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Cavalor® Venus is an herbal extract that supports the mare’s fertility cycle, helping to alleviate the effects of irregular ovulation.

Hormonal fluctuations during their complex fertility cycle can make mares very restless and uncomfortable. Stubbornness and irritability, but also stiffness and other physical discomforts are characteristic of mares in oestrus. The impact this has on sports performance and trust between rider and horse is not to be underestimated. Cavalor® Venus doesn’t block their cycle, it just creates a more regular one. The calmer and more regular is the cycle, the more pleasant your mare will be. Cavalor® Venus is composed of several natural active ingredients that support the metabolism during the cycle, suppress characteristic (negative) behaviour during oestrus and provide overall relaxation for both mind and body. You’ll experience a totally different horse, one that feels better in her own skin.


Naturally effective: herbal extracts for a guaranteed result.

How herbs work is determined by the content of the active ingredients. To make sure that every production has the same effect, Cavalor® relies on extracts. In contrast to dried herbs, extracts always have the same active ingredient content.

Vitex agnus castus: has a regulatory effect on various hormonal systems. This berry has a harmonising effect on the mare’s hormonal balance, which produces a normal, regular and balanced cycle. This plant also has a positive effect on (female) fertility and inhibits the sex drive of stallions with an excess of testosterone. The plant owes its ‘monk’s pepper’ nickname to its use during the Middle Ages to suppress the irresistible desires of the monks. Origanum majorana: suppresses the production of testosterone and mood swings during oestrus, promotes the mare’s rideability.

Taraxacum officinale: helps the liver dispose of waste produced during the fertility cycle.

Humulus lupulus: has a relaxing effect on the central nervous system.

Achillea millefolium: relieves cramps associated with the menstrual cycle.

Magnesium bisglycinate: organic, highly absorbable form of magnesium. Has a soothing effect and helps muscles relax.

Vitamin B6: has a positive effect on the metabolism and promotes the absorption of active ingredients.


Where liquid supplements are concerned, it is normal for some ingredients to settle and form a layer at the bottom. For that reason, please shake the bottle well before each use so that the consistency of the dose administered is consistently homogeneous. Mix 2 x 5 ml (for ponies) or 2 x 10 ml (for horses) into the ration daily or administer Cavalor® Venus directly by mouth. Maximum of 100 ml per horse per day.

TIP: For some horses a starting dose of 40 ml during the first 4 to 5 days is recommended, after which the dose can be gradually reduced. On average, it takes about 3 weeks before an effect is clearly visible. Occasionally, the mare’s behaviour will worsen after a few days. This is a good sign and indicates that the product is working. To ensure the most stable cycle possible, administering Cavalor® Venus over a prolonged period on a daily basis is recommended. You can also incorporate a break from Cavalor® Venus when your horse has been prescribed rest or isn’t required to perform.

TIP: Experience has also proven that Cavalor® Venus can be used on stallions and geldings as well. That makes sense if you read above about how one of the ingredients was once used to help monks restrain their natural urges... 


Store out of reach of children. May be stored up to 1.5 years after the production date.

- 500 ml / 16.9 fl.oz

- 2 L / 67.6 fl.oz

Shipping information

All orders placed with EquiZone Online are packed and sent from our warehouse in Germany. We aim to have all orders sent out within 2-5 days, however, we hold the right for delays in the holiday season or during sale periods (such as Black Friday). If we currently do not have an item in stock we will inform you of the estimated arrival time of the product.

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If you have any questions please feel free to email us at or call us on +49 5976 6972836

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Returns information


If you are not satisfied with your product in any way, EquiZone Online gives you 30 days to return or exchange your items. Please note that EquiZone Online is unable to provide a refund for any items that appear to be soiled, used or damaged in any way or items returned without original packaging and tags. Exchange of free items or bonus products is not allowed. If returned you will not receive any monetary or material compensation for them. 

To return or exchange your item, pack it carefully in a separate box or padded post envelope, complete this form and send it to the address listed below:

Equi Zone International

Kruppstr. 2

48499 Salzbergen


Size chart
Supplement for mares Hormonal supplement for mares

Customer Reviews

Based on 1 review
Kim Farrington (Chiclana de la Frontera, ES)
Venus performs well vs other makes

I have a mare who is uncomfortable during her seasons and at times irregular. We have tested her and used veterinary hormones to correct this but her symptoms and pain returned after a few months. Using Venus eliminates her symptoms entirely. We have used other similar products from other brands and now are happy to remain with her on Venus as an easy way to keep her comfortable.