Black cherry extract comes from the fruit of *Prunus serotina*, a wild cherry species. Its anthocyanin makeup sets it apart from tart cherry (*Prunus cerasus*). People often pick it for the deep purple color and antioxidant compounds. Concentrated juice, capsules, and freeze-dried powders are common forms.
Traditional use leans on black cherry for general antioxidant support. Some people also reach for it to ease joint discomfort. Solid evidence for *P. Serotina* fruit itself is thin compared to related species, though. Take it once or twice a day with food to help absorption.
Cautions: Anthocyanins can slow platelet activity. That effect matters if you take blood-thinning or antiplatelet drugs. This interaction is less common than vitamin K related issues. Get professional advice before use if you are on blood thinners or facing surgery.