Effect of sunscreen application under maximal use conditions on plasma concentration of sunscreen active ingredients: a randomized clinical trial

MK Matta, R Zusterzeel, NR Pilli, V Patel, DA Volpe… - Jama, 2019 - jamanetwork.com
… , application of 4 commercially available sunscreens under maximal use conditions resulted
in … waiving some nonclinical toxicology studies for sunscreens. The systemic absorption of …

Application of sunscreen− theory and reality

B Petersen, HC Wulf - Photodermatology, photoimmunology & …, 2014 - Wiley Online Library
… are tested using a thickness of 2 mg/cm 2 , but investigations show that sunscreen under
natural conditions is applied insufficiently with amounts about 0.39 to 1.0 mg/cm 2 , which …

Application of sunscreen preparations: a need to change the regulations

A Reich, M Harupa, M Bury, J Chrzaszcz… - Photodermatology …, 2009 - Wiley Online Library
… cannot easily increase the usage of sunscreen to the recommended amount of 20 g/m 2 ,
we would like to underline that education about the proper sunscreen use still remains an …

Factors that influence sunscreen application thickness and potential preservative exposure

R Novick, G Anderson, E Miller… - Photodermatology …, 2015 - Wiley Online Library
… information regarding the application of spray and stick sunscreens. The … of sunscreen
applied to skin by different application methods, to examine the relationship between application

Sunscreen application, safety, and sun protection: the evidence

H Li, S Colantonio, A Dawson, X Lin… - Journal of cutaneous …, 2019 - journals.sagepub.com
… A study has shown that expiry dates relate to the conditions of sunscreen usage, storage, …
double sunscreen application optimizes sunscreen use compared with a single application as …

Sunscreen use optimized by two consecutive applications

IM Heerfordt, LR Torsnes, PA Philipsen, HC Wulf - PLoS One, 2018 - journals.plos.org
Sunscreen users … sunscreen applications increased the quantity of sunscreen applied and
decreased the skin area left without sunscreen (missed area) compared to a single application

Sunscreen use: controversies, challenges and regulatory aspects

M Lodén, H Beitner, H Gonzalez… - British Journal of …, 2011 - academic.oup.com
apply sunscreens during the summer in Australia end up with the same vitamin D level as
a control group without sunscreen use, suggesting that sunscreen use … relaxed conditions. …

Reapplication Improves the Amount of Sunscreen, not its Regularity, Under Real Life Conditions

D De Villa, AR da Silva Nagatomi… - Photochemistry and …, 2011 - Wiley Online Library
… of spreading these sunscreens, the time required for application and their cost. Although
sunscreen application and usage could be improved via education, it seems unlikely that an …

Photoprotection by sunscreen depends on time spent on application

IM Heerfordt, LR Torsnes… - Photodermatology …, 2018 - Wiley Online Library
… on sunscreen application is related to the amount of sunscreen applied during a first and a
second application. If … should include advice to use plenty of time on sunscreen application. …

Effect of sunscreen application under maximal‐use conditions on plasma concentration of sunscreen active ingredients: a critical appraisal

M Charalambides, N Kibbi… - British Journal of …, 2020 - academic.oup.com
sunscreen application regimen adopted does not represent typical use; under study conditions,
an average adult male participant would require about 2·5 × 200‐g bottles of sunscreen