Chemical Texture Service 2

Front

What tough exterior layer of the hair has the purpose of surrounding the inner layers and protecting the hair from damage?

Back

cuticle

Front

Which layer of the hair is located directly beneath the cuticle layer and is responsible for the incredible strength and elasticity of human hair?

Back

cortex

Front

Which layer of hair is the innermost layer of the hair, and often called the pith or core of the hair?

Back

medulla

Front

The term pH is an abbreviation used for potential ______, and the symbol pH represents the quantity of _________ ions in solution.

Back

hydrogen; hydrogen

Front

The _____ measures the acidity and alkalinity of a substance by measuring the quantity of hydrogen ions it contains.

Back

pH scale

Front

The range of numbers used in the pH scale is _______

Back

0 to 14

Front

Chemical hair texturizers temporarily raise the pH of the hair to an alkaline state in order to ______.

Back

soften and swell the shaft

Front

In the restructuring process, coarse, resistant hair with a strong compact cuticle requires a chemical solution that is ________.

Back

highly alkaline

Front

Which compounds are made up of carbon, oxygen, hydrogen, nitrogen, and sulfur?

Back

Amino acids

Front

Which chemical bonds, also known as end bonds, join amino acids together, end-to-end like beads?

Back

Peptide bonds