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SOURCE (#10093)


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Feeding Chart

Daily Serving

Dog Weight - lbs Inactive Dog Active Dog Working Dog
Inactive Dog - Less than 30 minutes of vigorous exercise daily
Active Dog - At least 30 minutes of vigorous exercise daily
Working Dog - More than two hours of vigorous exercise daily
This is only a guide. Please consult your veterinarian to determine the perfect feeding amount for your dog.
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Product Overview

The ultimate micronutrient supplement

SOURCE is an extremely broad-spectrum horse supplement with at least 60 elements and their associated micronutrient compounds in a biologically active form. SOURCE contains small amounts of naturally occurring vitamins, including the 14 currently recognized "essential trace elements" and the 21 trace elements now under special consideration with respect to essentiality, plus other unidentified associative factors whose role in nutrition has not yet been established.

SOURCE contains a proprietary blend of pure dehydrated seaweed meals...and nothing else! All-natural, concentrated herbs of the ocean.

  • A unique proprietary blend of pure dehydrated seaweed meals
  • Includes at least 60 elements and their associated micronutrient compounds

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Key Ingredients


Supplement Facts

Ingredient Name Amount Per Serving
Ingredient Name Amount Per Pound

Ingredient Details


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How the Ingredients Work

Supporting Success

Supercharge Your Supplements

  • Simplify with SmartPaks | Consistent, Custom, Convenient
    We take the guesswork out of serving sizes, ensuring your horse gets the right amount, every time. SmartPaks have airtight seals to ensure that your horse always has the freshest supplements available. Your horse is unique and his supplements should be too. Choose from over 230 supplements to get everything he needs, nothing he doesn't. We print your horse's name on every Pak so there are no mix-ups, making feeding time fast, accurate and easy! Unlike most buckets, SmartPaks are made from recycled plastic and can be recycled again! We'll send your SmartPaks on time so you never run out, with total flexibility and no commitment. Plus all SmartPaks over $40 receive free ground shipping.


The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

SOURCE is rated 4.8 out of 5 by 146.
Rated 5 out of 5 by from One of the Best All-Around Products Out There I've used source with my OTTB for the past 7 years and it is an excellent product. There have been a few instances in which my horse has been off of Source for a couple of months at a time and I can certainly tell a difference. On Source his hoof quality is better, he has more hoof growth, his coat is shinier and more true to color and he maintains better body condition. Having a TB that is a bit of a hard keeper it is clear to me that he maintains his weight much more easily while on Source. I would recommend this product as an inexpensive way to help your horse maintain optimum hoof and body condition!
Date published: 2013-10-12
Rated 5 out of 5 by from Source vitamins for your horse Our 5 horses do not have access to pasture so we want to be sure they are getting all the vitamins they need. Source is a fairly inexpensive way to do so.
Date published: 2013-04-09
Rated 5 out of 5 by from Good Stuff! My Mare needs kelp to keep her thyroid level and I use Source instead of plain granulated kelp, which I used before, as the Source has a lot more in it. So far it has worked.
Date published: 2013-03-20
Rated 5 out of 5 by from Trusted product I have used Source for my horses in the past. In recent years my hay has come from the same farmer and has been very high quality alfalfa mix. Given this year's poor hay growing conditions and the change from alfalfa mix (unavailable) to grass hay (I was plenty glad to get it) I added source back to their diet. I trust this product.
Date published: 2012-12-26
Rated 5 out of 5 by from Great supplement Love Source! Makes me mare's coat shiny and dark and helps with her fly problem!!!
Date published: 2012-10-06
Rated 5 out of 5 by from Great product I don't know why I didn't try this product sooner. I had been using the industry standard for my horse's hooves and wasn't really seeing much of a result. My farrier had great things to say about this product, so i decided to give it a try. My horse's hooves are stronger, his coat is brilliant. Overall amazing product, a simple solution for a variety of coat and skin conditions, or an all inclusive dietary supplement.
Date published: 2012-09-28
Rated 2 out of 5 by from Not What I expected I had heard and read raving reviews for Source. All about how it improved horses health and overall general appearance. I had both my horses on it for 2-3 months and never noticed a difference. Most supplements you can see differences within 2 months, but not with this and the palatibility was poor, had to wet my horse's feed down in order for them to eat it. I am going to try Vita Plus instead. :(
Date published: 2012-08-26
Rated 5 out of 5 by from Excellent product I always use Source on all my horses, all ages, all breeds, performance horses or not. Seems like they always have nice coats, good feet and excellent energy levels.
Date published: 2012-08-03
Rated 4 out of 5 by from Extremely Helpful!! For about six months, I had been unhappy with my horse's coat, and after doing some natural health research, came across SOURCE and decided to try it... My Quarab mare's spring coat came in with a dazzling sheen and I have never seen her look this good... wow!! I switched over to the pellets with my last shipment since I can't add powder to her pelleted feed, she won't touch it, but the product is great if you can get it into their system :D
Date published: 2012-06-16
Rated 5 out of 5 by from Good Product A year a ago I decided to take my 10 YO TB M off of grain and to pull her shoes. As soon as I pulled her shoes, she was foot sore/lame. I started her on MVP multi vite, Source and Grand Hoof. A year later she goes for trail rides through the rocky northern Rhode Island woods, walks on pavement barefoot, and the vet said that her feet are "rock hard". Her feet are now a dark ebony color,. She is not crazy about the taste of Source, she made the flip lip up face the first time I gave it to her, I have since changed to Source Focus HF, so she can get her hoof stuff and source in one shot.
Date published: 2012-05-01
Rated 5 out of 5 by from Love I absolutely love this product my horse is much more bright eyed, the new coat that is coming in is very shiny and healthy looking, it made a big difference for his skin, its no longer flaky and itchy and his hair grows much faster. He has no problem eating it, well he never was a picky eater, I'm definitely recommending this product to anyone who hasn't tried it yet.
Date published: 2012-04-17
Rated 5 out of 5 by from Great buy! I have all three of my horses on this after I read that abcesses can be linked to low levels of iodine. Last winter I had one horse who had 6 weeks off due to an abcess. This year they are all fine. It may be the source and it may not but its a great product and cant hurt.
Date published: 2012-03-16
Rated 4 out of 5 by from Healthier Horses! We noticed our ASB getting somewhat dull and had some white-hairs popping up. Some people said it could be from a copper deficiency, but whatever it was that he was not getting from the pasture and his grain, he got from Source! His white hairs were gone, and his coat gleamed better than ever. My friend started using it on her pasture-pet horses with bad hooves and their hooves started getting noticeably stronger, and healthier looking. This is a great all-around supplement! Not for picky eaters though!!
Date published: 2012-02-18
Rated 5 out of 5 by from Used for over 20 years LOVE Source!! I have used this product since I was in single digits. WHere I used to take lessons as a child, they had their horses on it. I went to another place for lesson, they used. Ever horse I have owned, every customer I have had, I put on Source. It equals out the vitamins that are missed by the hay/grass/grain. Health coat, health mane/tail, gleam in the hrose's eye. I can NOT say enough about this product
Date published: 2012-01-04
Rated 5 out of 5 by from Seemed like a good idea My Pinto got a nasty sunburn this past summer and so I went to the web for an person mentioned that their horse's tendency to sunburn went away when she started using Source. So, I decided to try it. He has not sunburned again but I also purchased a fly sheet with a neck cover and he has now grown in his winter seems to have helped create a more luxurious coat than he had last year, which was the first winter I had him. I also give him flax or coconut supplements so they could be helping the coat to. At any rate it's not expensive so I'll keep him on it and see what happens next summer.
Date published: 2011-12-18
Rated 5 out of 5 by from So far so good My gelding has been on Source for two shipments. I haven't noticed a huge difference yet. I heard that Source is very effective on hoof quality, but I haven't seen notable results yet. I like that he's getting all of the micronutrient's in a palatable, easily fed manner. I have high hopes for this product.
Date published: 2011-11-20
Rated 5 out of 5 by from AMAZING product My mare came back to us from a lease with her coat bleached and her skin broken out from her severe fly allergy (as she had been left uncovered). I was heartbroken to see her in such condition. I added Source and within days everything began to clear up and within 2 weeks she was pretty much back to normal. It's a wonder supplement. And at such an affordable price, you can't afford NOT to add it to your supplement plan. LOVE it.
Date published: 2011-11-15
Rated 5 out of 5 by from Great stuff! One of my horses seems to have a problem with sores developing on his front fetlocks every year in the fall and winter. I don't know what causes it, but everything I've tried to heal them up seems to work at first, then the sores come back - same place every time. If I use the same product to heal them up again, it doesn't work - I have to use something else. The sores came back again this year and I started feeding Original Source along with using stuff directly on the sores. They healed up and I quit using stuff on the sores. They are still healed up so far! I hope this trend continues! Time will tell if Source does the trick for him in keeping these sores from coming back at all. He eats it right up - as well as one of my mares. However, my other mare has decided that she will not eat any more powder at all. Not even the powder that forms from handling her pelleted feed that she loves! So, I've switched to the Source pellets instead - she eats those without any problem at all.
Date published: 2011-10-22
Rated 5 out of 5 by from Great Product!! I would Deffinately recommend this to anyone who wants a basic supplement. Puts a gleem on their coats and they seem more alert and bright eyed. Deffinately a great product
Date published: 2011-10-13
Rated 5 out of 5 by from I would not reccomend the powder form of these vitamins to a picky eater. I love the SOURCE micronuggets!!!
Date published: 2011-09-14
Rated 5 out of 5 by from Great product I've been using Source for years, really makes a difference in my horse's coat, feet, and overall health.
Date published: 2011-09-07
Rated 5 out of 5 by from SOURCE I got this for my 22 year old QH who was just not looking as good as I would have liked. He grew a very long winter coat last year and would not shed out completely. In June he still had long hair on his neck and legs. I added SOURCE in July and within two weeks he was shedding like crazy. He has now lost almost all of the long, nasty hair, is shiny again and beginning to get dapples on his back and barrel. He has some nice, new hoof growth and his crusty, watery eye crud has improved. Overall, he looks like a new horse. I'm very impressed with the results of this product. Adding SOURCE to my horse's smartpak is the only change I have made, so I can only attribute his improvement to adding this. I will definately keep him on SOURCE after seeing the improvement in his condition and I'm starting my younger horse on it as well. The reasonable price is a nice added bonus, too!
Date published: 2011-08-22
Rated 5 out of 5 by from Source - my favorite supplement Ive fed source to numerous hunter/jumpers and AQHA all-around horses over the past 15 years. Within 6 weeks their coats completely dapple out and Im always complemented on how shiny my horses are. Ive also luckily never had a horse colic on me. I really believe adding kelp to the diet (including mine) helps horse and human be healthy from the inside out. I like to combine it with pro-biotics as way of keeping everything running at optimum internal performance especially for horses exposed to stressful training or showing conditions. Ive never had a horse refuse to eat Source when top dressed on their daily feed.
Date published: 2011-08-03
Rated 5 out of 5 by from TB lloks great! I started giving my TB source and Grand Hoof to improve her poor feet. She has only been on these sups for a few weeks, so no real change in her feet. However her coat is amazing! Her color is more intense, even her white socks seem whiter, and her coat is shiney and soft
Date published: 2011-07-11
Rated 5 out of 5 by from Best Supplement I have used Source for more than 25 years on all types of horses.The overall health of the animal can easily be seen in the coat, hooves and the lack of vet bills. It genuinely makes a difference.
Date published: 2011-07-07
Rated 5 out of 5 by from Great Product I have 6 horses (including a mini) on source. All are in blooming health with shining coats and I have noticed the manure is no longer being picked through by the birds. It really is an economical supplement that affords confidence that my horses are getting those extra nutrients.
Date published: 2011-07-06
Rated 5 out of 5 by from Best Supplement for General Health I've used Source for my horses for over 30 years now. It helps grown strong hooves, and it does lend a shine to their coats, although it is not a coat supplement. I can tell a difference if I run out of Source and they are off of it for a few weeks. I've tried one or two other supplements at one time or another, and nothing impresses me as much as Source.
Date published: 2011-06-09
Rated 3 out of 5 by from Probably good ingredients if they will eat it. Only 1 of my 4 horses would eat it and he will eat anything. Its a very fine powder which didn't work well for feeding outside horses. Other than that - it may be a very good product nutritionally - it sounded good. I just couldn't get them to eat it.
Date published: 2011-05-31
Rated 5 out of 5 by from Great product I have been using source for many years. Was recommended by my vet in California. Some horses are challenged by the taste, but they get used to it.
Date published: 2011-05-25
Rated 5 out of 5 by from Positive Results My OTTB has been on Source for 2 yrs. I adopted him right off the track and he has gone through many lifestyle transitions in our time together. I immediately supplemented with Source upon adoption. Through it all he has transitioned like the champion he is and I believe Source has been a major component. He has a beautiful coat, healthy bare feet, winning temperament and sparkling eyes. I would say it is a great addition to a balanced diet for a horse.
Date published: 2011-05-06
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