Cosmetic Chemistry
Which type of UV ray is longer-penetrating and causes collagen breakdown?
UVA (Aging Rays)
Masks with the primary purpose of absorbing excess oil, tightening and refining the pores and aiding in preventing clogging are:
clay/mud masks
Which cosmetic ingredient helps to prevent moisture loss?
emollient
Which of the following terms means the product is less likely to provoke an allergic reaction?
hypoallergenic
Also known as ascorbic acid, this ingredient is full of antioxidants.
Vitamin C
A substance that is able to dissolve another substance is called a(n):
Solvent
A granular scrub used to assist in physically removing dead skin cells is an example of what type of exfoliant?
mechanical (physical)
Which ingredient is found in the majority of cosmetic skin care products?
Water
How are ingredients listed on a product label?
descending order by weight concentration (from the highest amount of an ingredient to the least amount of an ingredient)
This ingredient is hydrating an exfoliating at the same time.
Lactic Acid
Products that are produced using ingredients that have been grown without pesticides, herbicides or genetic modifications are called:
organic
SPF testing is based on which type of UV rays?
UVB (Burning Rays)
What type of ingredients draws water to the skin? Some examples are hyaluronic acid and glycerin.
Humectants
Ingredients that help hold the product together, provide a base and contain a preservative system are called:
functional
This mask is great for dry skin types and penetrates deep into the skin.
Cream Mask
Formed when two or more non-mixable substances (like oil and water) are united with the help of a binder with a hydrophilic head and lipophilic tail called a(n) _________
emulsifier
Mixtures of fats and oils converted to fatty acids by heat and then purified fall under which of the following cosmetic classifications?
soaps
Functional ingredients used to remove oil and/or dirt and are also known as a cleansing agent are called:
surfactants
A biologically active ingredient that has a direct effect on the product and provides a beneficial effect is called a(n) _________.
Active Ingredient
This type of skincare product penetrates the fastest into the skin.
Serum
Mixtures of two or more kinds of molecules, having a tendency to separate when left standing, are known as:
suspensions
Joan has a client with sensitive skin, what type of mask would help calm, soothe, and balance her client’s skin?
gel mask
These water-soluble acids are derived from fruits or synthetically made and help remove the dead skin and also dissolves desmosomes (the glue that holds dead skin to the face).
Alpha Hydroxy Acids
Inactive substances that are combined with active ingredients to help deliver them to the skin are called _______.
vehicles
What volume of developer is needed for lash and brow tinting?
10 volume