Everyone knows a “moody mare” – whether their hormones are causing them to be difficult to handle, ride or train, or are interfering with a broodmare’s natural breeding cycle, it can present a real challenge. But this is something that supplements for moody mares can help with.
The length of a mare’s natural breeding season varies, but it typically starts around March/April each year, so spring is a great time to begin supplementing to encourage regularity, reduce unpredictability and support more consistent behaviour, which will in turn lead to improved performance. Most hormonal supplements for mares are a combination of a range of herbs that are known for their regulating and calming properties.
If you compete with your horse then it is important you make sure any supplements you use do not contain any prohibited substances.
Supplements for moody mares: what are your options?
Here is a selection of the best supplements for moody mares that are currently available, including the manufacturers’ descriptions of their products…
NB: Cost per day has been calculated using the maintenance measure for a 500kg horse in light work (where there was variation) and the RRP of the smallest available tub. Some products require you to feed more in certain situations or a loading dose, which will increase the cost per daily measure, while buying a larger tub will likely decrease it – these costs per day are a guide only.
Dodson & Horrell Stroppy Mare
Form: Powder | Sizes: 1kg, 2.5kg | RRP: £13.50 for 1kg | Daily measure: 23g | Cost per day: £0.31 |
A comforting blend for a hormonal mare that includes herbs that support hormonal function and the reproductive system, as well as having calming properties.
NAF Five Star Oestress
Form: Liquid | Sizes: 1l, 2l, 5l | RRP: £24.99 for 1l | Daily measure: 25–50ml | Cost per day: From £0.62 |
This supplement compliments the natural oestrus cycle by encouraging regularity and supporting hormone balance. Also available as a powder.
Global Herbs FriskyMare Plus
Form: Powder | Sizes: 1kg, 5kg | RRP: £42 for 1kg | Daily measure: 22g | Cost per day: £0.92 |
A mix of traditional calming herbs that help manage the behaviours and comfort of cycling mares, reducing unpredictability and aggression caused by hormone levels.
Form: Powder | Sizes: 1.25kg, 2.5kg, 5kg | RRP: £48.99 for 1.25kg | Daily measure: 42.5g | Cost per day: £1.67 |
A herbal supplement that supports temperament and hormone balance, helping to stabilise mood swings and promote calm and settled behaviour.
Nettex VIP Miracle Mare
Form: Powder | Sizes: 1kg, 2kg | RRP: £49.99 for 1kg | Daily measure: 25–50ml | Cost per day: From £0.62 |
This non-magnesium supplement contains wheatgerm extract, which helps with challenging oestrus-associated behaviour. It also has added B vitamins and natural botanical extracts to support healthy maintenance of the nervous system.
Equine America No More Moods
Form: Liquid | Sizes: 1l | RRP: £41.20 | Daily measure: 15ml | Cost per day: £0.62 |
This supplement contains micronutrients that help to balance hormones, contribute to relieving muscle tension and support a calm mare.
EquiNutritive Moody Madam
Form: Powder | Sizes: 600g, 1kg, 3kg | RRP: £25.99 for 600g | Daily measure: 30g | Cost per day: £1.30 |
This natural mare supplement is a carefully cultivated mix of seven dried herbs combined to maintain hormone balance and support your mare through her season.
Form: Liquid | Sizes: 500ml, 2l | RRP: £39.20 for 500ml | Daily measure: 20ml | Cost per day: £1.57 |
A herbal extract that supports the hormonal balance in sensitive and moody mares by helping to regulate the hormonal cycle.
Equi Life Vitex4 Equids Plus
Form: Pellet | Sizes: 7kg | RRP: £41.99 | Daily measure: 190g | Cost per day: £1.14 |
A palatable pellet that helps to create an even temper in moody mares.
Science Supplements HormonAid
Form: Powder | Sizes: 1.55kg | RRP: £39.99 | Daily measure: 51g | Cost per day: £1.32 |
Designed to work alongside the natural cycle of the mare, this supplement helps to relieve tension and support a more amenable demeanour. It contains vitex agnus-castus extract, which helps to ease transitions through the oestrus cycle, selected herbs that encourage a stable mood, vitamins that promote a good mental attitude and magnesium, which helps to ease hormone associated muscle cramps or tenderness.
Hack Up Bespoke
Form: Powder | Sizes: 1kg, 5kg | RRP: From £49.99 for 1kg | Daily measure: 15g | Cost per day: From £0.75 |
A bespoke formulation for hormonal support would include calming herbs such as milk thistle and chamomile, and can be refined to reflect the mare’s response.
Form: Liquid | Sizes: 1l | RRP: £49.50 | Daily measure: 30ml | Cost per day: £1.49 |
Formulated to support the mare during seasonal changes. It contains a blend of plant extracts including chaste berry and marshmallow that help to maintain and regulate normal hormone function.
Plusvital Breeding Syrup
Form: Liquid | Sizes: 5l | RRP: £54 | Daily measure: 60ml | Cost per day: From £0.62 |
A palatable syrup that is formulated to balance a mare’s feed during the breeding season. Supports nutritional needs of a growing foal.
Original Landmühle Mad Mare Herbal Mixture
Form: Powder | Sizes: 1kg | RRP: £19.90 | Daily measure: 30–40g | Cost per day: From £0.58 |
This supplement contains detoxifying herbs, such as monk’s pepper, cinnamon, turmeric and galangal root, to support mares with hormonal imbalances.
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