Tripeptide-41, a peptide composed of three amino acids, has the ability to activate the NF-kB signaling pathway. Activation of this pathway helps promote the decomposition of fat, while inhibiting fat production by reducing the expression of C/EBP and accelerating lipid hydrolysis by increasing the concentration of cAMP. When applied to skin and body care products, tripeptide-41 can stimulate fat decomposition, promote tissue regeneration, enhance skin elasticity, reduce fat cell proliferation, and effectively prevent cholesterol accumulation.