“It’s a type of plant that is considered bitter, pungent, and cold in traditional Chinese medicine (TCM) herbs. Its main focus is to ‘cool’ the body,” says Debbie Kung, DAOM, LAc, who specializes in facial rejuvenation. “In TCM, any skin eruptions are also known as ‘heat toxicity,’ and this herb helps remedy it. It helps to clear heat, hence helping skin issues such as eczema and acne.” These products are typically marketed to those who have redness-prone skin due to acne, inflammation, sensitivities, and so on. Studies have shown centella asiatica can help with a host of other skin benefits1, too: hydration, promote fibroblast proliferation (or, the things in our cells that create collagen and elastin), and aid in wound healing. So while the ingredient’s main function is redness reduction, really anyone looking for a soothing cream could benefit from the active. It’s no wonder it’s had such a long history of use—here, our five favorite options. Cicapair Tiger Grass Color Correcting Treatment, Dr. Jart ($52) Cica Gel With Bija Seed Oil, Innisfree ($25) Super Reboot Resurfacing Mask, Peach & Lily ($43) Balancium Comfort Ceramide Cream, COSRX ($26) Essential Stressed Calming Cotton Mask, AHC ($24.13)