These two small-pet newcomers had our backend flooded with questions for months. One is a hairball paste, one is a grass cake—one handles "can the fur move," the other "can a daily reward have some nutrition."
First, the hairball paste. Rabbits cannot vomit, so ingested fur can only leave via the gut—hairball management is a must for small pets. Our version takes the route "fiber pushes it out, not oil lubricates": uses 11 plant fibers (oat hay, alfalfa, barley grass, dandelion, etc.) to help the gut move fur out with the digesta, paired with probiotics for the gut environment, no mineral oil, no vegetable oil, plus 7 free-from additives. It pushes fur out—it does not "dissolve" it inside the body. Stating that clearly up front.
Then the grass cake. Many small-pet snacks are empty calories; we wanted a "nutritious reward": one cake ≈ 88% hay (75% US Timothy + 8% Australian oat grass + 5% alfalfa), blended with 18 nutrients, slow-baked at 65°C for over 12 hours for better nutrition retention, and it also helps grind teeth.
The hairball paste suits rabbits / chinchillas / hamsters / guinea pigs 3 months and older; how much depends on weight and molting—see product details. The grass cake suits 2 months and older; dose by weight (under 0.5kg half a cake, larger types 4–5 cakes), with ample dried hay. See Small-Pet Low-Temp Baked Nutrition Grass Cake. For selection and ingredients, check Buying Guide and Ingredient Encyclopedia.
One note: new products are nutritional supplements, not medicine. If a rabbit shows refusal to eat, bloating, or stopped defecation, don't wait—go to the vet.