In this article:
Horses are not only wonderful beings that deserve our love and attention, but also mirrors of the nature that surrounds us. Their well-being is close to our hearts, especially when it comes to natural processes like the coat change. We see caring for our animals as a sustainable contribution to our planet. In this article, you will learn how zeolite can support the horse's coat change from within – from the right dosage to DIY coat sprays and real-life experiences from the stable. And why autumn is the ideal time to gently unburden your horse’s body.
When nature slowly retreats in autumn, a quiet but intense phase begins for our horses: the coat change. As a zeolite producer, I see right now how powerfully this natural mineral can act – and how much it helps horses master this transition with more ease.
In brief – why zeolite is so valuable during the autumn coat change - for quick readers

The coat change in autumn is more than just an external change – for your horse, it also means a major internal challenge. The metabolism is running at full speed, the detoxification organs are under pressure, and the immune system is working intensely.
Zeolite can support this transition period gently and naturally:
– It helps eliminate toxins
– It stabilizes the intestinal flora
– It promotes calm, balance, and regeneration
🍂 Now is the ideal time to do your horse good from the inside – with the pure power of nature.
Tips & challenges for horses in autumn: Read more background information here >>>
The coat change is essential for horses to adapt to the changing temperatures of the seasons. This process is not only fascinating, but also reveals a lot about the health and well-being of our four-legged friends.
By gaining a deeper understanding of this process, we as horse owners can improve our care practices and help our horses make this transition as comfortable as possible.
Furthermore, this offers the opportunity to rethink our practices and integrate more sustainable, earth-bound solutions into our horse care.

Basics of the coat change
The coat change in horses is a natural, annually recurring process that enables the animals to optimally adapt to changing climatic conditions. In spring, they lose their thick winter coat to prepare for warmer temperatures, while in autumn, the finer summer coat gives way to a thicker, warming winter coat. This process is largely controlled by light conditions – rather than by temperatures, as is often assumed. The change in the length of daylight signals to the horses that it is time to adjust their coat accordingly. This can lead to some horses starting their coat change in spring, even though it is still freezing cold outside.
Horse owners who value sustainability and love for the earth see the coat change as a reminder of how closely we are all connected to the natural cycles of our planet. It is a process that requires patience and teaches us to live and work in harmony with nature rather than against it.
In this spirit, it is important to me to choose products and methods that not only benefit my horses but also protect the earth. Zeolite products, for example, which I will discuss in more detail later, are an excellent example of such sustainable solutions. They not only offer health benefits for horses during the coat change, but are also a sign of our commitment to the environment.

Coat change in the horse in autumn – when many things change at once
When the days become noticeably shorter in late summer, our horses are already beginning to prepare for winter. Often long before we humans even think about winter jackets, their organism reacts to the decreasing daylight duration: the denser winter coat begins to develop.
The coat change in autumn differs from the coat change in spring. In spring, the horse primarily needs to get rid of its dense winter coat. In autumn, on the other hand, a new, denser coat is built. The body adjusts to cold, wetness, and shorter days.
And at the same time, many other things often change as well.
In autumn, many things often come together
For many horses, autumn is not just a time for a coat change, but a true transition period:
- The days are getting shorter.
- Temperatures fluctuate more sharply.
- The summer coat is replaced by a denser winter coat.
- The pasture changes or the time spent on pasture is reduced.
- Hay and roughage gain importance again.
- Exercise and keeping conditions may change.
- Wetness and mud increase.
- For some horses, digestion also changes.
That is precisely why it is worth looking not only at the coat in autumn, but at the entire horse.
When does the coat change start for the horse in autumn?
The starting signal often comes earlier than you think. What matters is not just the first cold autumn day. An important pace-setter is the decreasing duration of daylight.
This is why horses can already start building their winter coat in late summer, even though temperatures are still summery. When the coat change becomes visible and how thick the winter coat is varies from horse to horse and depends on age, housing, breed, state of health, and light conditions, among other factors.
How do I recognize that my horse is changing its coat in autumn?
The new winter coat becomes denser and longer. At the same time, some horses may appear more tired or have less stamina during this time. Itching, dandruff, or changes in the appearance of the coat can also occur.
Now a particularly attentive look is worthwhile: Is my horse eating and drinking normally? How is its digestion? What does the skin look like? Does it seem lively or unusually exhausted?
Because not every change should automatically be explained by the coat change. Conspicuous or persistent complaints should be clarified by a veterinarian.
Autumn also means a change in feed
One point is often overlooked when discussing the coat change: In autumn, many horses' feeding also changes at the same time.
Pasture time is reduced or ends entirely, while hay takes up a larger share of the daily ration again. The digestive system must therefore also adjust to changed conditions.
This is why autumn is a time for us to pay particular attention to slow feed transitions, sufficient roughage, fresh water, and an appropriate supply of nutrients.
The autumn coat change is therefore not just "more fur." It is part of a comprehensive seasonal adjustment of the horse.
Adaptability and resilience of our horses
The coat change is therefore more than just an external process; it is a sign of our horses' adaptability and resilience and a mirror of the natural world. As responsible horse owners, it is our task to support this process with knowledge, care, and sustainable practices. In doing so, we not only promote the health of our horses but also contribute to a greater awareness of the importance of sustainable action in our relationship with nature.
In the heart of every horse owner who loves nature and is committed to preserving our planet, the coat change plays a special role. It shows us how adaptable and resilient our horses are and reminds us that we should live in harmony with natural cycles. The difference between winter and summer coats in horses is a fascinating example of nature's wisdom, which knows exactly how to protect and support its creatures.
Winter coat
The winter coat serves as a natural protection against cold and adverse weather conditions. It is significantly denser, longer, and often slightly darker than the summer coat. These properties help the horse create an insulating layer that stores body heat while keeping out cold and moisture. The undercoat becomes denser, and the top hairs lengthen to provide effective protection against wind and weather.
As a sustainability-minded horse owner, I really value this natural adaptation process. It reminds me of how important it is to choose products and care methods that support and do not interfere with this natural process. For example, the use of natural supplements and additives, such as zeolite, can help promote skin health during the coat change without harming the environment.
Summer coat
In contrast, the summer coat is much finer, shorter, and lighter. This adaptation allows the horse to efficiently release excess body heat and protect itself from overheating. The thin coat also facilitates the evaporation of sweat, which supports natural cooling of the body. Although this coat offers less protection against the elements than the winter coat, it is perfectly adapted to the needs of the horse during the warmer months.
As someone who feels deeply connected to the earth, I admire this natural efficiency and strive to adapt my care practices accordingly. For example, it is important to provide sufficient shade and fresh water during the transition to the summer coat to help the horses adapt to rising temperatures.

Influencing factors on the coat change
The coat change in horses is influenced by various factors that determine how quickly and efficiently this process takes place. The main factors include:
Light conditions
The length of daylight is one of the decisive factors for the beginning and end of the coat change. Horses react to the increase or decrease in daylight, which triggers hormonal changes that in turn control the coat change. In spring, the increase in daylight causes horses to shed their winter coat, while the decreasing daylight hours in autumn signal the start of coat growth for winter.
Temperature
Although daylight length is the primary trigger, temperature also plays a role in the coat change. Extreme temperature fluctuations can accelerate or delay the process. Horses kept primarily outdoors often adapt their coats more effectively to the respective seasonal conditions than horses that spend a lot of time in stables.
Nutrition and health
The quality of the coat and the efficiency of the coat change are also indicators of the horse's nutritional and health status. A balanced diet, rich in essential nutrients, vitamins, and minerals, supports a healthy coat change. Deficiencies or health problems, on the other hand, can lead to delays or difficulties during the coat change.
Age and breed
Younger horses and certain breeds may go through the coat change faster or slower. Older horses sometimes have difficulty changing their coats efficiently, which may require extra care and possibly an adjustment to their diet. Genetic factors also play a role, as some breeds tend to develop thicker or thinner coats.
Environmental conditions
Living conditions can also influence the coat change. Horses that spend a lot of time in well-ventilated and naturally lit stables may show a different rhythm in their coat change than horses kept mainly outdoors. Likewise, access to clean water and appropriate shelter can positively influence overall health and thus the coat change.
Stress
Stress, whether due to environmental changes, social conflicts in the herd, or other factors, can negatively affect the coat change. Stress hormones can disrupt the normal cycle and lead to irregular or delayed coat changes.
Knowing and understanding these factors helps horse owners better support their animals' coat change and make appropriate adjustments to care, nutrition, or housing conditions as needed.
Challenges during the coat change
The coat change in horses can bring about various challenges that can be demanding for both the horse and the owner. Understanding these problems is crucial to being able to react appropriately and ensure the well-being of the horse.
1. Dandruff and itching
During the coat change, horses can increasingly suffer from dandruff and itching. This is often a result of increased activity in the hair follicles and can be exacerbated by dry skin. Regular brushing helps to remove dead skin cells and loose hair and promote skin health.
2. Uneven hair loss
Some horses experience uneven hair loss, where certain areas go bald faster than others or the new coat grows back irregularly. This can be aesthetically disturbing and, in rare cases, point to health problems.
3. Delayed coat change
Sometimes the coat change can be delayed, which is particularly common in older horses or those with health problems. A delayed coat change can make the horse more susceptible to weather influences and may require additional support through blankets or adjusted stable conditions.
4. Identifying problems
It is important to know the normal progression of the shedding process for every horse in order to determine when deviations occur. Signs that may indicate problems include excessive hair loss, visible skin irritation, lethargy, or changes in eating habits. Such symptoms should not be ignored, as they can point to more serious health issues.
Measures to support the shedding process
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Regular brushing: One of the most effective methods for supporting horses during shedding is regular and thorough brushing. This not only encourages the removal of loose hair and dander but also stimulates blood circulation in the skin, which supports the growth of new hair.
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Dietary adjustments: A balanced diet rich in essential fatty acids, vitamins, and minerals can improve skin health and support the shedding process. Special supplements can also be beneficial.
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Observation and early action: If there are signs of a problematic shedding process, it is important to act early. A veterinary examination may be necessary to rule out or treat underlying health issues.
- Optimizing living conditions: Adjusting living conditions to minimize stress and ensure proper ventilation and light exposure can also help to ease the shedding process.
By paying attention to these aspects, horse owners can help their animals make the transition between seasons as comfortable as possible and successfully master the challenges that shedding brings.
Zeolite during the horse's shedding phase – how it works from within

1. Optimizing feed through Zeolite
One of the most prominent features of zeolite is its ability to bind pollutants and toxins in feed and therefore remove them from the body. During the shedding phase, when the horse's metabolism ramps up to shed old hair and form new, the removal of toxins can help this process run more efficiently. Reduced toxin and pollutant exposure can promote healthier skin and stronger hair regrowth.
2. Digestive support
Zeolite can also promote digestive activity by helping the optimized feed balance the pH value in the digestive tract and improve nutrient absorption. Optimized digestion ensures that horses receive the necessary vitamins, minerals, and other nutrients essential for the formation of a healthy coat and for supporting the shedding process.
3. Improving skin health
All of this can indirectly contribute to skin health. Healthy skin is fundamental to a healthy coat. By reducing inflammation and supporting skin function, zeolite can help ensure that the new coat grows back healthy and the horse overall experiences fewer skin problems during the shedding phase.
4. Reducing stress
Although zeolite primarily acts on physical processes in the body, the general improvement in well-being supported by its use can help reduce the horse's stress level. Stress is known to negatively influence the shedding process, so any measure that helps reduce stress can also positively affect shedding.
Zeolite shedding dosage & application – step by step
For use in horses, zeolite is mixed into the feed or sprinkled on top of the hay. Zeolite is available in powder form or in pellet form. It is equally effective.
The exact dosage is adjusted to the horse's weight. 5g per body weight of the horse per day.
Zeolite is a valuable supplement to support horses during the shedding process, as feed optimized with zeolite promotes detoxification, supports digestion, improves skin health, and contributes to general well-being.
Experience reports on the use of zeolite during the shedding phase
- "Since I've been mixing zeolite powder into my two horses' feed, I've noticed a significant improvement during shedding. Less itching and a shinier coat are the results. I am convinced by the natural support that zeolite offers and will continue to use it." Martina ★★★★★
- "I was skeptical at first, but after trying zeolite pellets, I am impressed. My older horse always had difficulties during shedding, but this year it was much less stressful for him. His coat looks healthy and he seems overall more comfortable. Definitely a product that delivers what it promises." J.F. ★★★★★
- "The use of zeolite powder for my mare has made a big difference. Her shedding is much smoother now, and the usual skin problems have decreased. Plus, I love how natural and safe it is. A great product for every horse owner!" Sophie ★★★★★
- "I have been giving my horses zeolite pellets for a few months and could notice a significant improvement in their digestion and coat condition. Especially during shedding, they seem less stressed and their coat becomes thick and shiny faster. A must in my horse care!" Lu. ★★★★★
- "Zeolite powder has proven to be a valuable supplement in my horses' diet. Not only does their coat grow back faster and look healthier during shedding, but their general vitality has also improved. I am grateful for this natural product and can recommend it to anyone who wants the best for their horses." E.★★★★★
DIY recipe for coat sprays for horses
DIY coat spray recipe 1: For flaky areas
Ingredients:
- 300 ml water (preferably distilled)
- 2 tbsp zeolite powder (to support skin health and for gentle cleaning)
- 50 ml apple cider vinegar (has a soothing, antibacterial effect and helps to balance the skin's pH value)
- 30 ml active microorganisms (promote healthy skin flora and support regeneration)
- 2 tsp aloe vera gel (moisturizes and soothes the skin)
- 5 drops of essential tea tree oil (optional, has an antiseptic and anti-inflammatory effect)
Preparation:
1. Put the zeolite powder into a bowl with 300 ml of distilled water and stir thoroughly until the powder is completely dissolved.
2. Add the apple cider vinegar and the active microorganisms and stir the mixture evenly.
3. Add the aloe vera gel to the liquid and mix well until it is evenly distributed.
4. Optional: Add 5 drops of essential tea tree oil to enhance the effect on flaky areas.
5. Fill the mixture into a clean spray bottle and shake it well before each use.
Application:
- Shake vigorously before use.
- Spray this mixture specifically onto the flaky areas of the coat.
- Gently massage into the skin to promote the absorption of the active ingredients.
- Leave on for 10-15 minutes and wipe off if necessary with a clean, damp cloth.
Note: The spray should be applied to the affected areas 2-3 times a week to soothe the skin, reduce flaking, and support skin regeneration.
DIY coat spray recipe 2: "Spring fresh coat care"
Ingredients:
- 500 ml water (preferably distilled)
- 2 tbsp zeolite powder (for cleaning and strengthening)
- 50 ml apple cider vinegar (for disinfection and shine)
- 20 ml active microorganisms (to support skin flora)
- 5 drops of essential lavender oil (optional, for soothing and a pleasant fragrance)
Preparation:
1. Put the zeolite powder into the distilled water and stir thoroughly until the powder is well distributed.
2. Add the apple cider vinegar and the active microorganisms and mix the solution gently.
3. Optional: Add a few drops of essential lavender oil to give the spray a pleasant fragrance.
4. Fill the mixture into a spray bottle and shake well before applying the spray to your horse's coat.
Application:
Shake well before use and spray onto the clean, dry coat.
Massage gently and wipe off if necessary with a soft cloth.
DIY coat spray recipe 3: "Natural protection & shine spray"
Ingredients:
- 400 ml water (preferably distilled)
- 3 tbsp zeolite powder (for cleaning and vitalization) - 80 ml apple cider vinegar (for gentle cleaning and shine enhancement)
- 30 ml active microorganisms (to support skin health)
- 10 drops of essential tea tree oil (optional, for additional protection and skin care)
Preparation:
1. Mix the zeolite powder with the water in a bowl and stir evenly until the powder is completely dissolved.
2. Add the apple cider vinegar and mix the solution again.
3. Add the active microorganisms and stir carefully to combine the ingredients well.
4. Optional: Drizzle in the essential tea tree oil to additionally support the effect on the skin.
5. Fill the mixture into a spray bottle and shake vigorously before each application.
Application:
Shake well before use.
Spray generously onto the coat, especially in areas that are particularly stressed.
Massage gently and let dry.
These coat sprays nourish your horse's coat, support the natural shedding process, and have a gently cleansing and strengthening effect through the combination of natural zeolite, microorganisms, and apple cider vinegar.
❓Questions from horse owners about supporting the shedding process with zeolite:
❓1. How exactly does zeolite support my horse during the shedding process?
Due to its unique properties of binding toxins and transporting them out of the body, zeolite can positively influence the shedding process. It helps to improve the excretion of pollutants, which can contribute to healthier skin and stronger hair growth. Additionally, it supports digestion and can thus optimize nutrient absorption, which is necessary for healthy hair growth.
❓2. In what form should I administer zeolite and is there a difference between powder and pellets?
Zeolite is available in both powder form and as pellets. The choice depends on your personal preferences and your horse's feeding habits. Powder can be mixed into the feed more easily and allows for a more precise dosage, while pellets might be more attractive to some horses and easier to administer. The effectiveness of zeolite is the same in both forms.

❓3. What dosage of zeolite is recommended for my horse during the shedding process?
We recommend basing the dosage on the horse's body weight. And please don't be surprised why we recommend so little zeolite. HORSEKRAFT zeolite is very fine, therefore very effective, because the finer the powder, the larger the surface area, and the more pollutants the powder can bind.
Read more about the dosage recommendation here >>>
❓4. How long should I give my horse zeolite during the shedding process?
Zeolite can be administered for the entire duration of the shedding process to achieve optimal results. Some owners choose to keep the supplement even beyond that to permanently optimize the feed and support the horse's well-being. And others do a spring cure. Observe how the horse reacts to it.
❓5. Are there any side effects when using zeolite for my horse during shedding?
Zeolite is considered safe for use in horses and is officially approved EU-wide as feed additive E568. As a natural mineral that binds toxins and harmonizes digestion, positive changes may become apparent – some horses become more energetic, others more balanced, because the body is less occupied with internal stressors. For horses with specific health conditions or current medication, we always recommend consulting a veterinarian or animal naturopath.
❓6. Can I combine zeolite with other supplements or medications?
In most cases, zeolite can be safely combined with other supplements. However, it should be noted that zeolite has the ability to bind substances, which could theoretically affect the absorption of simultaneously administered medications or supplements. To be on the safe side, it is recommended to administer zeolite at a different time of day than other medications or supplements and to consult a veterinarian in case of doubt.
❓7. What symptoms can horses show during shedding?
During the shedding season, horses may exhibit a range of symptoms or behavioral changes that indicate this natural process. Here are some of the most common symptoms that can occur in horses during shedding:
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Increased hair loss: One of the most obvious signs is the increased hair loss as the horse transitions from its winter coat to summer coat or vice versa. This can lead to a visible accumulation of loose hair in the stable, on the pasture, or on grooming tools.
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Itching: Many horses experience increased itching during the shedding process. This can cause them to rub against fences, trees, or other objects more frequently to relieve the itch.
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Dandruff: The skin may be drier than usual during shedding, which can lead to increased dandruff. This can become especially apparent when brushing the horse.
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Uneven coat: Sometimes the coat may look uneven, with bald patches or areas where the new coat is growing back faster or slower.
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Changed coat texture: The new coat may initially have a different texture before it has fully set in. The winter coat is typically thicker and longer, while the summer coat is finer and shorter.
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Changed feed intake: Some horses may show changed feed intake during shedding, either through an increased appetite, as more energy is required for the process, or through a decreased appetite due to stress or discomfort.
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Fatigue or reduced performance: The additional energy expenditure for shedding can lead to some horses appearing more tired or showing temporarily reduced performance.
It is important to note that these symptoms are generally normal and temporary. Nevertheless, one should watch for signs that could indicate an underlying health issue, especially if symptoms such as persistent, intense itching, skin irritation, or significant changes in the horse's behavior or general condition occur.
Sources & summaries on the effects of zeolite in horses
1. Nekrasov et al. (2020)
👉 The Use of Natural Clinoptilolite in Horse Feeding
→ This Russian study shows that feeding clinoptilolite in sport horses stabilizes biochemical blood values, particularly the antioxidant capacity and the concentration of fat-soluble vitamins (A, E). The horses showed better metabolic stability during high-demand phases – such as shedding.
🔗 To the study
2. Lang et al. (2001)
👉 Increased plasma silicon concentrations and altered bone resorption in response to sodium zeolite A supplementation in yearling horses
→ Supplementation with zeolite (sodium zeolite A) significantly increased silicon levels in the blood of young horses. This led to a reduction in bone resorption – a sign of stronger mineral supply and healthy bone metabolism.
🔗 To the publication
3. O’Connor et al. (2006)
👉 Mineral balance in horses fed two supplemental silicon sources
→ Two silicon sources (including zeolite) were compared. The study proves that silicon is absorbed via feed and can favorably influence the mineral balance in horses – especially during phases of increased physical exertion.
🔗 To the publication
4. Valpotić et al. (2017)
👉 Review: Zeolite clinoptilolite as feed additive in veterinary medicine
→ Comprehensive review paper on the use of zeolite in animal feeding. According to studies, clinoptilolite can:
– bind harmful substances in the intestine
– stabilize the gut flora
– stimulate the immune system
– improve nutrient absorption
→ Especially recommended during transition periods like shedding or changes in feed.
🔗 To the review study (PDF)
Shedding is an intense time – for your horse and for you. With zeolite, a little patience, and a keen eye for your animal's signals, this transition becomes easier from year to year. Many horse owners report exactly that.
👉 HORSEKRAFT Zeolite Powder – discover now →
👉 HORSEKRAFT Zeolite Pellets – dust-free & practical →
👉 Read all horse experiences →

Read more about zeolite for horses ? Click here >>>
Thrush? Here we have some tips for you on how zeolite can support your horse >>>
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About the author
Andreas J. Pfeiffer
Co-Founder STEINKRAFT | Horse owner for 30 years | Open stable Schleswig-Holstein | Today in Austria
Andreas writes from real everyday stable life. Three decades of keeping horses on his farm in Schleswig-Holstein – leisure and competition horses, self-built open stables, experienced everything himself. Today he lives in Austria and runs STEINKRAFT together with his wife Michaela – the stable in Northern Germany continues to run, the passion for horses has never ceased.
Still have a question? 🐴
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