Milady Esthetics State Board Practice Test

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Prepare for the Milady Esthetics State Board Test with quizzes. Use flashcards and multiple choice questions with hints and explanations. Excel in your exam!

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Which type of UV ray is known to penetrate directly into the dermis?

The correct answer is: UVA

UVA rays are known for their ability to penetrate deeply into the skin, reaching the dermis. Unlike UVB rays, which primarily affect the outer layers of skin and are responsible for causing sunburn and contributing to skin cancer, UVA rays can penetrate more deeply and are often associated with skin aging and long-term skin damage. They can also contribute to the development of skin cancer by affecting the DNA in skin cells, which is a significant concern for skin health. UVC rays are mostly absorbed by the Earth's atmosphere and do not reach the surface, making them less of a concern for skin exposure. The reference to UVD doesn't apply to established categories of UV radiation recognized in dermatology. Therefore, understanding the specific effects of UVA within the context of skin health and damage is crucial for estheticians and skin care professionals.