OR WAIT 15 SECS
© 2020 MJH Life Sciences and Spectroscopy Online. All rights reserved.
© 2020 MJH Life Sciences™ and Spectroscopy Online. All rights reserved.
May 15, 2015
Sun Protection Factor (SPF) allows consumers to compare protection provided by sunscreens. Standardized methods properly evaluate the level of protection from UVA / UVB, and confirm label claims of their effectiveness.