Which of the following may impact skin texture when used improperly?

Chemotherapy is known to have a significant impact on skin texture due to its strong effects on the body's cells. Chemotherapy drugs target rapidly dividing cancer cells, but they can also affect other rapidly dividing cells, such as those in the skin. This leads to various side effects including thinning, dryness, rashes, or even changes in pigmentation. The combination of these side effects can dramatically alter the overall texture of the skin.

In contrast, while topical moisturizers, antibiotics, and vitamins can also influence skin health, their improper use typically does not lead to direct changes in skin texture to the same extent. For example, topical moisturizers may cause breakouts or irritation if not suited for the skin type, but they are not as likely to cause systemic changes in texture. Antibiotics can impact skin condition but are generally aimed at treating specific skin issues like acne rather than altering skin texture directly. Similarly, improper use of vitamins can lead to deficiencies or overdose consequences, but they do not have the widespread effects on skin texture that chemotherapy can.