About Doctor By HB Care
Doctor By HB Care makes lickable, gel-format pet supplements for dogs and cats, manufactured in Korea in FDA, ISO, and HACCP-certified facilities using what the brand describes as human-grade ingredients. Its product range spans hairball relief, respiratory support, probiotics, immune support, joint care, skin and coat, and organ-specific formulas such as kidney and liver support, all delivered in individually portioned sticks rather than loose powders or chews.
The brand's cat hairball formula uses what it calls a two-step system: chitosan, oat fiber, and psyllium husk to bind and gently move ingested fur, paired with licorice extract intended to soothe the stomach lining along the way. Each tube is a fixed 8.04 kilocalories, letting owners account for it precisely in a cat's daily treat allowance, and the chicken-flavored lickable format is built to appeal to cats that refuse pastes, gels, or powders mixed into food.
Brand website: doctorby.us
What Doctor By HB Care makes
Doctor By HB Care's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
Doctor By HB Care Hairball Treatment for Cats
lickable psyllium husk, chitosan, and oat fiber formula in individually portioned tubes -- the product in our featured review — featured on House of Mittens
Doctor By respiratory support formulas
lickable gel supplements aimed at feline respiratory health
Doctor By probiotic formulas
gel-format probiotic supplements for digestive support
Doctor By immune support formulas
lickable immune-support sticks for cats and dogs
Doctor By joint care formulas
gel-format joint supplements in the same single-serve stick format
Doctor By organ-support formulas
kidney- and liver-focused lickable supplements
Why we recognized Doctor By HB Care
The House of Mittens Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our vet-reviewed category guides. Doctor By HB Care earned it on the strength of the products below, evaluated the same way every product on this site is: assessed against feline-health criteria, used with real cats, and judged on merit.
Doctor By HB Care products we rated highly
Doctor By HB Care Hairball Treatment for Cats, Lickable Formula with Psyllium Husk and Fiber, Chicken Flavor (30 Count)
A psyllium husk and chitosan lickable puree delivered in individually portioned tubes, which removes the measuring and mess of a paste or powder. Owners report a drop in vomiting frequency and strong flavor acceptance despite the psyllium-and-chitosan base, and the formula comes out of an ISO- and HACCP-certified facility, a manufacturing signal most small hairball brands don't publish at all. The brand also gives an exact calorie figure, 8.04 kilocalories per tube, letting owners budget it precisely against a cat's daily treat allowance.
Read the 12 Best Cat Hairball Treats and Remedies of 2026, Vet-Reviewed guide →What earned Doctor By HB Care the recognition
- One of the products we rated highly in our cat hairball treats and remedies review, on the strength of its psyllium husk and chitosan formula and individually portioned dosing.
- Manufactured in Korea in FDA, ISO, and HACCP-certified facilities, a manufacturing signal most small hairball brands don't publish at all.
- Publishes an exact 8.04-kilocalorie count per tube, one of only a few hairball products in our review that gives owners a real number to budget treats against.
- Individually portioned lickable tubes remove the guesswork of dosing a paste or powder, and reviewers report strong flavor acceptance despite the psyllium-and-chitosan base.
- Extends the same lickable, gel-format approach across a broader supplement line covering respiratory, immune, joint, and organ-specific support for cats and dogs.