BOSTON — Certain ultraviolet filters commonly found in sunscreens induce a calcium signal in human sperm, mimicking progesterone and affecting sperm function, according to study findings ...

Many ultraviolet (UV)-filtering chemicals commonly used in sunscreens interfere with the function of human sperm cells, and some mimic the effect of the female hormone progesterone, a new study finds.

A maximum of two years guarantee is given for the validity of certified limits of the secondary UV-VIS-filter. The Technical Service can perform the recalibration of this secondary UV-VIS-filter.