Anatomy
The outermost layer of the skin primarily composed of keratinized cells.
What is the epidermis?
The process by which skin cells are shed from the stratum corneum.
What is desquamation?
This method removes hair from the surface of the skin only.
what is depilation?
A substance that has a pH below 7.
What is an acid?
An ingredient category that helps attract moisture to the skin.
What are humectants?
This skin layer contains blood vessels, nerves, and connective tissue.
What is the dermis?
This function of the skin helps regulate body temperature.
What is thermoregulation?
The active ingredient in depilatories that breaks down keratin.
What is thioglycolic acid?
DAILY DOUBLE
This term describes a substance that dissolves another substance.
What is a solvent?
This ingredient helps prevent product spoilage by inhibiting bacteria growth.
What is a preservative?
DAILY DOUBLE
The arrector pili muscle is attached to this structure in the skin.
What is the hair follicle?
The skin’s ability to sense heat, cold, pain, and pressure.
What is sensation?
This waxing technique removes hair against the direction of growth.
What is soft wax removal?
The pH range considered safe and healthy for the skin.
What is 4.5–5.5?
DAILY DOUBLE
This ingredient type is often derived from petroleum and helps soften and smooth the skin by filling in surface gaps.
What is an emollient?
This gland is responsible for secreting an oily substance that lubricates the skin and hair.
What is the sebaceous gland?
DAILY DOUBLE
This physiological process increases blood flow to the skin, causing redness.
What is vasodilation?
A contraindication for waxing involving fragile or easily torn skin.
What is thin or sensitized skin?
This reaction occurs when an acid and a base are combined.
What is neutralization?
A naturally occurring ingredient in the skin that decreases with age and is known for holding up to 1,000 times its weight in water.
What is hyaluronic acid?
This layer of the epidermis is present only in thick skin such as the palms and soles.
What is the stratum lucidum?
This skin function allows limited substances like oxygen and topical ingredients to enter.
What is absorption?
This hair growth stage is ideal for permanent hair removal treatments.
What is the anagen phase?
These substances help blend oil and water together in a product.
What are emulsifiers?
This category of ingredients is designed to neutralize free radicals and protect the skin from environmental damage.
What are antioxidants?