Global Herbs
Behaviour
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Global Herbs Calming Supplements for Horses
Short answer: Global Herbs calming supplements are herbal feed supplements fed daily (or before a known flashpoint) to help support a steadier, more settled horse. Supercalm is the usual starting point and is the cheapest way in at from £18.60 for the 500g tub. If you only need help for a one-off moment, the Supercalm Syringe is from £9.47. Geldings showing rig-like behaviour are usually pointed at Rigcalm (from £38.85); mares whose behaviour changes in season at FriskyMare Plus (from £39.24). Nine products sit in this collection and eight of them have sizes in stock right now.
In a hurry? Pick by the problem
- General fizziness, spooking, a busy brain → Global Herbs Supercalm, from £18.60
- One stressful event (travelling, clipping, the farrier) → Global Herbs Supercalm Syringe, from £9.47
- Want a different daily powder to try → Global Herbs Magcalm, from £26.52
- Gelding acting stallion-ish → Global Herbs Rigcalm, from £38.85
- Mare who changes when she comes into season → Global Herbs FriskyMare Plus, from £39.24
- Prefer a liquid you can syringe or pour on feed → Global Herbs Herbalcalm Liquid, from £35.08
- Buying for a yard or a long season → the 5kg tubs, such as Global Herbs Herbalcalm from £168.74
Not sure which one fits your horse? Get in touch and our team will help.
Which Global Herbs calmer is right for my horse?
All of these come from the same brand and are fed as part of the daily ration, so the choice is really about what triggers the behaviour and how long you need to feed for. The table below shows every product in this collection that has stock, the size options available, and the lowest in-stock price.
| Product | Usually chosen for | Form & sizes in stock | From (in stock) |
|---|---|---|---|
| Global Herbs Supercalm | Everyday nervy, fizzy or distracted behaviour | Powder 500g, 1kg, 5kg · liquid 1 litre | £18.60 |
| Global Herbs Supercalm Syringe | A single known flashpoint rather than daily feeding | Single syringe | £9.47 |
| Global Herbs Magcalm | An alternative daily calming powder — check the tub for the full ingredient list | Powder 1kg, 5kg | £26.52 |
| Global Herbs Rigcalm | Geldings displaying rig-like or stallion-ish behaviour | Powder 1kg, 5kg | £38.85 |
| Global Herbs FriskyMare Plus | Mares whose behaviour changes with their cycle | Powder 1kg, 5kg | £39.24 |
| Global Herbs FriskyMare | The original mare blend, bulk buy only | Powder 5kg | £190.70 |
| Global Herbs Herbalcalm | Long-run or multi-horse feeding | Powder 5kg | £168.74 |
| Global Herbs Herbalcalm Liquid | Fussy feeders who pick powder out of the bucket | Liquid, 1 litre twin pack | £35.08 |
Prices shown are the lowest currently in stock and can change. Sizes sell out at different rates, so the cheapest option on the day may be a bigger tub.
Powder, liquid or syringe — what is the practical difference?
Powders
Powders (Supercalm, Magcalm, Rigcalm, FriskyMare Plus, FriskyMare, Herbalcalm) are scooped onto a damp feed. They are the cheapest per day, especially in the 1kg and 5kg tubs, and they suit horses who are already getting a hard feed or a handful of chaff twice a day.
Liquids
Supercalm is also sold as a 1 litre liquid, and Herbalcalm Liquid comes as a 1 litre twin pack. Liquids coat the feed rather than sitting on top of it, which helps with horses who sift powder out, and they are easy to measure accurately.
Syringes
The Supercalm Syringe is a single-dose option at £9.47. It is designed for the horse who is fine day to day but finds one specific thing hard — loading, the vet, clipping, a first outing of the season. There is no need to commit to a tub to try it.
How much does it cost to keep a horse on a Global Herbs calmer?
The entry point is £18.60 for a 500g tub of Supercalm. If you know the supplement suits your horse, moving up to a 1kg or 5kg tub brings the cost per day down considerably — the 5kg tubs run from £136.68 (Magcalm) to £190.70 (FriskyMare). Always work out cost per scoop rather than cost per tub, using the feeding rate printed on the pack for your horse's bodyweight.
How do I introduce a calming supplement safely?
- Rule out the physical stuff first. Sudden behaviour changes deserve a vet, dental, saddle-fit and farrier check before anything is added to the bucket.
- Change one thing at a time. Start one supplement on its own so you can tell what is actually helping.
- Introduce gradually. Build up to the full feeding rate over several days so the horse accepts the taste.
- Give it a fair trial. Herbal supplements are generally fed for a few weeks before you judge them, unless you are using a syringe for a single event.
- Keep a note. Write down what the horse was like before you started; memory flatters progress.
- Check with your vet if your horse is on medication, is pregnant or breeding, or has an existing health condition.
These are feed supplements that support normal behaviour and wellbeing. They are not medicines, they do not treat or cure any condition, and they are no substitute for correct feeding, turnout, training and veterinary care.
Competing on a calmer
If you compete under rules that test for prohibited substances, check the current rules for your discipline and the ingredient list on the pack before you feed anything — and check again when a product is reformulated. Governing-body lists change, so treat your own governing body as the authority rather than any retailer. If you are unsure, get in touch and our team will help you find the ingredient information you need.
Frequently asked questions
Which Global Herbs calmer should I start with?
For general nervousness or fizziness, most people start with Global Herbs Supercalm — it is the broadest option and the cheapest way in at £18.60 for 500g. Choose Rigcalm (from £38.85) if the horse is a gelding behaving in a rig-like way, or FriskyMare Plus (from £39.24) if you are dealing with a mare whose behaviour shifts with her cycle. If the issue is one specific event rather than everyday behaviour, the Supercalm Syringe at £9.47 is the low-commitment starting point.
How long does a calming supplement take to work?
It varies from horse to horse. Daily herbal supplements are usually fed for a few weeks at the full rate on the pack before you can judge whether they are helping, because you are looking for a gradual shift rather than an instant change. Single-dose syringes are used ahead of a specific event, following the timing on the label. No supplement produces a guaranteed result, and none of them replaces schooling, routine or turnout.
Can I feed two Global Herbs supplements at once?
Better not to, at least at first. Feeding one product at a time is the only way to tell which one is actually making a difference, and stacking supplements makes it easy to double up on the same ingredients without realising. If you are considering combining products, or your horse is already on other supplements or veterinary medication, speak to your vet or a qualified nutritionist first.
Powder or liquid — which is better?
Neither is stronger; it is about how your horse eats. Powders are the most economical, particularly in the 1kg and 5kg tubs, and work well mixed into a damp feed. Liquids — the 1 litre Supercalm liquid and Herbalcalm Liquid from £35.08 — coat the feed, which helps with horses who sort powder out of the bucket, and they are quick to measure. If your horse gets only a token handful of chaff, a liquid is often easier to get into them.
Is the 5kg tub worth it?
Only once you know the product suits your horse. The 5kg tubs in this collection run from £136.68 for Magcalm up to £190.70 for FriskyMare, and they bring the cost per scoop down a lot over a season or across several horses. Start on the smallest size you can — the 500g Supercalm at £18.60, or a 1kg tub — prove it works, then buy the big one. Check the best-before date on arrival if you are buying enough for many months.
What if the size I want is out of stock?
Stock moves between sizes, so a product can show only its larger tub for a while. Eight of the nine products in this collection currently have at least one size available. If the exact size or format you need is not showing, get in touch and our team will help you check when it is due back or suggest the closest alternative in the range.
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Last reviewed 2026-07-24 by the Just Horse Riders team.