I’ve used the Wondercide products that have Organic Cedar Oil and Hydrated Silica. I used it for a few weeks so can’t really say much about fleas but it certainly didn’t work for ticks. My dog is always in constant danger of getting ticks and at one point the work truck was infested with them (not from the dog from us! Grossssss). I used it on myself as well as the dog and I was still coming home with 21 ticks latched onto myself and at least that many, if not more, on the dog. We have since moved from that grassy area about the same time I put the K9 Advantix 2 back on him and am not sure if it was just that area or because we put the Advantix back on, but so far only a couple ticks. I hate to use a product like that on him but until I find one that works well for ticks I see it as my only option.
