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At Kan Herb, we believe wellness should be simple, natural, and rooted in tradition. That’s why every herbal formula we create is made with time-honored ingredients, thoughtful sourcing, and a deep respect for your pet’s health and daily balance. Whether you’re supporting your companion through aging, digestive discomfort, or occasional stress, our goal is to offer gentle, effective solutions that help pets feel their best. Each formula draws from classical Chinese herbal wisdom and is carefully adapted for today’s pets. From promoting energy and digestion to calming the mind or supporting healthy joints and kidneys, every blend is crafted with intention—blending herbs like astragalus, licorice, and ginseng in ways that align with the body’s natural rhythms. Our herbal liquid extracts are easy to use and absorb quickly, making them a convenient option for both dogs and cats. They’re free from artificial additives and unnecessary fillers—just concentrated plant-based support in every drop. Whether your pet needs a little extra strength, calm, or vitality, there’s a Kan Herb formula designed to meet them where they are. Proudly made in California and trusted by veterinarians, Kan Herb products bring the power of Traditional Chinese Herbalism into everyday pet care. Because your companions deserve more than just relief—they deserve balance, comfort, and wellness you can trust. Review: Impressive, measurable effect - Per my vet, I started giving .35mL daily to my aging bunny after a blood panel showed abnormal kidney values. Like magic, the next time he got blood work, his kidneys were healthy! I stopped giving it once the bottle ran out, then the same thing happened a few years later. Once again, as soon as I started giving this stuff (alongside a pharmaceutical but STILL), kidneys restored to normal values! He takes it from an oral syringe voluntarily but I could also easily mix into his rabbit nutrition supplement. He’ll be taking it for the remainder of his life now. Grateful for the homeopathic option! Review: bought this for my cat's elevated kidney values, seems to work great. - My cat is now a senior cat and, like everyone I suppose, has an increasing amount of health problems and risk. My vet said that her kidney values are elevated and although not quite 'chronic kidney disease', she has the potential to develop that over the next few years. The vet recommended this rehmannia eight as an alternative therapy to try. I have to say that my cat is usually very picky with what she eats and i was wary whether she would like this. Fortunately for me, my cat thinks this is dessert and as I sprinkle it on her food, she makes it a point to eat the kibble with the r-eight drops on it first. I've noticed that shortly after she started taking rehmannia eight (within a few weeks) her fur coat was a lot softer and she actually seemed to be younger (even more energetic than she usually is and happier seeming). Or maybe this is all in my head as a huge cat lover... Fast forward a year and my cat still loves this rehmannia eight on a twice daily basis (5 drops a meal). Her kidney values are still on the high side but she's managed to stave off chronic kidney disease for this long so I'll continue.















| ASIN | B00WVETM0M |
| Brand | Kan Herbs |
| Brand Name | Kan Herbs |
| Customer Reviews | 4.6 out of 5 stars 58 Reviews |
| Dog Breed Size | All |
| Item Form | Drops |
| Item Weight | 0.07 Kilograms |
| Manufacturer | Kan Herb |
| Manufacturer Part Number | VBPUKPPAZIN3517 |
| Model Number | VRE1 |
| Net Quantity | 29.5735 Milliliters |
| Number Of Items | 1 |
| Pet Type | Cat, Dog |
| Unit Count | 29.5735 Milliliters |
| country-of-origin | USA |
L**Y
Impressive, measurable effect
Per my vet, I started giving .35mL daily to my aging bunny after a blood panel showed abnormal kidney values. Like magic, the next time he got blood work, his kidneys were healthy! I stopped giving it once the bottle ran out, then the same thing happened a few years later. Once again, as soon as I started giving this stuff (alongside a pharmaceutical but STILL), kidneys restored to normal values! He takes it from an oral syringe voluntarily but I could also easily mix into his rabbit nutrition supplement. He’ll be taking it for the remainder of his life now. Grateful for the homeopathic option!
A**N
bought this for my cat's elevated kidney values, seems to work great.
My cat is now a senior cat and, like everyone I suppose, has an increasing amount of health problems and risk. My vet said that her kidney values are elevated and although not quite 'chronic kidney disease', she has the potential to develop that over the next few years. The vet recommended this rehmannia eight as an alternative therapy to try. I have to say that my cat is usually very picky with what she eats and i was wary whether she would like this. Fortunately for me, my cat thinks this is dessert and as I sprinkle it on her food, she makes it a point to eat the kibble with the r-eight drops on it first. I've noticed that shortly after she started taking rehmannia eight (within a few weeks) her fur coat was a lot softer and she actually seemed to be younger (even more energetic than she usually is and happier seeming). Or maybe this is all in my head as a huge cat lover... Fast forward a year and my cat still loves this rehmannia eight on a twice daily basis (5 drops a meal). Her kidney values are still on the high side but she's managed to stave off chronic kidney disease for this long so I'll continue.
C**.
No more teapills!
I like that I can give this to my cat in preference of teapills because she does not always eat them. High quality, and came on time.
M**A
Rehmannia Eight Combination
This is important to me to keep my cat, who has kidney issues, healthy and it has been amazing doing that. I used to get it through my vet but can't do that anymore. So happy to get it through Amazon.
P**H
prescribed by my vet
My cockatiel has gout and my vet was giving her Rehmania 8 as a lifetime kidney support. I have been giving her 3 units in the morning and 3 at night with a syringe. My first visit to the vet after 1 month checkup there has been no change in ulric acid level. However i believe this is not really a medicine but more of a supplement, so good for her in the long run. The allopurinol (prescription needed) is what has helped in keeping her ulric acid level down, I have been giving her 2 units in the morning and 2 at night.
Trustpilot
3 days ago
1 month ago