With the sunny days of August come developments in two cases at opposite ends of the tanning front. One involves sunscreens, and the other, tanning beds.

First, the lowdown on the lotion: Schering-Plough, the maker of Coppertone Sport, filed a false advertising suit against Neutrogena in April in Delaware federal district court. Schering-Plough asked for a preliminary injunction to block Neutrogena’s claims that its new Ultimate Sport line of sunscreens was “the best line of sport sun protection” and that it provided better protection against the sun’s harmful UVA and UVB rays than other sport lines.