Texas Barber License Practice Examination

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What are the two general classifications of hair processors?

Thio products
Petrolatum
Full strength ammonia
Sodium hydroxide

The correct answer is: Sodium hydroxide

Hair processors are products used in the hair care industry to chemically alter or treat hair. These products can be categorized into two general classifications thio products and sodium hydroxide products. Thio products are responsible for creating curls and waves in hair, while sodium hydroxide products are used for straightening or relaxing hair. Petrolatum and full strength ammonia are not hair processors and do not fall under either of these two categories. Petrolatum is a mineral oil-based product used for moisturizing and conditioning hair, while full strength ammonia is a strong alkaline ingredient often used as a color developer in hair dye products. Therefore, they are not correct options as they do not belong to the two general classifications of hair processors.