Acetyl tetrapeptide-5
is used in cosmetic eye formulations to decrease puffiness, eye bags, and dark circles by reducing edema and protecting proteins such as SOD from glycation
Alanine
Ala / A · hydrophobic residue · neutral charge
AOD-9604
is studied as an anti-obesity peptide that can reduce weight gain and increase fat oxidation in obese animal models with generally neutral effects on IGF-1 and glucose metabolism in early human trials
Arginine
Arg / R · basic residue · positive charge
Argireline
is a topical cosmetic peptide reported to decrease dynamic wrinkles by partially mimicking the mechanism of botulinum toxin in a non-invasive manner
Asparagine
Asn / N · polar residue · neutral charge
Aspartic acid
Asp / D · acidic residue · negative charge
BPC-157
is investigated for accelerating healing of gastrointestinal mucosa, tendons, ligaments, bone, and nervous tissue in preclinical models, with anti-inflammatory and pro-angiogenic effects
Comparison
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, Thymosin Beta-4 promotes wound healing, angiogenesis, and tissue regeneration in preclinical models via effects on cytoskeleton dynamics, cell migration, and anti-apoptotic pathways25579.
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, Thymosin Beta-4 is an endogenous 43-amino-acid actin-sequestering peptide that maintains a pool of G-actin monomers and regulates actin polymerization, thereby influencing cell migration, proliferation, and differentiation25579.
CJC-1295
GHRH
Thymosin Beta-4
TMSB4X
CJC-1295 and Thymosin Beta-4 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 Thymosin Beta-4 is more often associated with the realm of Musculoskeletal health, Cardiovascular health, and Dermatology and aesthetics. Their biological logic is quite different: CJC-1295 is a receptor agonist and a hormone analog, whereas Thymosin Beta-4 is a signaling modulator and a protein interaction inhibitor. CJC-1295 has a more synthetic analog origin, while Thymosin Beta-4 is closer to natural endogenous background with CJC-1295 in Preclinical development and Thymosin Beta-4 in Clinical phase 2. CJC-1295 takes the form of a peptide conjugate, whereas Thymosin Beta-4 is closer to a linear peptide, CJC-1295 carries d-amino acid substitution features, while Thymosin Beta-4 instead reflects acetylation changes; while their sequence patterns also diverge, with CJC-1295 showing alpha-helical domain features and Thymosin Beta-4 showing protein-mimetic sequence features.