moisturizing liquid; moisturizer
Refers to liquid skincare products that provide moisture, such as lotions, essences, or serums. Often used in cosmetic contexts.
Please apply moisturizing liquid immediately after washing your face.
乳液 is a milky lotion that provides moisture and oil, typically used after 化粧水. 保湿液 can be a broader category including serums and essences.
Compound of 保湿 (moisturizing) and 液 (liquid).