Greycoat Calm
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Calm support for heart & kidney
When the heart and kidneys become more sensitive, a calmer approach to care matters.
Repeated tension can contribute to blood pressure instability and increased metabolic waste, adding extra burden to heart and kidney care. In sensitive stages, calm becomes a core part of the care routine.
Calm is not a sedative. It does not suppress normal behavior. It is designed to help limit additional heart and kidney burden by supporting relaxation as part of ongoing care.
Who should consider calm care
- Becomes highly tense during veterinary visits
- Shows significant stress after subcutaneous fluid administration
- Shows increased sensitivity during heart or kidney care
How to Use
- Standard use
- 1 capsule per day
- Situational
- Vet visits / subcutaneous fluid care / before the guardian goes to sleep
- If needed
- Up to 2 capsules per day
- · Daily intake may be adjusted based on your cat's weight and condition.
- · A Greycoat Research consultation can help guide a more personalized approach.
- · Capsules may be opened if needed, but whole-capsule administration is recommended due to bitterness.
- · Use a pill giver or a small amount of liquid treat to make administration easier.
- · Offer a small reward treat after dosing.
Product Specifications
- Product Name
- Greycoat Calm
- Contents
- 60 capsules
- Form
- Capsule
- Feeding duration
- 1 capsule per day regardless of weight: 1 bottle lasts approx. 2 months
- Ingredients
- Taurine, GABA, Milk Thistle, L-Theanine, Berberine, Blueberry, Ascorbic Acid, Strawberry, Tomato Extract, Chamomile, Quercetin, Resveratrol, Pyridoxine, Microcrystalline Cellulose
- Made in
- South Korea
- Storage
- Store in a cool, dry place away from direct sunlight
- Price
- $54.99
Key design principles for calm care
Emotional tension buffering
Designed to help buffer psychological tension arising from daily stimuli and repeated care processes.
Blood pressure stability support
Designed with consideration for blood pressure strain that may accompany repeated care routines.
Heart & kidney cellular stability
Designed to support cellular balance in the heart and kidneys under ongoing tension and care-related burden.
When calm can be helpful
If your cat is likely to become tense, give 1 capsule to support calm heart and kidney care.
- · About 1 hour before a vet visit
- · About 1 hour before subcutaneous fluids
- · Before sleep, after a long day of care
Up to 2 capsules per day, if needed.
Ingredient Information
GABA
Helps buffer excitatory responses during heightened tension.
L-Theanine
Supports relaxation under daily stimuli and care-related stress.
Quercetin
Included with consideration for blood pressure burden and cellular stability under repeated tension.
Indian Barberry Fruit Extract (Berberine-standardized)
Formulated to support cellular energy balance during ongoing stress.
Other ingredients: Taurine, GABA, Milk Thistle, L-Theanine, Quercetin, Indian Barberry Fruit Extract, Blueberry Extract, Vitamin C, Strawberry Extract, Tomato Extract, Chamomile Extract, Resveratrol, Vitamin B6
Compatibility at a glance
If your cat uses Calm…
Foundation60-Day Satisfaction Guarantee
If you're not satisfied after 60 days of use, we'll offer a full refund.
Each formula was developed with a scientifically designed nutritional approach. Still, feline kidney care is a journey — and we're here with you every step of the way.
Fast, Reliable Global Shipping
All orders are carefully packed and shipped on weekdays. We deliver through the official Post Office network (EMS & K-Packet) for trusted, reliable delivery.
Estimated delivery times
- U.S.About 5 business days
- Other countriesAbout 7–10 business days
Warnings
Allergy warning
If your cat weighs under 2.5 kg: please consult before administering.
If your cat is taking other medications or supplements: please consult before administering.
Veterinary guidance
This is a nutritional supplement and is not intended to diagnose, treat, cure, or prevent any disease. Consult your veterinarian before use if your cat is pregnant, nursing, on prescription medication, or has a pre-existing condition.
Storage
Store in a cool, dry place, away from direct sunlight.
About Greycoat Research
Greycoat Research focuses on long-term kidney care for cats.
Our formulas are informed by:
- 3,500+ one-on-one kidney nutrition consultations
- Feeding data from 10,000+ cats in kidney care
Each formula is developed using carefully selected ingredients and reviewed through a structured, multidisciplinary process.