Texas Barber Exam Practice Test 2026 – Complete Preparation Guide

Question: 1 / 400

Oily substances which lubricate the skin and preserves the softness of the hair is?

Skin

Decayed matter

Sebum

Sebum is the oily substance produced by the sebaceous glands, which lubricates the skin and preserves the softness of the hair. Option A, skin, is a broad term and does not specifically refer to the substance described in the question. Option B, decayed matter, is not a substance that is naturally produced by the body and therefore, not a correct answer. Option D, chemical hair relaxer or perm, is a man-made product used to alter the natural state of the hair and does not occur naturally in the body. Therefore, it is not the correct answer. The only viable option is C, sebum, which is a natural substance produced by the body that serves the purpose described in the question.

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Chemical hair relaxer or perm

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