Molly Stack

The Molly Stack combines three of the most researched compounds in metabolic and aesthetic biology into a focused bundle for researchers studying fat loss signaling, cellular skin repair, and melanocortin receptor activity simultaneously. Each compound targets a distinct but complementary pathway — making this one of the most well-rounded aesthetics-oriented research stacks available.

Burn Blend (Retatrutide + Tirzepatide 10mg/10mg) — The metabolic core of this stack. Burn Blend pairs two of the most potent GLP-1 axis compounds available — Retatrutide, a triple GLP-1/GIP/glucagon receptor agonist, and Tirzepatide, a dual GLP-1/GIP agonist. Together they engage multiple receptor pathways governing appetite regulation, adipose tissue reduction, energy expenditure, and glucose homeostasis. Research has focused on their synergistic effects on body composition, making this combination the most comprehensive metabolic signaling tool in the Kalyx catalog.

GHK-CU (Copper Peptide) 100mg — The skin and tissue repair component. GHK-CU is a naturally occurring copper-binding tripeptide with one of the most extensive research histories of any peptide in its class. Studies have investigated its role in stimulating collagen and elastin synthesis, accelerating wound healing, activating skin remodeling pathways, reducing oxidative stress, and upregulating genes associated with tissue regeneration and anti-inflammatory activity. At the cellular level, GHK-CU has been shown to interact with over 4,000 human genes — making it a uniquely broad research tool for studying skin biology, cellular aging, and connective tissue repair. The 100mg vial provides substantial research capacity for extended study.

MT-2 (Melanotan II) 10mg — The melanocortin activator. MT-2 is a synthetic analogue of alpha-melanocyte-stimulating hormone (α-MSH), studied for its activity across multiple melanocortin receptor subtypes including MC1R, MC3R, and MC4R. Beyond its well-documented role in pigmentation research, MT-2 has been investigated for its effects on appetite modulation and energy balance through central melanocortin pathways — complementing Burn Blend’s peripheral metabolic activity through an independent receptor system. Its multi-receptor profile makes it a valuable compound for researchers studying the intersection of pigmentation biology and systemic energy regulation.

Each component is supplied as a lyophilized vial. Supplied for research purposes only. Not intended for human use.