D-limonene

D-limonene is a naturally occurring compound found mainly in the peels of citrus fruits like oranges, lemons, and grapefruits. It has a fresh, citrus scent and is commonly used in flavorings, cleaning products, and perfumes. Chemically, it's a type of hydrocarbon called a monoterpene. D-limonene is known for its potential antioxidant and anti-inflammatory properties, and because of its pleasant smell, it's popular as a natural fragrance. It’s generally considered safe, but some people may experience skin irritation or allergic reactions. Overall, D-limonene is valued for its aroma and possible health benefits.