4 Pack Flea and Tick Collar for Cats, 32 Months Flea and Tick Treatment, Flea and Tick Prevention, Waterproof, Adjustable Flea and Tick Collar for Kittens, Blue & Orange

TldrI’m thrilled with the results so far!Have been dealing with treatment resistant fleas for nearly 2 years in Florida, where they never seem to die despite multiple treatments of house & indoor only cats on flea treatments 24/7/365.All 3 cats are scratching & grooming significantly less since application less than 36h ago & aren’t experiencing any adverse effects.Even if collars only last 3-4mo rather than 8mo advertised, I’ll buy again if these results continue & will update review in a month or 2.Full reviewI can’t speak to longevity/if the collars will last 8mo each as advertised yet, however I do live in Florida & since my HOA decided to stop treating the grounds for fleas, I have been dealing with a fleas that have resisted all treatment… so far in the house I’ve tried DE, the usual OTC, flea lamps, pro grade flea treatment (self application), & profession pest treatment with no luck, on top of the usual flea treatments for the cats (all indoor only). They cats have been on RX topical flea meds, OTC topicals and collars, including the gray one that costs $60 per collar, all with only mild to moderate success that would last a few weeks at best (if they worked at all). We’ve all been miserable, and I’ve been frustrated with the lack of results, esp considering the costs of Rx flea meds X3 plus pro pest treatments!The Vicsom collars arrived on Saturday night, and I applied them late Saturday night/early Sunday morning (around 2am… My sleep is awful). Their itching & grooming was reduced dramatically by Sunday morning, and has decreased even further in the last 24h (less than 36h total). My male cat is a compulsive over groomer, and his grooming has been reduced as well, so I’m pretty thrilled with the results so far.None of my cats have shown any adverse effects, they’ve just been happier, less itchy, scratchy cats.I’ll update the review in a month or two when we’ve had more time with the flea collars, but as of right now, I’ll happily buy these again, esp at the current price of 20.99/4pk, making them about $5.25 per collar, which is a fantastic value compared to the $30 topicals I’ve been buying each month or the $60 name brand collars, all with only moderate results at best!A couple of things…1.) The collars are incredibly long – I had to cut at least 7 inches off of each, and will trim more once they’ve settled into the collars. I do wish the manufacturer had included a loop for the 2-3″ excess they recommend leaving for adjustments (the gray collar has a loop… Very helpful!). I may try to diy one from plant Velcro, soft side out, of course.2.) the ingredients can’t be found anywhere on the listing or the box, which is wild. They should be front & center so consumers can make informed choices.Per the sheet found within the box, the active ingredients are:1.5% Deltamethrin2% Imidacloprid96.5% other ingredientsI’d still really like to know what the other ingredients are!I’d knock the product down a star for the 2 issues above, but I’m so grateful that my cats are no longer itchy that I’m letting it go for now.Again, I’ll update in a month or two, and possibly after that as well.I’ve included pics of packaging, the collars & one of all 3 cats sacked it in my lap after approx 8h in the Vicsom collars – they stayed like that with zero itching from any of them for hours!