Rosmarinic acid is a water-soluble natural phenolic acid compound isolated from rosemary, a plant of the Lamiaceae family. It is widely distributed and
mainly exists in a variety of plants of the Lamiaceae family, Boraginaceae, Cucurbitaceae, Tiliaceae, and Umbelliferae. The highest content is found in
plants of the Lamiaceae family and Boraginaceae.

Rosmarinic acid is a natural antioxidant with strong antioxidant activity. Its antioxidant activity is stronger than that of vitamin E, caffeic acid, chlorogenic
acid, folic acid, etc., and helps prevent cell damage caused by free radicals.

Rosemarinic acid has a very broad application prospect and market value. Its main application areas are:

1. Food field: Rosemarinic acid, as a natural and highly effective antioxidant, can replace BHA and BHT in animal and vegetable oils, dairy products,
oil-rich foods, candies and baked foods; it can also be used as a spice in various soups and seasoning foods; and it also has antiseptic and antibacterial
effects.

2. Health care products field: refreshing.

3. Cosmetic field: used in skin care products, it can remove spots, resist oxidation, increase skin elasticity, and delay aging; used in shampoo and hair
care products, it can promote scalp blood circulation, improve hair loss, reduce the occurrence of dandruff, stimulate hair growth, and moisturize hair.
Therefore, rosemarinic acid can be used as an excellent additive in cosmetics.