Because psoriasis is an immune disease, the idea of immune modulation is tempting, but modulation is not the same as the targeted IL-17/IL-23 blockade that works, and a peptide that nudges immunity broadly could just as easily do nothing or worsen an autoimmune process
One of them compared 3ppm Pal-KTTKS with 700 ppm (0.07%) retinol and found that they showed similar wrinkle improving ability with the peptide showing better skin tolerability
Tsumoto and Takeuchi, 2024
The four peptides (Argireline, Acetyl Tetrapeptide-5, Palmitoyl Hexapeptide-12, Glutathione) each address a different mechanism that becomes more relevant as oestrogen declines
Myeloid PTEN deficiency aggravates renal inflammation and fibrosis in angiotensin II-induced hypertension
An 8-week on, 4-week off schedule provides predictable timing