NB Lots of New Stock of most products due next week. Expected soon after Monday 11th December 2023. Please make sure to order plenty of what you need to last you until well into January next year. Our last day for shipping to you this year is Tuesday 19th December 2023. We are then closed for two weeks' staff holidays and will process the first orders in 2024 from Wednesday 3rd January.

PRO ACIDBUF 100% Natural Equine Acid Buffering Supplement


Stock Weight DescriptionPriceQuantity
15 1.5KgHover your mouse here to view multi-buy discountsClick here to view the multi-buy discounts below.. One bag will last a month. £14.99 -+
QuantityDiscountPer Item Price
2-5 -£0.50 £14.49
6+ -£1.00 £13.99


AcidBuf is a gentle slow-releasing buffering agent derived from the sustainably harvested calcified skeleton of red algae.

0% Sugar and Starch

Acidbuf has a honeycomb structure that provides a large surface area of (>10m2) per gram.
Research shows this had a significant buffering action for 4-6 hours under simulated in vitro stomach digestion conditions and also stimulated in vitro hindgut fermentation activities.
(Moore-Colyer, M. et al. (2014). Journal of Equine Veterinary Science. 34(3):391–397)


  • Acid Buffer
  • Help in the prevention & solution of acidosis problems in horses & ponies
  • Longer buffering action than limestone flour or sodium bicarbonate.
  • Help maintain a higher PH over a prolonged period
  • Support a healthy hindgut
  • Support a healthy digestive system during periods of heavy work and stress.
  • Support the health of the stomach lining
  • May help reduce behavior problems associated with digestive distress.

Suggested intake:

10g per 100kg of body weight per day. (50g per 500kg Horse)
1 x 10ml scoop will give approx = 10g. (Scoop not included).

A feed material for horses.
Analytical Constituents : Calcium 30 %, Magnesium 5.5%, Ash 95%.
Composition: Maerl

How long will a bag last?

Fed at the rate of 50g per day (average 500kg horse) a 1.5Kg bag will last 30 days.

Pack size and availability: Progressive Earth Pro Acidbuf equine feed supplement is available in resealable grip seal pouches containing 1.5 Kg. Scoop not included.
Multiple purchase options are available.

9 reviews for PRO ACIDBUF 100% Natural Equine Acid Buffering Supplement

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  1. Claire (verified owner)

    Definitely keeps my Endurance arabian’s tummy protected from ulcers. An absolute must in our feeding regime

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  2. Tara Jones (verified owner)

    Definitely helping my horse who is grass sensitive

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  3. Anonymous (verified owner)

    Great product

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  4. Rachel Evans (verified owner)

    I cannot recommend this product enough. I have a spooky horse who has shown symptoms of ulcers before, so started him on Acid Buff. He is much more trustworthy out hacking now as he is less jumpy, and no longer crabby to do up his girth. So impressed with the clear difference I’ve seen in him!

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  5. Anonymous (verified owner)

    Great product

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  6. Tara Jones (verified owner)

    Definitely helping my horse with grass sensitivity.

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  7. Claire Fowler (verified owner)

    Amazing to see my horse happy and maintaining great condition on the Pro Acidbuf. Brilliant stuff

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  8. Joanne (verified owner)

    Very good value in comparison to several other brands

    (0) (0)
  9. Barbara H. (verified owner)

    I love products from Progressive Earth. Acid Buff works very well for my mare.

    (0) (0)

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