Texas Manicurist Written Practice Exam 2026 – Complete Prep Resource

Question: 1 / 400

Which ingredient is commonly found in nail strengtheners?

Vitamin E

Formaldehyde

The ingredient commonly found in nail strengtheners is formaldehyde. This compound is often included in nail care products due to its ability to harden nails, making them less prone to chipping and breaking. Formaldehyde functions as a strengthening agent by forming cross-links in the proteins of the nail, which enhances their structure and resilience.

While other ingredients like Vitamin E are beneficial for moisturizing and conditioning nails, they do not specifically contribute to strength in the same way formaldehyde does. Vinegar, on the other hand, is usually used for its cleansing properties rather than for strengthening nails. Lanolin is a moisturizing agent, often used in creams and lotions, which aids in hydration but does not enhance nail strength. These distinctions highlight why formaldehyde is specifically recognized for its role in strengthening nails, making it a common choice in nail strengtheners.

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Vinegar

Lanolin

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