Horse First
Health & Wellbeing
Jump straight to the care you're after - calmers, joints, digestion and more.
Horse First Health & Wellbeing Supplements
Which Horse First supplement does my horse actually need?
Pick by the job you want done. For an everyday all-rounder covering joints, hooves, coat and digestion, start with Horse First Keep Me Sound (1.5kg, £24.51). For targeted joint and mobility support, choose Horse First My Joints Plus (1.5kg, £49.95) or Horse First My Joints (5kg, £100.68). For a calmer, more settled horse, Horse First Relax Me (750gm, £19.65) is the daily option and Horse First Relax Me Now (30ml syringe, £9.12) is the one-off. For horses that sweat hard, Horse First Heavy Sweat (1kg, £10.04) replaces salts daily and Horse First Heavy Sweat Now (30ml syringe, £6.74) is the single-dose version. Everything here is from the Horse First range, and supplements support a horse's normal health and condition alongside good feeding and management — they are not medicines. If your horse is unwell, lame or on medication, speak to your vet first.
In a hurry?
- Everyday, one tub does most jobs: Horse First Keep Me Sound, 1.5kg, £24.51.
- Joints and mobility: Horse First My Joints Plus, 1.5kg, £49.95.
- Calmer head, fed daily: Horse First Relax Me, 750gm, £19.65.
- Calmer head, just for today: Horse First Relax Me Now, 30ml syringe, £9.12.
- Hot day, hard work, lots of sweat: Horse First Heavy Sweat, 1kg, £10.04.
- Cheapest way to try the range: Horse First Heavy Sweat Now, 30ml syringe, £6.74.
Not sure which fits your horse? Get in touch and our team will help you match a supplement to your horse's workload and diet.
Horse First health & wellbeing supplements compared
Every product below has at least one size in stock right now. Prices shown are the lowest in-stock size for that product.
| What you want to support | Horse First product | In-stock size | From |
|---|---|---|---|
| Everyday all-rounder: joints, hooves, coat, skin and digestion | Horse First Keep Me Sound | 1.5kg | £24.51 |
| Joints and mobility, glucosamine with chondroitin, MSM and turmeric | Horse First My Joints Plus | 1.5kg | £49.95 |
| Joints and mobility, glucosamine with vitamin C, fed daily | Horse First My Joints | 5kg | £100.68 |
| Calm, focus and a settled temperament, fed daily | Horse First Relax Me | 750gm | £19.65 |
| Calm for a single occasion — travel, clipping, a busy venue | Horse First Relax Me Now | 30ml syringe | £9.12 |
| Immune and digestive support with garlic, seaweed and herbs | Horse First Garlic & More | 1.5kg | £17.87 |
| Replacing salts lost in sweat, fed daily | Horse First Heavy Sweat | 1kg | £10.04 |
| Replacing salts after one hard session | Horse First Heavy Sweat Now | 30ml syringe | £6.74 |
| Coat condition and skin, via omega oils and vitamin D | Horse First Omega D Oil | 4 Litre | £31.91 |
| An iron-based tonic for horses in work | Horse First New Bludd | 1 Litre | £13.53 |
How do I choose between the daily tubs and the single-dose syringes?
Two Horse First lines come in both formats, and the choice is about timing rather than strength. The daily powders — Relax Me (750gm, £19.65) and Heavy Sweat (1kg, £10.04) — are fed over weeks so the support is already in place before you need it. The 30ml syringes — Relax Me Now (£9.12) and Heavy Sweat Now (£6.74) — are for a specific moment: a long lorry journey, a first outing at a busy venue, or a hot day that took more out of your horse than you expected.
Plenty of owners keep both: the tub for the routine, a syringe or two in the lorry for the days that go off-plan.
Which supplement suits a horse in hard work?
Horses in consistent work lose more through sweat and put more load through their joints. A sensible starting pair is Horse First Heavy Sweat (1kg, £10.04) for salt replacement and Horse First My Joints Plus (1.5kg, £49.95) for mobility support. Horse First New Bludd (1 Litre, £13.53) is an iron-based tonic some owners use alongside these for horses in work — if you are considering it because your horse seems flat or lacking condition, get a vet's opinion first rather than supplementing blind.
Which supplement helps a dull coat?
Horse First Omega D Oil (4 Litre, £31.91) supplies omega fatty acids and vitamin D and is the straightforward choice where coat and skin condition are the concern. Horse First Keep Me Sound (1.5kg, £24.51) covers coat and skin as part of a broader everyday blend, so it is the better pick if you would rather feed one product than several. A genuinely poor coat can also point to worms, teeth or an underlying issue, so it is worth ruling those out.
What about a sharp or unsettled horse?
Horse First Relax Me (750gm, £19.65) is fed daily to support a calmer, more workable horse. Horse First Relax Me Now (30ml syringe, £9.12) is the version for one specific outing. Neither is a substitute for correct schooling, turnout and forage, and neither will sedate a horse — calmers support normal nervous-system function rather than switching behaviour off. If a horse's behaviour has changed suddenly, treat that as a potential pain signal and involve your vet.
Are Horse First supplements safe to feed together?
Many of these products are designed for different jobs and are commonly fed alongside each other — a joint supplement plus an electrolyte, for example. The two things worth watching are doubling up on the same nutrient (two products both supplying magnesium, or two both supplying salt) and total daily intake across your whole feed, including balancers and hard feed. Read the feeding instructions on each pack, and if you are combining three or more products, run the plan past your vet or a nutritionist.
Which Horse First supplement should I start with?
If you have no specific concern, start with Horse First Keep Me Sound (1.5kg, £24.51) — it covers joints, hooves, coat, skin and digestive support in one product, so you are not juggling several tubs. If you do have a specific concern, go straight to the targeted product: My Joints Plus (1.5kg, £49.95) for mobility, Relax Me (750gm, £19.65) for a calmer horse, or Heavy Sweat (1kg, £10.04) for a horse that sweats heavily.
Can I feed more than one Horse First supplement at once?
Usually yes, because the products in this range target different areas. Check the labels so you are not supplying the same nutrient twice from two sources, and count in anything else your horse gets such as a balancer or a fortified hard feed. Where a horse is on medication, has a diagnosed condition, or you want to feed three or more supplements together, ask your vet before you start.
What is the difference between Relax Me and Relax Me Now?
Relax Me (750gm, £19.65) is fed daily and builds into the routine, so it suits horses that are consistently sharp or unsettled. Relax Me Now is a 30ml syringe (£9.12) for one specific occasion — travelling, clipping, a first show — where you want support on the day rather than a long-term feeding plan. The same pairing exists for hydration: Heavy Sweat (1kg, £10.04) daily, Heavy Sweat Now (30ml syringe, £6.74) as a single dose.
How long before I notice a difference?
It depends on the product and the horse. Electrolyte support such as Heavy Sweat works around the session it is fed for. Coat, hoof and joint support work with the horse's own renewal cycles, so allow several weeks to a few months and judge over that period rather than day to day. Feed at the labelled rate throughout — under-feeding a supplement is the most common reason owners conclude it did nothing.
Are these supplements suitable for competition horses?
Competition eligibility depends on the ingredients in a specific product and the rules of your governing body, and those rules change. Always check the current ingredient list on the pack against your discipline's prohibited-substance guidance, and check any withdrawal requirements before you compete. If you need help finding the ingredient information for a particular Horse First product, get in touch and our team will help.
Will a supplement fix a lame or unwell horse?
No. Supplements support normal health, condition and nutrition — they do not diagnose, treat or cure anything. Lameness, weight loss, a sudden behaviour change or a persistently poor coat all need a vet's assessment first. Once your vet knows what is going on, a supplement can be a sensible part of the ongoing management plan.
Ordering from Just Horse Riders
Ten Horse First health and wellbeing products are in stock in at least one size, with prices from £6.74. If you would like a recommendation for your horse's workload, age or diet, get in touch and our team will help you narrow it down before you order.
Free UK delivery over £50 · 90-day returns · Expert help
Last reviewed 2026-07-24 by the Just Horse Riders team.