Guava has several benefits in cosmetology in addition to its health benefits. Its astringent properties help to prevent aging and tighten the skin while also adding shine. Here are a few pointers to keep in mind for glowing, healthy skin: Guava leaf infusion may be used to make a cleaning lotion. Using a cotton pad, gently apply to the face. Cut a guava in half and apply circular motions over the skin's targeted regions for an easy exfoliation. Crush the leaves of the guava tree and combine them with water to prevent acne and blackheads, then apply the mixture on the face.