... stimulates its renewal. Matrix metalloproteinase-9 (MMP-9) – an enzyme that breaks down components of the extracellular matrix. In controlled amounts, MMP-9 aids skin remodeling by removing damaged structures and stimulating regeneration. Fc receptor IgA (FCAR) – a fragment of an immune receptor linked to the antibody IgA. It regulates local immune responses in tissues; likely improves the micro-inflammatory balance, creating conditions for the recovery of skin cells. Chitinase-3-like protein 1 (CHI3L1,...