Lemon juice is a natural what?

• A. Glycerin
• B. Moisturizer
• C. Exfoliant
• D. Astringent

Answer: (D)

Lemon juice acts as astringent because its acidity helps tighten and firm the skin by causing proteins in the surface to tighten and oils to reduce, giving a temporary constricted feel and less visible pores. This astringent effect is what skincare products try to achieve to control oiliness. It isn’t glycerin, which is a humectant that draws water into the skin; it isn’t a moisturizer, which is designed to hydrate and soften; and while lemon juice contains acids, it isn’t used as a controlled exfoliant in standard skincare due to irritation and photosensitivity risks. So the natural property most fitting here is an astringent.