Washington Master Esthetics Practice Exam

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Prepare for the Washington Master Esthetics Exam with comprehensive materials. Study using flashcards and multiple choice questions, each providing detailed hints and explanations. Ensure success in your licensing exam!

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Which part of the body contains approximately 50% of the hyaluronic acid found in humans?

Skin
Eyes
Joints
Liver

The correct answer is: Skin

The skin contains approximately 50% of the hyaluronic acid found in humans. This powerful humectant plays a crucial role in maintaining skin hydration and elasticity. In the dermis, hyaluronic acid absorbs moisture and binds it to collagen and elastin, contributing to the skin's plump appearance and overall texture. While other areas of the body, such as the eyes, joints, and liver, also contain hyaluronic acid, they do not hold the same proportion as the skin. In the eyes, hyaluronic acid is vital for moisture and lubrication, and in joints, it acts as a lubricant and shock absorber. The liver stores some hyaluronic acid, but again, not to the extent found in the skin. Understanding the primary role of hyaluronic acid in maintaining skin health is essential for estheticians, as it influences various skin treatments and product formulations.