California Barber Written ExamSkin Care ServicesEasy
A barber is preparing to perform a facial on a client with dehydrated skin. Which of the following ingredients would be most beneficial to include in the products used during the facial to improve the skin's moisture content?
- ASalicylic Acid
- BWitch Hazel
- CHyaluronic Acid
- DKaolin Clay
Show answer & explanationAnswer & explanation
Correct answer: C. Hyaluronic Acid
Hyaluronic acid is a powerful humectant that attracts and holds up to 1,000 times its weight in water, making it ideal for hydrating dehydrated skin.
Why the other options are wrong
- A. Salicylic acid is a beta-hydroxy acid primarily used for exfoliation and acne treatment, not hydration.
- B. Witch hazel is an astringent and anti-inflammatory ingredient, not primarily for hydration.
- D. Kaolin clay is an absorbent ingredient used to draw out impurities and oil, not to hydrate.
Humectants
Ingredients that attract and bind water from the atmosphere or deeper layers of the skin to the skin's surface, improving hydration.
- Common examples include hyaluronic acid, glycerin, urea, and sodium PCA.
- Beneficial for all skin types, especially dry or dehydrated skin.
- Work by creating a moisture-rich environment on the skin.
Memory trick: Hydration heroes HA, humectants hold H2O.