Ethyl caffeate is widely studied for its antioxidant properties, making it valuable in cosmetic and skincare formulations. It helps protect the skin from oxidative stress and environmental damage, particularly from UV radiation, which contributes to anti-aging effects. Due to its anti-inflammatory activity, it is used in topical products designed to soothe irritated or sensitive skin.

In the pharmaceutical field, ethyl caffeate shows potential in inhibiting certain enzymes linked to inflammatory diseases and neurodegenerative disorders, suggesting possible use in drug development. It also exhibits antimicrobial activity against bacteria, fungi, and viruses, which supports its inclusion in formulations targeting infections, including oral care products for skin or mucosal infections.

Additionally, ethyl caffeate is explored as a natural preservative in food and personal care products because of its ability to prevent lipid oxidation and microbial growth, offering a safer alternative to synthetic additives. Emerging research indicates potential immune-boosting effects and anti-cancer activity at the cellular level, though further studies are needed.