The manufacturer states 8 months of flea and tick protection from a sustained-release collar. It is odourless and non-greasy in use.
8 months protection
Odorless and non-greasy
Water resistant
Sold through veterinary channels
Expensive upfront cost
Rare allergic reactions
Counterfeits on market
Effectiveness: 9/10 · Safety: 8/10 · Value for Money: 8/10 · Convenience: 10/10
These are our own scores for the things that can be judged from the specification, the materials and how the product is built. They are not Amazon's customer rating.
A monthly spot-on delivers a dose that peaks and then declines over the month. A sustained-release collar is designed to release small amounts of its actives continuously over a much longer period, spreading through the skin's oil layer.
The practical appeal is obvious: one application instead of eight, no greasy patch, and no monthly reminder to forget. For households that routinely miss a monthly treatment — which is most households — consistent low-level protection can be worth more than a stronger product applied unreliably.
The manufacturer states up to eight months of protection. Treat that as a maximum under favourable conditions rather than a guarantee. Frequent swimming, frequent bathing with degreasing shampoos, and heavy parasite pressure all shorten effective duration.
Getting the fit right matters both for efficacy and for safety.
Two fingers between collar and neck. Too loose and the actives do not transfer properly to the skin's oil layer, which is the whole delivery mechanism. Too tight causes pressure and irritation.
Cut off the excess after fitting. A long dangling tail is something a dog can chew, and something another animal in the house can chew.
Check the skin under the collar weekly, particularly in the first weeks. Localised irritation at the contact area is the most commonly reported adverse effect of any collar product, and it is easier to deal with early.
Remove it before bathing or swimming if the packaging directs it.
Flea collars of this type have attracted public attention and adverse-event reports, and it would be dishonest to skip that.
The regulatory position as it stands: the products remain registered and available, and regulators have reviewed reported incidents. Reported adverse events are dominated by localised skin reactions at the collar site. Reporting systems collect reports without establishing that the product caused the event, so a report count is not a measure of risk — but it is also not nothing.
What that means for an owner:
This is a pesticide product worn continuously. Handle it as one: wash your hands after fitting, and do not let children handle or sleep against a treated animal's collar.
Watch for local skin reactions and remove the collar if they appear.
Talk to your vet if your animal is very young, elderly, unwell, pregnant, nursing, or on medication.
Species-specific products only. Never fit a dog collar to a cat.
Watch for chewing. Dogs that chew each other's collars can ingest the product, which is a different exposure route entirely. If you have a pair that mouth each other's necks, a collar may not be the right format.
Treat every animal in the house, each with a product appropriate to its species. Treating one animal in a multi-pet home is the commonest reason a flea problem never ends.
This applies to every flea product ever sold.
Only a small share of a household flea population is on the animal. The rest — eggs, larvae, and armoured pupae — is in carpet, bedding and floorboards, and nothing worn by the animal reaches pupae. Pupae hatch on their own schedule over weeks.
So fleas after starting a treatment are expected. What matters is the number falling. Clearing a real infestation takes about three months, and the free additions matter:
Vacuum thoroughly and often, especially sleeping areas and along skirting boards. Vibration triggers pupae to hatch, bringing them out where the treatment can reach them. Empty the vacuum outside.
Wash all bedding hot, the animal's and any human bedding it uses.
If you live where tick-borne disease is a real risk, discuss coverage for your local tick species with your vet. Removal technique matters too: use a proper tick hook or fine-tipped tweezers, grip as close to the skin as possible and pull steadily. Never burn, smother or twist a tick.
The manufacturer states up to eight months, and that is a maximum under favourable conditions rather than a guarantee. Frequent swimming, frequent bathing with degreasing shampoos and heavy parasite pressure all shorten the effective duration.
Two fingers between collar and neck. Too loose and the actives do not transfer into the skin's oil layer, which is the delivery mechanism; too tight causes pressure and irritation. Cut off the excess tail so it cannot be chewed, and check the skin underneath weekly at first.
They are registered products in continuous use, and reported adverse events are dominated by localised skin reactions at the collar site. Reporting systems record reports without establishing cause, so counts are not a measure of risk — but this is a pesticide worn continuously. Wash hands after fitting, keep children from handling it, watch the skin, and discuss it with your vet for young, elderly, unwell, pregnant or medicated animals.
Because most of an infestation is not on the animal. Eggs, larvae and armoured pupae live in carpet and bedding, and nothing worn by the animal reaches pupae. Expect about three months of consistent treatment plus thorough vacuuming and hot-washed bedding, and treat every pet in the house.
No. Never fit a dog parasite product to a cat — species formulations and doses differ and it can be dangerous. Buy the cat-specific version, and if you have animals that chew each other's collars, a collar may be the wrong format entirely.