Trusted by Ranchers.
Formulated by a Nutritionist.

Why Choose Dr. Harman's?

• Targeted Liver Support: Formulated with time-tested botanicals and herbs known to support bile flow, reduce inflammation, and create an environment less hospitable to flukes and other parasites.
• All-Natural Ingredients: Gentle on the rumen and the animal. Ideal for use in rotation with conventional treatments or as part of an integrated parasite management plan.
• Improved Herd Performance: Healthier livers mean better nutrient absorption, stronger immunity, faster gains, and higher reproductive success.
• Easy to Administer: Convenient liquid tonic is drenched for targeted support during high-risk seasons (Fall, Winter and Spring in fluke-prone areas).
• Producer-Approved: Developed with real-world ranching insight from Gulf Coast cattlemen who understand the challenges of sustainable parasite control alongside NRCS conservation practices.

Key Benefits for Your Operation

• Helps combat the effects of Fasciola hepatica and related fluke burdens.
• Supports overall vitality during stress periods (weaning, transport, wet seasons).
• Complements pasture management, snail habitat reduction, and strategic deworming programs.
• No harsh withdrawal concerns when used as directed — perfect for flexible marketing windows.

Why Choose Dr. Harman's?

• Reproductive Botanical Support: Targeted herbs and adaptogens work to optimize hormonal balance, reduce uterine inflammation, and create the ideal environment for conception and early embryo retention.
• All-Natural Ingredients: Gentle nutraceutical formula with no harsh chemical residues. Ideal for use as part of an integrated reproductive management program.
• Improved Conception Rates: Support your cows through breeding season and the critical 30-day post-breeding window for stronger embryo retention and better calf crops.
• Easy to Administer: Convenient liquid tonic administered as an oral drench. Begin 30 days prior to breeding season for best results.
• Formulated by Dr. Harman: Developed by a PhD nutritionist with over 70 years in animal health and 41 patents in livestock nutrition.

Key Benefits for Your Operation

• Supports hormonal balance and luteal phase function during breeding season.
• Reduces uterine inflammation for improved embryo implantation.
• Complements your existing reproductive management and AI protocols.
• No withholding periods — safe for flexible marketing windows.

Why Choose Dr. Harman's?

• Receiving Day Support: Formulated specifically for the stress of transport, commingling, and new environments. Helps bridge the gap between arrival and full feed intake.
• Gut Health & Rumen Function: Botanical and probiotic-supporting ingredients promote healthy rumen establishment and reduce the risk of digestive upset during the receiving period.
• Immune System Boost: Key ingredients support the immune response during peak stress windows — when stocker cattle are most vulnerable to respiratory and digestive challenges. Contributes to effectiveness of vaccines.
• Improved ADG Potential: Cattle that transition faster eat sooner. Supporting early health sets the foundation for stronger average daily gain throughout the stocker phase.
• Formulated by Dr. Harman: Developed by a PhD nutritionist with over 70 years in animal health and 41 patents in livestock nutrition.

Key Benefits for Your Operation

• Supports gut microbiome establishment in newly received cattle.
• Reduces stress-related immune suppression during the receiving period.
• Complements your existing receiving and vaccination protocols.
• No withholding periods — safe for flexible marketing windows.

Why Choose Dr. Harman's?

• Stress Relief at Critical Moments: Targeted adaptogens and calming botanicals help reduce cortisol-driven stress during weaning, branding, transport, and processing — when calves are most vulnerable.
• Immune Support: Key ingredients bolster the immune response during high-stress windows, helping calves stay healthy and on track through the most challenging transitions.
• Gut Health & Appetite: Digestive botanicals support rumen development and encourage feed intake during the critical post-weaning period.
• All-Natural Formula: No harsh sedatives or chemical residues. A gentle nutraceutical approach to calf stress management with no withholding periods.
• Formulated by Dr. Harman: Developed by a PhD nutritionist with over 70 years in animal health and 41 patents in livestock nutrition.

Key Benefits for Your Operation

• Reduces stress-related immune suppression in weaned and transported calves.
• Supports healthy rumen development and early feed intake.
• Complements your existing calf health and vaccination protocols.
• No withholding periods — safe for flexible marketing windows.

Why Choose Dr. Harman's?

• All-Natural Fly Deterrent: Botanical essential oils proven to deter horn flies, face flies, gnats, screwworm larvae, and biting insects. Effective protection without synthetic pyrethroids or chemical residues.
• Gentle on Skin & Coat: Balm base conditions and soothes skin while repelling insects — ideal for sensitive areas around the face, ears, and wounds.
• Reduces Stress & Lost Production: Fly pressure costs producers in lost ADG, reduced milk production, and increased stress. Buzz-Off keeps cattle comfortable and focused on gaining.
• Easy Topical Application: Convenient 1L bottle applies directly to problem areas. No sprayers, no mixing, no mess. Works on contact and provides lasting protection.
• Formulated by Dr. Harman: Developed by a PhD nutritionist with over 70 years in animal health and 41 patents in livestock nutrition.

Key Benefits for Your Operation

• Deters horn flies, face flies, gnats, screwworm larvae, and biting insects on contact.
• Conditions and soothes skin — safe for use around eyes, ears, and wounds.
• No withholding periods — safe for all classes of cattle.
• Complements your existing fly management and integrated pest control program.