sunscreens

Question 1

what are the two categories of sunscreens?

Answer 1

chemical and physical

Question 2

what range is UVB sunlight?

Answer 2

290-320nm

Question 3

what range is UVA2?

Answer 3

320-340nm

Question 4

what range is UVA1?

Answer 4

340-400nm

Question 5

which three organic UV filters absorbd in the UV-B radiation?

Answer 5

Cinoxate, Para-aminobenzoic acid(PABA), and Trolamine absorb UV-B radiation

Question 6

Which FDA approved organic sunscreen alos protects against UV-A1 light?

Answer 6

avobenzone

Question 7

which organic sunscreens also act in the UVA2 range(320-340 nm)

Answer 7

dioxybenzone or oxybenzone

Question 8

What does the FDA say about broad spectrum labeling?

Answer 8

FDA says that products that are broad specturm SPF>15 can now include the following statement in drug facts: if used as directed with other sun protection measures, decreases the risk of skin cancer and early skin aging caused by the sun”

Question 9

FDA saying of sunscreens that are not broad spectrum or less than SPF 15?

Answer 9

these products can only claim protection from sunburn with statement: this product has been shown only to prevent sunburn, not skin cancer or early aging

Question 10

FDA labeling on water resistance?

Answer 10

FDA bans term sunblock, waterprooof, or sweat proof b/c claims cannot be sustanined.

Question 11

how must companies now label water resistance?

Answer 11

water resistant (40minutes) or water resistant (80 minutes)

Question 12

FDA on labeling of sunscreens of SPF >100

Answer 12

insufficient evidence of clinical benefit for such SPFs, sunscreen product labels may claim maximum SPF value of 50+