What does the Frontline do to their eggs? I sell my eggs and can't risk a problem. Does it pass through to the egg? Is there a withdrawal time for it?
		
		
	 
Let me see if I can find the link there was a thread on BYC about it, the answer is, it "probably" gets in eggs but not in any  noticeable amounts( they get  detailed about if things stored in fat get into the egg or not too) , but it has not been studied as its an off  label use. I was looking for tylan for the same thing and also could not find anything since its an off label use there too.
The more technical stuff starts on page 4. There is a guy who did a study  who chats on that thread you could PM.
Eggs hatch fine however.
Jim started the June egg swap, but its moved to the new section so harder to find.  Look in swaps if you are interested, its fun!