And country of comfortable currently offered training and inc less sized dog, from small puppies up to adults of the larger breeds. The way the collar works is simple: it's been soaked a solution of the above essential oils which is designed to provide flea and insect protection for about 5 months. This is a little bit shorter than some other collars, but that can be the trade-off with natural solutions versus the more harsh chemicals that are designed to last longer. And yes, this collar doesn't lose any of its effectiveness if it gets wet, you 't have to worry about taking it off if your dog loves to play water. Pros Cons This completely natural collar not only does away with insecticides and other chemicals, it does not use any substances at all. Unlike most dog flea control products, a baltic collar can be used on cats too. That's because traditional flea formulas often contain the chemical permethrin which is highly toxic to cats. Because Baltic collars contain no chemicals or substances, this is not issue that you'll need to worry about with this collar. While collars are often used to provide overall protection for dogs and cats, people also use them as a way to help repel fleas. The physical effect of the gems just repel the fleas and ticks, they can't get a hold on your dog's fur. people also note how mosquitos and other pests are also repelled when a dog is wearing this collar. it goes just beyond being another anti-flea product. It also provides peace of mind if you have cats that come into contact with your dog while he's wearing a flea collar you simply won't have to worry about toxicity. How it works: Well this is a highly unique method that involves using static electricity generated from the beads around the collar when they are contact with the dog's fur. This is then meant to make it very uncomfortable and difficult for fleas, ticks or other insects to grip on to the fur and thus, they fall off. This is of course harmless and unnoticeable by the dog as this small amount of static electricity is extremely weak against anything larger than, well, a flea. If there's a downside to this collar, it's that it not be effective on a dog that has existing heavy infestation of fleas. The ideal option that case would be to use a once off spot-on treatment or a thorough wash with effective shampoo to kill off the existing fleas, and then the collar can be used from then on to prevent any more fleas making their home on your dog. Final word: A fantastic collar for year long flea and tick control. Excellent choice for households that also have cats no risks to felines unlike most chemical-based dog flea products. The only negative is the fact that the collar, due to its gentle nature, won't rid your dog of a heavy infestation of fleas initially, use this collar after a one-off flea removal process if required. The Plus range of Ultraguard collars has a flea and tick prevention period of about 7 months. Ultraguard makes use of chemical insecticides to kill fleas on a dog, just like the ingredients that are used their spot-on treatments. Unfortunately, quite a number of people have reported their dog having some concerning side effects when using this collar, ranging from irritation, to heavy panting and lethargy. Additionally, the collar has not proven to be as effective as other brands with our research finding that fleas were still being found on some dogs even after several weeks of wearing the collar some cases. While the Hartz Ultraguard flea collar has received a positive result for dog owners, the number of people who continue to be disappointed the results or worse, having their dog experience negative side effects, means that we would encourage you to look at other flea and tick collars instead. Final word: Has potential to work well, but too reports of ineffective results and side effects; better options are available. The Adams flea and tick collar is a low cost option which provides good protection against all forms of fleas and ticks. This collar from Adams protects against both fleas and ticks for up to 7 months, which is about the standard period of time when comparing the different tick and flea collar products. Most people prefer to swap the collar twice each year, just to make sure that it's working at its maximum level all year round, but particularly the warmer months when fleas are at their most prolific or if you have a dog that spends a lot of