Skin care products are developed to help the skin in several ways.Which of the following is not used as an additive?

Question

Quizplus · Accepted Answer

Melatonin is a hormone naturally produced by the body to regulate sleep, it is not typically used as an additive in skin care products. Sunscreen is used to protect the skin from the damaging effects of UV rays, alpha-hydroxy acids help exfoliate and improve skin texture, and tretinoin is a form of vitamin A that can help with acne and anti-aging.

Skin Care Products Are Developed to Help the Skin in Several