Estheticians are primarily concerned with these light rays:

Estheticians focus on the aspects of skin care, beauty treatments, and the effects of various light rays on the skin. The correct answer emphasizes that their primary concern lies with infrared rays, ultraviolet rays, and visible light.

Infrared rays are known for their ability to penetrate the skin and produce heat, which can be beneficial in treatments like warming up tissues or promoting circulation. Ultraviolet rays are crucial to understanding sun exposure and skin protection as they can lead to tanning and skin damage. Visible light is important as it is the range of light that can be seen by the human eye and can also have effects on the skin, influencing treatment methods like LED therapy.

Understanding these types of light rays allows estheticians to provide effective skin treatments, educate clients about sun protection, and select appropriate products for various skin needs. This knowledge is essential for maximizing the benefits of light therapy treatments and ensuring skin health, which underlines the importance of the correct choice.