UVB are the burning rays of the sun and UVA are the tanning rays that damage structures in the dermis.(T/F)
True
Clients with darker skins are more likely to be slow to respond to treatments for hyperpigmentation.(T/F)
True
Exfoliating treatments are the key treatment for hyperpigmentation because getting rid of stained surface cells and cell buildup fades existing hyperpigmentation and makes melanin suppressive products absorb better.(T/F)
True
Which combination of ingredients both work to combat hyperpigmentation by inhibiting tyrosinase activity
Licorice root extract and Arbutin
An advantage of a chemical sunscreen is that they cannot be seen on the skin; however, two disadvantages include that they are more likely to irritate the skin and that they produce heat while absorbing UV rays.(T/F)
True
While Hydoxy acids speed the process of treating Hyperpigmentation, the Hydroxy acids do not treat or inhibit the pigmentation process; they simply remove keratinocytes that already contain melanin and makes the melanin suppressive products absorb better.(T/F)
True
Which of the following procedures should be reserved for non-responsive stubborn cases of hyperpigmentation?
Jessner's exfoliations
Non FDA approved lightening agents are called brighteners and include kojic acid, bearberry extract, asafetida extract, forms of Vitamin C, and licorice extract among others.(T/F)
True
In Europe, sunscreens are considered cosmetics and will have a DIN on the label near the list of all active ingredients.(T/F)
False
Melanocytes need the amino acid tyrosine in order to make melanin.(T/F)
True
One advantage to using hydroquinone is that it reduces the chances of allergic and irritant reactions in many people.(T/F)
False
Cosmetic brightening agents including kojic acid, azelaic acid, magnesium ascorbyl phosphate, asafetida extract, mulberry extract, bearberry extract, arbutin, and licorice extract work similarly to hydroquinone in their actions on the melanin process; however they cannot make the claim of “lightening” pigmentation from the skin.(T/F)