Oregon Esthetician State Board

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Prepare for the Oregon Esthetician State Board Exam with engaging quizzes. Our questions, complete with hints and explanations, will equip you with the knowledge you need to excel. Start your journey to becoming a licensed esthetician in Oregon today!

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Lanolin is derived from which source?

Aluminum sulfate
Sheep's wool
Cucumber extract
Eucalyptus leaves

The correct answer is: Sheep's wool

Lanolin is derived from sheep's wool, specifically the natural oil secreted by the sebaceous glands of the sheep. This waxy substance helps to protect their wool and skin from moisture and environmental elements. In skincare and cosmetic products, lanolin serves as an excellent emollient and moisturizer, providing hydration and creating a barrier to prevent moisture loss in the skin. Its ability to retain water makes it a popular ingredient in various creams, lotions, and ointments aimed at soothing dry skin and promoting skin health. Other choices do not align with the source of lanolin; aluminum sulfate is a chemical compound used in various industrial applications, cucumber extract is derived from cucumbers and is known for its hydrating properties, while eucalyptus leaves are extracted for their essential oils and are used primarily for their aroma and medicinal benefits.