Scientists have identified three new indole metabolites produced by the blood-borne bacterium Paracoccus sanguinis with significant anti-aging effects. These molecules reduced inflammation, oxidative stress and collagen-damaging protein activity in cultures of human skin cells exposed to stress. Among the 12 indoles tested, three, including two previously unknown, were the most effective in reducing harmful reactive oxygen species and inflammatory proteins. Research has shown that these compounds can protect the skin from aging at the cellular level. The study was published in the Journal of Natural Products and suggests the potential of these molecules as a basis for future anti-aging skin therapies. The research was supported by the National Research Foundation of Korea and other institutions. These discoveries open a new avenue for the development of therapies aimed at improving the health and youthful appearance of the skin.