









🐾 Elevate your cat’s health naturally—because they deserve the best!
BestLife4Pets Cat Hyperthyroid & Gentle Weight Gain Support offers 400 odorless, easy-to-administer natural pills designed to balance feline thyroid hormones, stimulate appetite, and promote healthy weight and coat condition. Safe for all breeds and ages, this supplement provides a gentle, drug-free alternative to harsh medications, helping cats regain energy and calm behavior while fitting seamlessly into any care routine.






















| ASIN | B09HL85GTR |
| ASIN | B09HL85GTR |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #27,056 in Pet Supplies ( See Top 100 in Pet Supplies ) #64 in Cat Herbal Supplements |
| Brand Name | BestLife4Pets |
| Breed Recommendation | All Breed Sizes |
| Color | white |
| Customer Reviews | 3.8 3.8 out of 5 stars (630) |
| Date First Available | October 31, 2021 |
| Date First Available | October 31, 2021 |
| Included Components | bottle |
| Item Package Dimensions L x W x H | 4.17 x 1.42 x 1.34 inches |
| Item Weight | 0.18 Pounds |
| Item model number | 092021 |
| Item model number | 092021 |
| Manufacturer | BestLife4Pets |
| Manufacturer | BestLife4Pets |
| Model Name | THYC |
| Package Dimensions | 4.17 x 1.42 x 1.34 inches; 2.89 ounces |
| Size | 400 Count (Pack of 1) |
| Specific Uses for Product | Weight |
| Target Audience Keyword | house-cats |
| Warranty Description | Refunds within 60 days no questions asked |
J**B
Yes Yes Yes — Great Product!
Update 6/20/2023: About one week ago we had to give our cat some methimazole to stabilize as he was losing weight and seemed a bit jittery. He was giving off that “espresso shot look” again. …Now we are alternating the BestLife with the methimazole. Update 5/31/2023: Our cat is doing great! The main factor was to maintain weight and the hyper activity. We give him 3 pills inside of a pill picket by morning and 3 pills again at night. Sometimes we miss doses by accident, but he is doing well! Update 5/6/2023: Our cat is beginning to lose weight and seems more hyper so we upped his dose. His weight is usually around 14-16 lbs. we adjusted to three doses per day (2 pills each). 6 pills/day total. Update 4/26/2023: This product has surprisingly been great! We have skipped some evening doses and he acts the same. We have decided to dispense two tablets (based on weight) in the morning and one at night (instead of another two). He is maintaining his weight and everything is normal/ as usual! He no longer has loose stool after about 1.5 weeks. ————- My 14 year old orange tabby (14-16lbs) was diagnosed with hyperthyroidism two years ago after losing weight far too fast, constant hunger and looking like he drank 8 cups of espresso daily… needless to say, our vet did some bloodwork and he has been on methimazole ever since. More recently, I have carefully considered (after thoroughly reading about pharmaceutical drugs) that I highly prefer to go the natural route given the damaging side effects any Rx can potentially have on animals/humans. These little tablets are a God-send! They’re so easy to pop inside of a pill pocket. Thus far, he is on week two and he takes two of these tiny tablets in the morning and another two in the evening. So far, so good! No issues with them going in the pill pockets, either. He is calm, sleeps normally, and eats normally. It was a quick transition from the methimazole. The only negative is a loose stool. I am hopeful it will regulate soon, but only time will tell. I also read someone gives their cat three doses per day. *keeping that in mind for later down the road* Two doses of two tablets per day works great for now. Each bottle is 450 tabs. We are very thankful for this natural product!!
A**H
Seems to be working well for weight gain/appetite
I pair this with my cats thyroid meds. Twice a day! He’s looking healthy and back to his old self with weight gained. Idk if it’s solely his thyroid meds helping or with this medicine paired with it for results. I have had no issues with it! I do recommend paired with thyroid meds.
L**A
Was skeptical, but happily surprised
I read a lot of reviews about their cats dying after this medication (which I wondered if the cat was too far in for treatment before taking this medication), reviews that the product was homeopathic and wouldn't work due to no placebo effect with animals and some reviews from people who were recommended this by their vet for pets with sensitivities. I didn't want to take my cat to the vet as she's already anxious and easily stressed and she hates the vet office to the point of shaking when she's there. She's 12 years old and I recognized the beginning of hyperthyroidism. She's always been a small cat, never above 6 pounds, so the weight loss was hard to tell on her. Her back fur kept balding from overgrooming and her nose fur started to go which really got me paying attention. I noticed she was peeing more often and drinking a ton of water, her sister had this issue and she ended up dying not long after I realized the issue so I started looking into treatment at home besides home cooked meals. I started this cautiously, 1 pill for about 7 days just to see how she reacted to it. She was fine, no real issues. I finally started the 2 pill recommended dosage after establishing she wasn't going to have a reaction to the medication and within about 2 weeks I noticed changes already. She stopped scream meowing constantly, she was less aggressive about food and she toned down on the water. I have started giving her 2 pills at the same time every day so I don't forget and she's doing well with that for the last 1.5 weeks. It's been probably near a month and her hair on her back is growing back, the nose is unchanged, but her weight is back to normal and she's back to playing with my other cat rather than lashing out at her randomly. You get a lot of medication in a glass bottle so that's an amazing sign of quality and the results have sold me. This won't cure her, but it will help her stay herself until it's eventually her time to go and I'm grateful for the time this medication is giving us.
L**N
This product definitely improved my old cat's health and appearance.
January 2026 update: My 17 year old cat was hit and killed earlier this month, but I wanted to do an update on this product. She took "Hyperthyroid & Gentle Weight Gain Support for Cats and Kittens" for 1 1/2 years and did very well on it, i.e. her condition improved. She continued to lose a little weight, but very gradually. She weighed 7 pounds a few weeks ago, her fur was in great shape (not shedding), she had plenty of energy and a decent appetite and seemed generally happy and healthy. If not for the accident, we anticipated another couple years of good life for her. ----------------------------------- (Aug 2024) I plan to update in a month or two. I have an outside yellow tabby who is almost 16. She has always shed a lot and has been losing weight gradually for 2-3 years (weighed 10 lbs at age 4 and weighs 8 now), but no obvious health problems, per her annual vet visit. Switching to mid-grade Purina dry food several years ago helped her coat (and all the other cats) but the hair loss got worse again this summer along with almost daily hair balls (tubes!). I have been giving her 2 tablets of this product per day for a month, and she has had no ill effects. She may or may not have gained weight (my scale only does 1/2 pound increments) but her back feels less bony and she is no longer shedding or having hair balls. I will update in 4 to 8 weeks.
M**N
Gideon is a large breed cat (Maine coon). In his prime he weighed 27 lbs. Now he’s nearly 15 and not nearly as big. A couple years ago he developed hyperthyroidism and was losing weight rapidly. He was medically managed with meds and multiple blood tests that can get pricey. Besides he hated the medication. One month ago we switched him to this product. He accepts them and has gained all his weight back. If you’re looking for a natural alternative this is a good choice.
J**P
Seems to be working.My cat is 16 years old and has been on this for three weeks now and her appetite is alot better .
R**E
Great product. My cat been losing weight rapidly but now eating normally again thanks to this pill. Plus stopped vomiting. Great value as well! 400 pills! Who ever made this deserves a big hug. Thank you!
D**S
This is not medicine! Just some natural garbage.
S**D
Gave it to my 11 year old cat. To me it doesn't work. Pills are way to small and she didn't gain weight.
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