Arkansas Esthetician Practice Exam 2026 - Free Esthetician Practice Questions and Study Guide

Collagen is primarily known for its critical role in strengthening and giving structure to the skin. It is a protein that is abundant in connective tissue throughout the body, providing support and elasticity to the skin. As we age, collagen production decreases, which can lead to wrinkles and sagging skin, making it an essential component in maintaining a youthful appearance.

The other options focus on different functions within the body. While collagen supports the structural integrity of the skin and other tissues, the formation of muscles involves proteins like actin and myosin rather than collagen. Sebum production is carried out by sebaceous glands, which are not related to collagen. Additionally, sensation is primarily processed by nerve endings and receptors in the skin, independent of collagen’s structural role.