Palmitoyl Tripeptide-8 is a synthetic peptide with anti-inflammatory properties that can reduce UV-induced inflammatory responses, lower interleukin-1 (IL-1) levels, and promote interleukin-8 (IL-8) secretion, helping to soothe irritated skin. It can penetrate deep into the skin's surface, regulate protein synthesis, repair damaged skin, and enhance the skin's ability to resist irritation.