Lecture 2

Question 1

Lipohilic Zone in skin

Answer 1

stratum corneum & viable epidermis

Question 2

Hydrophilic zone in skin

Answer 2

dermis and vasculature

Question 3

Routes of skin penetration

Answer 3

transfollicular, direct transdermal, and via eccrine gland.

Question 4

Oil based cleansers/scrubs

Answer 4

W/O or O/W emulsions, with high mineral oil phase

Question 5

Water/surfatcant based cleansers/scrubs

Answer 5

mild detergent/surfactants or soaps with conditioning agents or polyquats, actives, and maybe abrasives.

Question 6

Masks

Answer 6

clay based suspensions or emulsions. peel off masks include polyvinyl alcohol, and can contain actives.

Question 7

Toners

Answer 7

Clear skin for application of moisturizers, treatments, and liquid makeup. Alcohol/water based or alcohol free with surfactants. With or without actives.