelling
GHK-Cu (glycine-histidine-lysine copper tripeptide) is a naturally occurring copper peptide with documented effects on collagen and elastin synthesis, MMP (matrix metalloproteinase) regulation, and antioxidant gene expression. It upregulates collagen I, III, and IV in dermal fibroblasts and downregulates TGF-β1-mediated scarring pathways.
Key research endpoint: skin biopsy collagen density and elastin content — the molecular basis for the dermal structural improvement seen in GHK-Cu research.
IGF-1 LR3 — Muscle & Tissue Anabolism
IGF-1 LR3 (Long R3 IGF-1) is the extended-half-life analog of IGF-1 with reduced IGFBP binding — producing 20–30 hour activity vs ~12 minutes for native IGF-1. IGF-1R activation drives satellite cell activation, myogenic differentiation, and protein synthesis via mTOR/S6K1 pathway. Relevant to muscle tissue research and the structural remodelling component of the stack.
Melanotan II — Melanogenesis
Melanotan II is an MC1R/MC4R agonist. MC1R activation in melanocytes triggers eumelanin production via cAMP-mediated tyrosinase upregulation — producing skin pigmentation. MC4R activity contributes to central appetite and libido effects. The melanogenesis mechanism is the primary research endpoint for the skin tone component of aesthetic research protocols.
Frequently Asked Questions
What compounds are in the Clavicular Stack?
The Clavicular Stack includes BPC-157 (tissue repair/vascularisation), GHK-Cu (collagen/ECM synthesis), IGF-1 LR3 (muscle satellite cell activation), and Melanotan II (melanogenesis). Each targets a distinct tissue pathway.
Is the Clavicular Stack a QSC proprietary product?
Yes — the Clavicular Stack formulation is QSC-specific. Individual compounds are available separately; the stack combines them in a researched multi-pathway protocol.
How does the Clavicular Stack differ from ADAMAX or KLow80?
Different research targets: ADAMAX is a cognitive performance blend targeting BDNF/dopamine pathways; KLow80 targets metabolic and weight management pathways; Clavicular targets aesthetic/appearance research — skin, muscle, melanogenesis, and connective tissue.