Synergy Labs releases Richard's Organics High-Calorie Nutrient Paste (shown) for dogs and cats and Richard's Organics Hairball Remedy for cats. The paste comes in separate formulas for cats, kittens, dogs and puppies. The all-natural product is formulated to stimulate an appetite while providing vitamins and antioxidants to dogs and cats that are stressed, debilitated, pregnant or otherwise off their normal diet, the company states. Hairball Remedy is an all-natural, nutrient-rich formula made with lecithin and beeswax, the company reports. The product lubricates swallowed hair, allowing it to pass gently and easily through the intestinal tract, according to the company. Tuna and chicken flavors are available.