Bromelain (from Ananas comosus stem)

Bromelain is a cysteine protease enzyme complex extracted specifically from the stem of the pineapple plant (Ananas comosus), making it distinct from fruit-derived bromelain in its higher enzymatic activity and concentration. In cosmetic formulations, it functions as a biochemical exfoliant by selectively cleaving peptide bonds in keratin proteins, gently dissolving the intercellular 'glue' that holds dead skin cells together without the abrasive action of physical scrubs. Formulators favor stem-derived bromelain for its efficacy in enzyme peels, brightening serums, and gentle exfoliating masks, particularly for sensitive skin types that cannot tolerate AHAs or physical exfoliants, and it benefits from being a sustainable byproduct of the food processing industry.