Difficult mares? Oestress
Wednesday 29 May 2024During heat, mares show difficult behaviors; signs of tiredness, hypersensitivity when touched, they bite everything they come across or simply show discomfort when being confined. On the contrary, they are characterized by being determined, quick-thinking and brave – which makes them an incredible companion. If you are lucky enough to have a mare, it is time to work with her, respecting her concerns to achieve good performance and well-being.

OESTRESS helps to naturally balance the mare's heat cycle, treating the major causes of discomfort and bad mood using herbal extract ingredients and thus maintaining hormonal balance. Additionally, OESTRESS contains bioavailable magnesium to relax muscle tension and achieve calmness, and natural antioxidants to naturally support a healthy system.
It is advisable to administer OESTRESS daily during the mating season and if necessary, it can be administered throughout the year.
FIVE important things to remember about mares:
- Mares are cycle-sensitive animals, just as stallions can have hormonal challenges.
- Hormonal behavior generally follows a pattern and appears most intensely between March and October – known as estrus or breeding season.
- The severity of mood swings is specific to each mare. Not all mares have regular cycles, some can be unpredictable, others show no signs of heat, and others seem to be constantly hormonal.
- Considering the reproductive anatomy of mares, the ovaries are located just below or behind the back of the saddle, so it is not surprising that mares are sometimes sensitive to riding. In addition, at certain times they may feel less willing to work or with less affinity.
- Research shows us that the body condition of mares can influence the length of the breeding season and also their dominant behavior, so a healthy weight is recommended.
- Oestress Five Stars offers hormonal support for the entire season:
- Regulates hormones naturally.
- Relieves muscle tension.
- Helps calm mares and their well-being.
- Relieves the effects of hormonal changes and physical discomfort.
“Oestress is fabulous! I feed it every year during the spring/summer period and it really does make a huge difference to Shania. She is so much more focused and manageable to ride.”


Michelle & Penny
“Penny is a seven year old mare who lives in a small herd of geldings and I find her behaviour during her seasons to be most undesirable. I was recommended NAF Five Star Oestress and after only a few weeks I noticed a big difference. I have been using it for over a year now and Penny is much happier, calmer and content with a positive attitude towards her work. I highly recommend this product!”

Amy Miller & Grace
"Myself & Grace wouldn't be where we are today without the help of NAF Oestress. Prior to starting Grace on Oestress, she was such an anxious mare, proving very difficult to train, but after a month on Oestress she was a changed mare! NAF Oestress is now our daily ritual!"

Jean Langrish
"I use Oestress all year round for my mare, it’s made a huge difference to her. Knowing she’s comfortable gives me peace of mind."


