Peptable

Comparison

CJC-1295 vs Matrixyl

Function

While CJC-1295 is used in research to chronically elevate endogenous growth hormone and IGF-1 levels, enabling studies of body composition, metabolic, and anti-aging effects of prolonged GH exposure10, Matrixyl is a widely used cosmetic peptide with evidence of stimulating extracellular matrix synthesis and reducing wrinkle appearance in skin-care formulations48.

Mechanism

While CJC-1295 works as a tetrasubstituted 29-amino-acid analog of GHRH(1–29) that acts as a potent agonist at the GHRH receptor and, in its DAC form, covalently binds serum albumin to extend half-life from minutes to days, resulting in sustained pulsatile GH and IGF-1 increase1082, Matrixyl is a palmitoylated pentapeptide, Pal-Lys-Thr-Thr-Lys-Ser (Pal-KTTKS), that acts as a matrikine, signaling to dermal fibroblasts to increase production of collagen, elastin, fibronectin, and other ECM components4858.

Receptor

CJC-1295

Growth hormone–releasing hormone receptor (GHRHR) on anterior pituitary somatotrophs1094103

Matrixyl

Not clearly established in the current dataset.

Organism or Origin

CJC-1295

Synthetic peptide based on human hypothalamic GHRH10120

Matrixyl

Synthetic lipopeptide derived from a collagen I C-terminal fragment sequence5158

Gene

CJC-1295

GHRH

Matrixyl

Not assigned in the current dataset.

Summary

CJC-1295 and Matrixyl are noticeably different, with limited direct overlap in their usual biological context. Their typical research and application settings separate fairly clearly: CJC-1295 is more often discussed in the realm of Metabolic and endocrine and Aging and longevity, whereas Matrixyl is more often associated with the realm of Dermatology and aesthetics. They also influence different molecular systems, with CJC-1295 tracking more closely to Growth hormone axis while Matrixyl centers more on Extracellular matrix proteins. CJC-1295 has a more synthetic analog origin, while Matrixyl is closer to synthetic design background and their development context also differs, with CJC-1295 in Preclinical development while Matrixyl is cosmetic grade. CJC-1295 carries d-amino acid substitution features, while Matrixyl instead reflects palmitoylation changes, while their sequence patterns also diverge, with CJC-1295 showing alpha-helical domain features and Matrixyl showing protein-mimetic sequence features.

Sources

10CJC-1295: Long-Acting GHRH Analog - Alpha Carbon Labs, https://alphacarbonlabs.com/blog/cjc-1295-long-acting-ghrh-analog
82CJC-1295 no DAC 5mg (Mod GRF 1-29), https://www.peptidesciences.com/mod-grf-1-29-5mg-cjc-1295-no-dac
94Growth-hormone-releasing hormone receptor - Wikipedia, https://en.wikipedia.org/wiki/Growth-hormone-releasing_hormone_receptor
103Growth-hormone-releasing hormone receptor - Wikipedia, https://en.wikipedia.org/wiki/Growth_hormone_releasing_hormone_receptor
120Growth hormone–releasing hormone - Wikipedia, https://en.wikipedia.org/wiki/Growth_hormone%E2%80%93releasing_hormone
48Palmitoyl Pentapeptide-4 - R&D PEPTIDE.ONE, https://rnd.peptide.one/product/palmitoyl-pentapeptide-4-pal-lys-thr-thr-lys-ser/
51[PDF] Acetyl tetrapeptide-5 - SkinMiles, https://skinmiles.com/wp-content/uploads/2017/12/Matriskin-Ingredients.pdf
58[PDF] Safety Assessment of Myristoyl Pentapeptide-4, Palmitoyl ..., https://www.cir-safety.org/sites/default/files/Pentapeptide%20Ingredients.pdf