Effect of Sunscreen Application Under Maximal Use Conditions on Plasma Concentration of Sunscreen Active Ingredients: A Randomized Clinical Trial.
JAMA. 2019 Jun 4;321(21):2082-2091. doi: 10.1001/jama.2019.5586.
JAMA. 2019.
PMID: 31058986
Free PMC article.
Clinical Trial.
Two milligrams of sunscreen per 1 cm2 was applied to 75% of body surface area 4 times per day for 4 days, and 30 blood samples were collected over 7 days from each participant. ...RESULTS: Among 24 participants randomized (mean age, 35.5 [SD, 1.5] years; 12 (50%] wo …
Two milligrams of sunscreen per 1 cm2 was applied to 75% of body surface area 4 times per day for 4 days, and 30 blood samples …