Colorado Cosmetology Written Practice Exam

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onychorrhexis is caused by injury to the matrix, excessive use of cuticle removers, harsh cleaning agents, aggressive filing techniques, or:

Lack of moisture
Heredity
Improper diet
Age

The correct answer is: Lack of moisture

Onychorrhexis is a condition characterized by the presence of ridges or brittle nails that tend to break easily. This condition is commonly caused by external factors such as injury to the nail matrix, excessive use of cuticle removers, harsh cleaning agents, and aggressive filing techniques. These can lead to the weakening of the nail structure and cause it to break or split. While options B, C, and D may contribute to the overall health of the nails, they are not direct causes of onychorrhexis. Lack of moisture, on the other hand, can directly affect the strength and flexibility of the nails, making them more prone to breakage. Therefore, it is important to keep the nails well-hydrated to prevent onychorrhexis.