An anti-inflammatory and anti-aging cosmetic for use after a medical aesthetic procedure is prepared from an active ingredient, an excipient, and water, and can be used in cosmetics. The excipient further includes a thickener, a humectant, and a preservative. The active ingredient includes at least an active substance that includes at least one of acetyl hexapeptide-8, oligopeptide-1, dipeptide diaminobutyroyl benzylamide diacetate, carnosine, palmitoyl tripeptide-1, ACE liposome, and bifida ferment lysate. An active agent may further be added to the active ingredient. The liquid composite has the advantages of no cytotoxicity, good safety, promotion of cell proliferation, excellent anti-inflammatory effect, effective anti-aging properties, no irritation to skin, and superior anti-inflammatory effect after medical aesthetic procedures.