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Dr Harman uses APF Pro to help horses cope with stress, especially when they have conditions such as Lyme disease that get worse easily with stress.

Protection and performance

APF Pro combines APF – the only natural herbal formula backed by university-level research – to deliver the most effective nutritional formula to support your horse’s health and performance.

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APF Pro is the most advanced natural herbal formula for use in equine athletes. APF Pro combines the proven nutritional technology of the original APF (Advanced Protection Formula) with support for both gastric health and muscle health.

APF Pro combines APF – the only natural herbal formula backed by university-level research- with protection for optimal muscle health and gastric health to deliver the most effective nutritional formula to support your horse’s performance.

APF PRO delivers

  • Improved formula provides powerful support for protein synthesis to help maintain skeletal muscle
  • Increases resistance to stress induced gastric upset
  • Protects the immune system from long-term or intense stress
  • Optimizes glucose uptake and utilization in muscle cells
  • Promotes higher levels of ATP and CP in muscle cells
  • Improves utilization of lipids (fats) for long-term energy production
  • Improves and protects mitochondrial efficiency
  • Delays the onset of fatigue during exercise
  • Improves recovery from physical exertion
  • Protects digestive function by providing sustained energy to the GI tract
  • Delivers powerful anti-oxidant activity to protect against free radical damage
  • Protects against the damaging effects of intense or chronic stress


Eleutherococcus senticosus, Rhodiola rosea, Schizandra chinensis, Aralia mandschurica, Rhaponticum carthamoides in a water-alcohol extract

APF Pro – Protection and Performance

APF Pro is the premium supplement for the equine athlete in our line of products. Developed to address the unique needs of the equine athlete, it is also valuable for the young, growing athlete or the retired equine senior.

The equine athlete experiences enormous stresses, from high level athletic training, long-distance transport, constantly changing environments – often with sharp changes in altitude or temperature – to name a few. The stresses are relentless and unavoidable.

With APF Pro you know you are providing him with unequaled stress protection, immune support, gastric support, improved energy conversion, muscle health, endurance, and more rapid recovery from exertion.

The APF line of products was developed by an equine veterinarian with over 30 years of experience because he understood that virtually everything that impacted a horse’s health or impaired his athletic ability had an underlying stress component. All three formulas are designed to provide a superior measure of nutritional protection to address the potential negative effects of stress. Recommended and used by the world’s leading veterinarians, trainers, equestrians, and devoted horse owners.


Adaptogens are naturally derived from plants and herbs and are used to combat stress in the body. They accomplish this by targeting the HPA (hypothalamic-pituitary-adrenal) axis which handles the release of stress-related hormones such as cortisol and epinephrine.

When an equine animal is stressed, the brain signals the HPA which in turn releases the aforementioned hormones into the bloodstream. This reaction to stress is perfectly natural and provides the horse with a quick anti-inflammatory response to the body to help with preparing for any “fight or flight” needs.

The problem however arises when the equine athlete is exposed to situations where there is a higher rate of external stressors on the body for a longer period of time. This leads to the horse being exposed to cortisol and epinephrine from the HPA for extended periods which can cause muscle loss, electrolyte imbalances, physical and mental fatigue as well as depression. During these types of occurrences, the immune system support functionality can also begin to break down which leads to additional exhaustion and weakness with the equine.

Adaptogens have been shown to reduce the negative side effects of prolonged responses to stress by helping to bring the body back into balance – or homeostasis – more quickly so that the equine athlete can feel and perform at its best. In addition, bringing the horse back into a state of equilibrium also allows the immune system to stay strong so that the body’s natural ability to fight off sickness stays at its peak levels.