Chasteberry supplement for horses and dogs helps promote healthy pituitary function.



Promote healthy pituitary and hormonal function with chasteberry for horses and dogs.

Evitex is the #1 natural chasteberry supplement for horses (and dogs) formulated to promote pituitary and hormonal health.

Do you have a moody mare? Is your horse not shedding out properly or considered an ‘easy keeper’? Are you trying to maintain a healthy hair coat and muscle tone for your horse or dog? Healthy function of the horse’s pituitary gland is needed as it releases hormones to regulate various functions, including metabolism, ageing, growth, hair coat, behavior, reproduction and more.

Using chasteberry for horses in need of proper pituitary function has been widely researched in Germany.  According to Dr. Rudolf Fritz Weiss, chasteberry acts on the hypothalamus and pituitary gland.  The pituitary gland is considered the master gland of the endocrine system. It controls the adrenals and thyroid regulating activity of other organs and tissues in the body.

Evitex has gained an outstanding reputation as the natural way to maintain the health of horses’ hormonal systems. By supporting normal function of the pituitary gland, Evitex may help manage hormonal balance, cresty neck, metabolic function, kidney function, healthy digestion and maintain optimal function of reproductive processes.

Evitex may help with normal shedding, sweating and drinking, healthy muscle tone and top line and overall appearance. Ongoing research shows the many benefits of chasteberry for healthy pituitary function, balancing hormone levels and supporting glucose metabolism in horses and dogs. Evitex is very palatable and along with a healthy diet, will help promote long-term health.

Liquid based supplements are the most bio-available to horses yet some fall short as they use alcohol tinctures to extract the herbs.  Evitex is water based, with no fillers, no sugars and no alcohol which offers you the most natural delivery method for horse or dog.  Emerald Valley adheres to the NASC’s recommended manufacturing processes for all of our liquid herbal supplements and work only with NASC preferred suppliers.

Please read directions for use before placing your order.

  • pituitary health
  • Normal shedding
  • hormone levels
  • metabolic function
  • balance behavior

Additional information


1 Liter (Recommended for dogs and minis), 2 Liter, 1 Gallon

Chasteberries (vitex agnus-castus), 30 mg per ml



Two significant field trials with horses on our supplement showed support of healthy pituitary function. One field trial of 10 horses showed improved, rapid shedding, improved energy levels and better attitude. 2 horses showed drops in blood insulin levels. 8 of the horses carried a normal winter coat the following season.

Another trial of 25 horses consisted of 13 mares and 12 geldings ranging in age from 14 to 26. All owners reported improvement in attitude, more active and less depressed. 22 owners reported their horses shedding thick, heavy coats during the early part of the trial and next year’s coat was more normal in appearance. 20 animals showed a reduction in excessive drinking and sweating. 12 animals showed improvement of ACTH levels.


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