About This

• Sneezing, Runny Nose, Watery Eyes — Signs of Upper Respiratory Distress! An immune-supporting program for your cat’s nose and eyes with Doctor By Felysin.
• A cat’s Immune health matters! Frequent sneezing or watery eyes can return when stress or seasonal changes weaken your cat’s defenses. Doctor By Felysin helps maintain everyday immune balance and keeps your cat feeling clear, bright, and comfortable.
• Half the battle with any supplement is palatability. If they won't eat it, it won't matter how good a product is. just squeeze up and serve! A specialized formula designed for Immune & Respiratory Health, yet as easy and enjoyable as a treat.
• SUPPORTS RESPIRATORY & IMMUNE BOOST: L-Lysine helps maintain healthy respiratory function and balanced immunity for cats prone to sneezing or nasal discharge caused by seasonal or environmental stress.
• NATURAL IMMUNE SYNERGY: A blend of mushroom-derived beta-glucan and taurine works together to strengthen the body’s natural defenses and promote faster recovery, helping your cat stay clear, calm, and comfortable.
• Doctor By uses 100% human-grade raw materials, and conducts self-quality tests every three months. There is no gastrointestinal disorder or hepatotoxicity at all, so you can use this consistently every day and without resting period! It is a product manufactured meticulously by HACCP and ISO proven manufacturing facilities, so don't worry! We would like to hear your various opinions on the product. Feel free to contact us!