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FOCUS HF (Hoof) provides specialized nutritional support for horses with poor hoof condition

Got a horse with poor hoof condition and need a nutrient builder for hoof strength?

Reviewed by Ann Pruitt, InfoHorse.com · Updated May 2026

FOCUS HF Hoof supplement by SOURCE Inc open container of pelleted equine hoof micronutrient

4Source.com

"Focus HF"(Hoof) by Source, INC.
Focus HF (Hoof) provides specialized nutritional support for horses with poor hoof condition, for superior hoof growth, texture, and strength.

Focus HF (Hoof) ... Has What's Missing From Any Other Hoof Product!
A sound hoof is the necessary foundation for an active horse and requires a wide range of nutrients for optimum strength and resilience.

Focus HF provides not only key nutrient building blocks such as biotin, methionine, lysine, chelated trace minerals (including zinc and copper), viable yeast culture and lecithin phospholipids . . .
. . . it includes the legendary Source® micronutrients to make it all work!

Hooves are composed of living tissue that require a wide range of nutrients to grow strong, resilient and hard. A deficiency of any of these key nutrients may lead to weak, crumbly hoof walls that grow slowly and won't hold horseshoe nails. Focus HF provides the horse with a unique broad spectrum of micronutrients from Source. These nutrients include at least 60 minerals and trace elements in an organic, highly bioavailable form. In addition, seaweeds contain other natural bio-active compounds and co-factors which may be missing from your horse's diet. These micronutrients are synergistic with all the other ingredients in Focus HF and will help to increase their effectiveness.

Feeding Instructions

Provide good quality hay and grain, with protein and carbohydrate levels appropriate for the age and demands of the horse; a balanced calcium / phosphorus ratio, an effective parasite control program, fresh water at all times, free access to salt, a good dental care program Feed Focus HF everyday, including race and competition days. Mix one level measure (included in the container) ( 1.5 oz.)(42 gr.) of Focus HF with feed per day. Amount based on 1,000 lb. (450 kg) body weight. Adjust accordingly. Do not exceed recommended feeding levels.

The Source Guarantee

We want every person to have the opportunity to see for themselves the effectiveness of the Source micronutrients found in all of our products. If you are not satisfied with any of the products for any reason, your money will be refunded in full - no strings attached. (Simply enclose proof of purchase.)

What Makes Our Company Different?

More than two decades ago Source president and founder, Susan Domizi was competing on her eventing horse, Hull, with hopes of being on the US Equestrian Olympic Team. "My horse [Hull] had hoof problems and couldn't maintain his body weight. He received the finest feeding program and veterinary care available. I suspected a nutrient deficiency and set out to find something to help him." She found a great deal of Norwegian and Japanese research on seaweeds that scientists and agriculturists here had been able to duplicate. In addition to using information learned while earning a degree from Columbia University in New York, she studied all available data to determine what the American studies had missed. She used this information as a starting point for developing other approaches..

By trying different kinds of seaweeds, different blends, different methods of processing and constantly analyzing the findings she came up with a finely ground, dry mixture that she put in her horse's food. Her horse began to thrive.

And that was the first serving of the product that was later to become Source

Focus HF Sounds Great! How Do I Order?

Focus HF is available for your horse in a convenient 3.5 lb. size, which will last one horse for 37 days. It is also available in an economical bulk easy-open 25 lb. size (lasts one horse for 8 months) Source products are widely available at your local feed and tack stores, through online catalogs or web stores, or directly from Source-- just visit our Shop area at 4Source.com for a complete listing.

Focus HF (Hoof) provides specialized nutritional support for horses with poor hoof condition, for

Who makes Focus HF (Hoof)?

Focus HF is produced by Source, INC. (Source micronutrients LLC) of 101 Fowler Road, N. Branford, CT 06471, the self-described "Pioneer in Micronutrient Supplementation." Founded by president Susan Domizi, the company has concentrated nutrient-rich ocean seaweeds into equine supplements since 1975. Source is a founding member of the National Animal Supplement Council (NASC) and is audited and certified to display the NASC Quality Seal. You can reach the company toll-free at (800) 232-2365 or locally at (203) 488-6400, or.

SOURCE FOCUS HF Hoof horse supplement product labels showing guaranteed analysis and feeding directions — Source Focus HF Hoof horse supplement product labels showing guaranteed analysis and feeding directions

What goes into Focus HF, and what is left out?
The formula blends dehydrated seaweed meals and dehydrated alfalfa meal with corn distillers dried grains, DL-methionine, L-lysine, lecithin, zinc methionine complex, zinc proteinate, copper proteinate, biotin, yeast culture, and natural flavoring. Source states its products contain no artificial colors or flavoring, no preservatives, no synthetics, and no drugs. The signature ingredient is the Source seaweed base, which the company says delivers roughly 60 minerals and trace elements in a biologically active, plant-derived form.

SOURCE FOCUS HF Hoof 25 lb sealed tub equine hoof health supplement — Source Focus HF Hoof 25 lb sealed tub equine hoof health supplement

How the Source micronutrients make the difference

A hoof is living tissue that needs far more than one or two isolated nutrients to grow strong. Source argues that mega-dosing a single nutrient such as biotin is unnecessary when a horse is given a complete, balanced spectrum of trace minerals working together. Focus HF therefore pairs proven hoof-building blocks — biotin, methionine, lysine, and chelated zinc and copper — with "the legendary Source® micronutrients to make it all work," so the named nutrients are supported by the broad trace-element profile that seaweed provides.

SOURCE FOCUS HF Hoof 3.5 lb container of seaweed-based hoof supplement for horses — Source Focus HF Hoof 3.5 lb container of seaweed-based hoof supplement for horses

Guaranteed analysis you can read on the label

Each 1.5 oz (42 gram) measure delivers 10 mg biotin, 225 mg zinc, 79 mg copper, 9 mg iodine, and 2 billion yeast-culture cells, alongside guaranteed minimums of 20% crude protein, 7.4% methionine, 3.8% L-lysine, and 6% crude fat. These figures put the building blocks of hoof keratin and the chelated trace minerals into the diet at levels the company has tuned for a 1,000 lb horse. The transparency of the printed analysis lets owners compare Focus HF directly against other hoof supplements.

Who should feed it, and how
Focus HF is built for horses with poor hoof condition — cracking, slow growth, weak walls, or soft, crumbly texture. Feed one level measure (1.5 oz) mixed with grain daily for a 1,000 lb horse, adjusting for body weight, and continue every day including race and competition days. Source notes the supplement works best as part of sound overall care: quality hay and grain, a balanced calcium-to-phosphorus ratio, parasite control, fresh water, free-choice salt, and regular dental attention.

Sizes, pricing, and the no-time-limit guarantee
Focus HF is sold in a 3.5 lb container at $37.23 (about a 37-day supply for one horse) and a 25 lb tub at $212.02 (roughly an 8-month supply). Both are made in the USA. Source backs the product with a full refund if you are not satisfied, with no time limit on the guarantee when accompanied by proof of purchase. Order direct at www.4source.com or call (800) 232-2365.

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The Solution Section (FAQ)

What is FOCUS HF and what does it do for a horse's hooves?

FOCUS HF (Hoof) is a nutritional supplement from 4Source.com that provides specialized support for horses with poor hoof condition, targeting superior hoof growth, texture, and strength. A sound hoof is the foundation for an active horse and needs a wide range of nutrients to grow strong, resilient, and hard.

What ingredients are in FOCUS HF?

FOCUS HF delivers key building blocks including biotin, methionine, lysine, chelated trace minerals (such as zinc and copper), viable yeast culture, and lecithin phospholipids. It also includes the SOURCE® micronutrients, which add at least 60 minerals and trace elements in an organic, highly bioavailable form from seaweed.

Why do weak, crumbly hooves happen, and how does FOCUS HF address it?

Hooves are living tissue, and a deficiency in key nutrients can lead to weak, crumbly hoof walls that grow slowly and won't hold horseshoe nails. FOCUS HF provides a broad spectrum of micronutrients, including bio-active compounds from seaweed that may be missing from a horse's diet, working synergistically to support strong, resilient hoof growth.

How much FOCUS HF do I feed my horse?

Mix one level measure (included in the container), which is 1.5 oz (42 gr), with feed per day. The amount is based on a 1,000 lb (450 kg) body weight, so adjust accordingly, and do not exceed recommended feeding levels. Feed FOCUS HF every day, including race and competition days.

What sizes does FOCUS HF come in and how long does each last?

FOCUS HF is available in a convenient 3.5 lb size, which lasts one horse for 37 days. It also comes in an economical, easy-open 25 lb bulk size that lasts one horse for 8 months.

Is there a guarantee if FOCUS HF doesn't work for my horse?

Yes. SOURCE® backs its products with The Source Guarantee: if you are not satisfied with any product for any reason, your money will be refunded in full with no strings attached. Simply enclose proof of purchase.

What makes SOURCE different from other supplement companies?

More than two decades ago, SOURCE® president and founder Susan Domizi developed the product after her eventing horse, Hull, struggled with hoof problems and maintaining body weight despite the finest feeding and veterinary care. She studied Norwegian and Japanese seaweed research and refined a finely ground dry mixture that became SOURCE®, which her horse began to thrive on.

How can I order FOCUS HF or ask 4Source.com a question?

SOURCE® products are widely available at local feed and tack stores, through online catalogs, or directly from the company. To order or get help choosing the right product for your horse, call 4Source.com at 800-232-2365 or email [email protected].

What is FOCUS HF (Hoof)?

FOCUS HF (Hoof) is a daily nutritional supplement from SOURCE, INC. designed to support horses with poor hoof condition. It combines proven hoof-building nutrients such as biotin, methionine, lysine, and chelated zinc and copper with the SOURCE seaweed micronutrient base. The goal is superior hoof growth, texture, and strength.

Who makes FOCUS HF?

It is made by SOURCE, INC. (SOURCE micronutrients LLC), based at 101 Fowler Road, N. Branford, CT 06471. The company, founded by president Susan Domizi, has concentrated nutrient-rich ocean seaweeds into supplements since 1975 and calls itself the Pioneer in Micronutrient Supplementation.

What are the main ingredients in FOCUS HF?

The formula contains dehydrated seaweed meals, dehydrated alfalfa meal, corn distillers dried grains with solubles, DL-methionine, L-lysine, lecithin, zinc methionine complex, zinc proteinate, copper proteinate, biotin, yeast culture, and natural flavoring. The seaweed base is the signature element, supplying roughly 60 minerals and trace elements in a biologically active form.

How much biotin is in each serving?

Each 1.5 oz (42 gram) measure of FOCUS HF provides 10 mg of biotin. SOURCE pairs that biotin with chelated zinc and copper, methionine, and lysine rather than relying on a single mega-dosed nutrient, on the philosophy that hoof tissue needs a balanced spectrum of nutrients to grow strong.

What is the guaranteed analysis per serving?

Per 1.5 oz serving, FOCUS HF guarantees 20% crude protein, 7.4% methionine, 3.8% L-lysine, and 6% crude fat, plus 10 mg biotin, 225 mg zinc, 79 mg copper, 9 mg iodine, and 2 billion yeast-culture cells. These minimums are printed on the label so owners can compare it directly against other hoof products.

How do I feed FOCUS HF?

Feed one level measure (1.5 oz / 42 grams) mixed with the horse's grain once daily for a 1,000 lb horse, adjusting up or down for body weight. SOURCE recommends feeding it every day, including race and competition days, for consistent results.

How long does it take to see results?

Because the hoof grows slowly, hoof supplements generally take several months to show visible change as new, healthier horn grows down from the coronary band. Feeding FOCUS HF consistently every day is important so the nutrients are continuously available while the new hoof forms. Most owners evaluate progress over a full growth cycle.

What sizes does FOCUS HF come in, and what do they cost?

FOCUS HF is offered in a 3.5 lb container priced at $37.23, which lasts about 37 days for one horse, and a 25 lb tub priced at $212.02, which lasts roughly 8 months for one horse. Both can be ordered directly from www.4source.com.

Is there a satisfaction guarantee?

Yes. SOURCE offers a full refund if you are not satisfied with FOCUS HF, and the guarantee carries no time limit. A refund request must be accompanied by proof of purchase.

What makes FOCUS HF different from other hoof supplements?

The difference is the SOURCE seaweed micronutrient base, which the company says is 'often imitated, never duplicated' and delivers about 60 trace elements in a biologically active form. Rather than mega-dosing one nutrient like biotin, FOCUS HF supplies a balanced spectrum so the named hoof nutrients work together. SOURCE describes it as adding 'the legendary SOURCE® micronutrients to make it all work.'

Are the SOURCE micronutrients natural?

Yes. The micronutrients are concentrated from nutrient-rich ocean seaweeds, and SOURCE states its products contain no artificial colors or flavoring, no preservatives, no synthetics, and no drugs. The company has been sustainably harvesting and blending select cold-water seaweed varieties since 1975.

Is FOCUS HF made in the USA?

Yes, FOCUS HF is made in the USA. SOURCE, INC. is based in N. Branford, Connecticut, and is a founding member of the National Animal Supplement Council (NASC), audited and certified to display the NASC Quality Seal.

What does the SOURCE seaweed base actually do for hooves?

A hoof is living tissue that requires a wide range of nutrients to build strong keratin and grow at a healthy rate. The seaweed base supplies roughly 60 minerals and trace elements in a bioavailable form, which SOURCE says lets the targeted ingredients — biotin, methionine, lysine, zinc, and copper — perform better as a coordinated system rather than in isolation.

Can I feed FOCUS HF on competition days?

Yes. SOURCE specifically advises feeding FOCUS HF daily, including race and competition days, because it is a whole-food-style nutritional supplement containing no drugs, synthetics, or prohibited substances. Continuous daily feeding keeps the hoof-building nutrients consistently available.

Does my horse still need good hoof care and a balanced diet?

Yes. SOURCE notes FOCUS HF works best alongside sound overall management: good quality hay and grain, a balanced calcium-to-phosphorus ratio, parasite control, constant fresh water, free-choice salt, and regular dental and farrier care. The supplement fills nutritional gaps but does not replace good husbandry.

Does FOCUS HF help anything besides hooves?

While FOCUS HF is formulated specifically for hoof growth, texture, and strength, the broad seaweed micronutrient base and ingredients like zinc, copper, and biotin are commonly associated with skin and coat health as well. SOURCE markets the seaweed base across its line as support for all-around condition, with FOCUS HF being the hoof-targeted formulation.

How do I order FOCUS HF or contact SOURCE?

You can order FOCUS HF directly at www.4source.com or by calling SOURCE toll-free at (800) 232-2365, or locally at (203) 488-6400. The company is reachable by email at [email protected], Monday through Friday, 9 am to 5 pm Eastern, and is located at 101 Fowler Road, N. Branford, CT 06471 USA.