In cosmetics, WS-23 is used as a cooling agent to provide a refreshing and cooling sensation on the skin. It is a synthetic alternative to natural cooling agents like menthol, and its function is primarily to add a cooling effect to cosmetic products without the strong minty or camphoraceous aroma associated with menthol.

1. Skincare Products: WS-23 is used in various skincare products, such as lotions, creams, gels, and serums, to provide a cooling and soothing sensation upon application. This can be particularly beneficial for products aimed at reducing redness, inflammation, or irritation.

2. Lip Care Products: WS-23 is added to lip balms, lip glosses, and lipsticks to create a cooling effect when applied to the lips. It helps to give a refreshing feeling and can be especially pleasant during hot weather or as a part of lip plumping formulations.

3. Hair Care Products: Some hair care products, like scalp treatments or shampoos, may incorporate WS-23 to deliver a cooling sensation to the scalp or hair strands, promoting a refreshing and invigorating experience during use.

4. Personal Care Products: WS-23 can be found in various personal care products, such as body washes, shower gels, and intimate care products, to offer a cooling effect during cleansing or application.

5. After-Sun Products: Products designed to soothe and cool the skin after sun exposure, such as after-sun lotions or gels, may contain WS-23 to enhance their cooling properties.