Chapter 7 Review

Comedogenic refers to ingredients that are likely to:

Oil-in-water emulsions generally refer to these:

Atomic number determines:

Which element is most abundant in the Earth's CRUST?

Proteins are responsible for:

Free radicals are chemically:

SPF testing is based on which rays?

True or false: Biochemistry deals with all matter that does not contain carbon.

When solvents are miscible, that means they are:

Why are C, O, H, N, and S important elements for estheticians?

Lipophilic means:

Two compounds blended physically create a:

Dyes added to products to enhance their appearance:

What do the number of electrons determine?

Which of the following is NOT a setting mask?

Gels have been formulated with a thickening agent to increase _____.

Water is known as the _____ solvent.

What charge do protons have?

The smallest complete unit of an element:

These are mixtures of medicinal agent with organic substances, usually with a thick texture of a paste:

0 up to 7 on the pH scale is:

This has a definite weight and volume but not a definite shape.

Humectants are ingredients that bind ____ to the skin.

There are _____ naturally occurring elements.

These are fats/oils converted to fatty acids by heat, then purified:

Organic chemistry deals with matter that:

This has a definite weight, volume and shape.

Fats, steroids and triglycerides that fill intercellular spaces:

What is reduction?

These CANNOT be broken down into simpler substances by a chemical reaction:

Aerosols are packaged under pressure and blended with a gas or:

This change creates a new substance with different material composition:

Water is usually the first ingredient in most skincare products because it is:

Distilled water has a pH of 7, meaning it is:

Broad-spectrum suncreens protect against:

Sticks are _____ or low-level water products used by rubbing directly onto skin.

This has a definite weight but not a definite volume or shape.

Enzymes are responsible for:

Ingredient category with many benefits, like anti-oxidant, anti-bacterial, anti-inflammatory:

Solvents are the _____ part of the solution.

The smallest particle of a compound with all its chemical properties:

These ingredients help prevent moisture loss by creating an occlusive barrier:

Stable atoms are not missing any ______ in their outermost shell.

Inorganic chemistry deals with matter that:

If a product has a pH of 8, how can it affect the skin?