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Electrolyte replacement and isotonic rehydration

36 reviews. 4.9 / 5
Trusted Feefo Customer - 10/08/2022 22:38
Good quality product. Out of 5 horses only 2 will eat this even tried to disguise the product no way they would not eat any of their feed
Trusted Feefo Customer - 10/07/2022 20:21
We have used replenish for many years excellent product
Trusted Feefo Customer - 10/04/2022 20:09
This has helped the old boy who has suffered with dehydration
Sandra - 11/10/2021 20:59
Always helps the horses to get back on track
Gillian - 23/08/2021 11:56
Thrilled with this product, now on my second tub. My horse hoovers it up, his coat is looking fantastic and he's significantly gained weight and condition.  On our second bucket, definitley worth the price tag.
Kerry - 16/06/2021 22:21
Have used this for years especially when showing and having to travel in the summer months
Trusted Feefo Customer - 25/05/2021 07:35
Great product to help keep my horse in tip top condition
Pat - 30/10/2020 06:27
My horses are doing well on this product. One of them is very picky and will often refuse to eat any thing not food. She accepts Replenish in her feed.
Rebecca - 01/09/2020 08:51
I asked for some nutritional advice about my PSSM pony and his electrolytes. The advice was very helpful and I am already noticing a difference in his general well-being. The product is reasonably priced and perfect to add to his mash feed.
Pat - 20/08/2020 04:11
After doing a great deal of research, I think Feedmark products are, whilst not cheap, of very good quality and effective. I particularly like the joint supplement, which is very high spec.

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Nutrition Information

Replenish™ is a balanced blend of the essential electrolytes Sodium, Chloride, Potassium, Calcium and Magnesium, which are lost through sweat whilst exercising.  Optimal electrolyte status is vital for peak performance, and these should be fed on a daily basis when training and competing, as the electrolytes lost in sweat are not likely to be replaced by normal hard feed or forage, which could lead to a negative balance.

As well as keeping competing horses performing at their best, electrolytes are essential for correct muscle and nerve function, keeping the horse hydrated and healthy.



Sodium chloride, Potassium chloride, Glucose, Calcium gluconate, Magnesium chloride.


  Additive number  per kg
Anti-caking agent    
Silicic acid E551a 15 g



Crude protein 0.7%
Crude oils & fats  1.3%
Crude fibre  <0.1%
Crude ash 94.4%
Sodium 30.4%

Feeding Guide


Weight of Horse/Pony

Amount per day

Maintenance - Light work         

Amount per day

Medium - Hard work                 

Up to 250kg ¼ scoop ½ scoop
250kg - 400kg ¾ scoop 1½ scoop
400kg - 600kg 1 scoop  2 scoops
Over 600kg 1 ¼ scoops 2 ½ scoops


1 level (50ml) scoop of Replenish™weighs approximately 50g

Add Replenish™ to the feed of working horses every day.

For rehydration, make an isotonic oral solution by dissolving one scoop (50g) of Replenish™in 5½ litres of water.

Replenish™mixed in water should be offered to horses and ponies after long or hard work to help restore normal fluid balance. It is also beneficial where electrolyte and fluid loss is a result of diarrhoea. Horses may have to be trained to accept isotonic electrolyte solutions, so offer the solutions after training sessions before use during competition.

Note: always ensure your horse is fully hydrated before hard work, giving free access to plain water if electrolyte solutions are refused.

Feed supplements should be fed according to body weight. Introduce to the horse's diet gradually, splitting between feeds (when applicable).

Replenish™is a complementary feeding stuff for equine animals. Feedmark uses nothing in the formulation of this product that contravenes competition rules.