Keratex Hoof Hardener

Eligible for free e-certification with purchase
Keratex Hoof Hardener


Buy 2 or more, each at $43.23
Buy 3 or more, each at $42.29

In Stock. Usually Ships within 24 hours.

Quantity discount will reflect in cart.

Shipping weight = 1.00 lb.


Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.

Frequently Bought Together:

Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.

Product Summary:

Keratex Hoof Hardener
Selected by the Horse-Journal as "Editor's Choice" and "2010 Product of the Year"

Strengthens, Hardens & Protects Hooves.
Keratex Hoof Hardener strengthens weak, worn and cracked hooves by improving the molecular structure of the horn itself. Equally effective in wet & dry conditions.
Prevents the horn from taking in excess moisture, making it resistant to softening and weakening in wet conditions. This results in a reduction in shoe loss and abscesses.
Hoof Hardener is not an oil or a resin layer and does not seal the hoof; it will ensure the treated hoof is able to breathe naturally.
Moisture balance is properly maintained.
Should also be applied to the sole of the hoof to prevent bruising.

Hoof Hardener from Keratex is a gentle-acting chemical formulation which forms additional intermolecular bonds between molecules of keratin through the process of cross-linking. Keratin is the main protein constituent of horn and is best described as the building block of the horn structure.

The cross-linking process results in additional atoms being distributed between the keratin molecules to produce a tougher and stronger horn structure.

Many other products claim to strengthen the hoof, but usually this entails a superficial layer of resin or varnish. It works by actually improving the structure of  the horn itself.

Since it is neither a varnish or resin layer, it leaves no visible coating. Therefore the treated hoof is able to breathe and function naturally.

Water and ammonia damage the structure of the keratin molecule and how they interact with each other. This is, and always will be, a major problem for horse owners. The scientists at Keratex spent many years researching ways to rebuild the damaged molecular structure of hoof horn.

The result of this research was Keratex Hoof Hardener. Because of its unique nature, Keratex was granted a Patent. It is the only truly effective hoof hardener. No other manufacturers are allowed to use the technology developed by Keratex.

The horn which forms the visible part of the hoof capsule is dead. It has no blood supply and therefore cannot be regenerated or improved by supplements or ordinary inactive conditioners. High quality feed supplements will improve the quality of new horn being produced at the coronary band and will improve the rate of growth. Unfortunately, no supplement will influence the quality of existing horn. If it is cracked, it must grow out. It cannot mend itself.

However, with the active formulation of this product, the quality of existing horn can be improved chemically within just a few days. Obviously, cracks will not disappear, but the horn around them will be strengthened to resist further movement so they can grow out. Once treated, the horn will also be better able to support nails so shoes stay on better.

Because of its hardening and strengthening effects, it is superb for use on shod and unshod horses. 

A little more on the technical side.

Although the unique formula for Keratex Hoof Hardener is protected under patent laws, the following information is provided to help explain why this product is materially different from all other products and why it has earned unparalleled worldwide success with farriers, veterinarians and horse enthusiasts for more than a decade.

Farriers have used formalin for many years to harden horses' hooves. The action of formaldehyde on keratin is well known to be a simple cross-linking action. Methylene or bis-thioether groups are added by condensation reactions with reactive amino, sulphydryl or other groups on the keratin helix to form additional linkages to reinforce the rather labile disulphide links which occur naturally. It is quite incorrect to say that formalin hardens horn by removing water. Rather, it strengthens it by introducing these extra inter and intra-molecular links.

However, formaldehyde in its simple aldehyde state reacts too quickly. It case-hardens the hoof, thus preventing the entry of formalin to deeper layers, and also creating surface brittleness.  It also contains another substance which effectively slows down the reactivity of the -CHO group, thus giving time for the aldehyde to penetrate the outer layers of horn. This is facilitated by the presence of yet another compound in Hoof Hardener which temporarily modifies the hydrogen bonds which join the helix coils internally and externally. Having done this, the compound then evaporates, leaving the hydrogen bonds to re-make once the aldehyde is in place.

Keratex Hoof Hardener also contains an inorganic complexing agent. One end of the molecule of this agent co-ordinates onto a nitrogen atom in the keratin molecule. The other end modifies the keratin helix, thus effectively adding an aggregate to stiffen the horn. This process resembles the consolidating effect of the melanin in hoof horn. The melanin also acts as an aggregate and confers extra strength.

Finally, it contains a plasticiser to stop the horn from becoming brittle, and it also contains a powerful disinfectant to assist in maintaining general hoof health.

User Notes - Sold in 250 ml plastic bottles. Includes separate hoof brush for application.

Apply to lower half of hoof and sole, avoiding coronary band and frog.

Use daily for one week then twice weekly for general hoof maintenance.

If the hoof has been treated with any oils or greases over the past three months, degrease the hoof thoroughly with acetone before applying this product.  Do not use any oils or greases while using this product. 

Helpful hint: Pour from the bottle into the cap and work out of it to avoid getting dirt back in the bottle or spilling it.

Downloadable Resources
MSDS SheetManufacturer Information

Product Reviews by Customers

Rated 5 out of 5 by 3 reviewers.
Rated 5 out of 5 by Good Product Worked hardening the soles of mare who had shoes just taken off. Usually foot sore & even can't go w/o shoes March 27, 2013
Rated 5 out of 5 by Pricey but worth it Our horse was newly barefoot and very ouchy on gravel or little random stones for a couple of weeks, with no improvement. I ordered Keratex, and after the second use, no more ouchy. He has never appeared sore since. Amazing stuff! June 20, 2011
Rated 5 out of 5 by Good Stuff This is one of the few products recommended by my farrier and he really knows his profession. This Keratex is considered top of the line. It has helped save my horses hooves. June 10, 2011
  • 2015-11-28 T10:33:00.465-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_3, tr_3
  • loc_en_US, sid_E001506, stg, sort_default
1-3 of 3
Browse 4 questions and 39 answers
Hide answersShow all answers | Sort by
Why did you choose this? Store
Highly recommended by my farrier.
TANCY G on Aug 30, 2015
Awesome product that my farrier suggested several years ago. It's the only product I use on all my horses feet since and works really well for wet weather to dry if you need to toughen up their feet and correct issues. One product that is well worth the costs, but even better when on sale!
JANYCE P on Aug 11, 2015
this product is awesome. My gelding had white line disease when i purchased him and after using one bottle of Keratex and farrier care his hoofs are in great shape.
Mary Anne G on Aug 29, 2015
I have seen less chips and cracks on both my horses. I use the product every other day. It lasts a long time providing the hoof is clean and you use frugally. Don't "slop" it on as you are wasting the product.
BRENDAN F on Jul 31, 2015
FRANK G on Aug 24, 2015
Best Answer: Contact Keratex directly regarding MSDS on their Hoof Hardener.
I called them today and left a message to advise asap, or respond directly thru Horse dot com regarding their MSDS as I could not find anywhere on their website for USA. I personally use their Hoof Hardener and find it works really well for hoof and sole issues.
Hope this helps, but if you do not receive an answer soon I would ask Horse dot com to inquire directly with Keratex as well.
Reply · Report · JANYCE P on Aug 24, 2015
· Add Answer · I Have This Question Too (1)
how do you apply this keratex?
Ruben r on Jul 5, 2015
Best Answer: It comes with a small brush, so you paint it on. It helps to have another person hold the horses foot. Also, a way to conserve the product and keep it clean: pour just what you need into the cap (a small amt -- it goes a long way). Then rinse the cap before closing up the bottle.
This was recommended to us after our horse had hoof surgery at Rood and Riddle in Lexington, KY;; a world-renowned podiatry clinic included. We continue using it as a precautionary measure, as we get a lot of rain in TN.
Reply · Report · ELOISE S on Jul 5, 2015
· Add Answer · I Have This Question Too (0)
my horses hoof cracked unto top. can we use this medicine?
suresh on Jul 10, 2014
Best Answer: I would try calling Rood and Riddle Veterinary Hospital Podiatry Dept. in Lexington, KY. My horse had surgery that extended at least halfway up the hoof, and they recommended Keratex. Have been using it as a preventive measure post-surgery for two years with excellent results.
Reply · Report · ELOISE S on Jul 12, 2014
· Add Answer · I Have This Question Too (0)