Skip to content
PLEASE NOTE: You may experience errors on our site when using Internet Explorer. Please consider updating your browser, or download Google Chrome.

Pure Lysine

1. Packaging/Size
2. Customization & Shipping Frequency
You'll love our AutoShip because it's:
  • Focused on healthy s, because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save % on every shipment if you order this product on AutoShip PLUS! You'll save % on every shipment if you order this product on AutoShip
We're bringing you this product at the lowest price allowed by the manufacturer so you won't find it cheaper anywhere else. This also means we can't apply any further discounts or promotions.
28 day supply
day supply
These are for:
Sign in to choose an existing

Choose AutoShip to become eligible to apply for the FREE Colicare Program after checkout.

  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
-
+

FINAL SALE - This item cannot be returned or exchanged.

FINAL SALE - This item cannot be returned or exchanged.

Order within and
have it by
Shipping to
Add these items to your cart to get your estimated arrival date.
Shipping to
(AutoShip discount will be reflected in your cart)
28 day supply
day supply
These are for:
Sign in to choose an existing
These are for:
Sign in to choose an existing
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.
( Cups / Meal)

You're eligible to apply for our FREE ColiCare Program after checkout.

  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
Please call 1-800-461-8898 to order this product.
New ship same day!
These are for:
Sign in to choose an existing
  • This horse already has an existing AutoShip SmartPak. Please select the "AutoShip" checkbox or enter a different horse name.
-
+

FINAL SALE - This item cannot be returned or exchanged.

FINAL SALE - This item cannot be returned or exchanged.

Order within and
have it by
Shipping to
Add these items to your cart to get your estimated arrival date.
Shipping to
The frequency you selected is not eligible for SmartPerks benefits that come with AutoShip supplement orders. In order to get benefits like free shipping and 10% off, set this product to ship at least every days. What are SmartPerks?

Overview

Economical form of lysine

  • 9,099 mg of pure lysine
  • Lysine must be provided in your horse's diet because the body cannot make it on its own
Lysine is the protein component most often lacking in horses' diets. Pure Lysine provides a pure and economical form of this nutrient.

Learn More about Pure Lysine


Other ways to support success

100% Happiness Guarantee
At SmartPak, your happiness is at the core of everything we do. We put our products to the test in our barns and on our horses, and back every order with our world-class customer service so that you can shop with confidence. As part of our Happiness Guarantee, we promise you:
  • Expert advice from riders
  • Free shipping every day
  • Free return shipping on sized items
  • Hassle-free returns up to 365 days after purchase

Ingredients

(Maintenance Dose = )
Ingredient Amount
  • Ingredient Per Serving Per Pound

How the Ingredients Work

    •  
    •  
    •  

Instructions

Instructions for Use:
Horse Weight Recommended Amount Loading Amount

Research

Reviews

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.

Pure Lysine is rated 4.6 out of 5 by 104.
Rated 4 out of 5 by from One horse ate, one horse hated Bought to supplement lysine levels in another supplement. One horse ate it just fine, the other refused to eat the grain it was in.
Date published: 2020-10-26
Rated 4 out of 5 by from Hoping to see improved muscle It will take a while I'm sure, but i'm hoping the Lysine will increase muscle and support the immune system on my 30 year old gelding. Hope to report back with good news.
Date published: 2018-12-13
Rated 5 out of 5 by from Steady muscle increase I bought this about a month ago. I have a young Friesian Cross who was really tight and had a problem with muscle development. Since starting this supplement he has been less sore and I've seen improvement in his top line development.
Date published: 2018-02-22
Rated 5 out of 5 by from Visual difference in weeks! My thoroughbred really needed the extra help that this supplement provided to build the muscle in her hind and topline. She hated the taste, but she is a very picky horse in general (hates apples and peppermints, etc.). All I had to do was add a little water into her grain and other smartpak supplements so that it stuck to her grain. The product itself made a huge difference within two weeks. Her hind end is rounder and her topline has filled out more. This, along with an appropriate amount of hay, grain, and consistent work has made her very muscly. Love it!
Date published: 2017-08-31
Rated 4 out of 5 by from Mini horses I use this product on my 2 mini horses to help with shedding and coat luster.
Date published: 2017-07-21
Rated 5 out of 5 by from Pure Lysine My horse has been on this product for the past 8 months because he had scratched his eye and also had a small eyelid bump or blemish of unknown origin. I chose not to do a biopsy so close to his eye, and have been trying this product to see if it made any difference. The blemish is reduced to half its size and the scratch has not scarred or left any residual damage to his eye. I am very pleased with this supplement for eye health and will continue using it. One small scoop on his grain daily and it is very affordable as well!
Date published: 2017-07-20
Rated 5 out of 5 by from After a hard day's work he is not as sore as he used to.
Date published: 2016-09-26
Rated 5 out of 5 by from Just what the doctor ordered! The chiropractor who treats my Appaloosa recommended L-lysine to help support his healing muscles. One call to Smartpac & it was on the way! Thank you!
Date published: 2016-07-18
Rated 4 out of 5 by from I started my horse on this a month or so ago after my horse was still lagging behind on muscling up after a bit of weight loss over the winter due to aging hay. We've noticed an improved top line already.
Date published: 2016-06-25
Rated 5 out of 5 by from Great product I have been using this product forever and have had good result with it.
Date published: 2016-06-04
  • y_2021, m_4, d_17, h_17
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.14
  • cp_1, bvpage1
  • co_hasreviews, tv_13, tr_91
  • loc_en_US, sid_1711, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_smartpak
  • bvseo_sdk, net_sdk, 3.2.0.0
  • CLOUD, getContent, 31ms
  • REVIEWS, PRODUCT

Q&A

Videos

Vita Flex« - The Fine Line Between Good and Great
Vita Flex, a leading manufacturer of high quality, veterinary-developed supplements for competitive horses, shows just how thin the line is between success and failure, good and great, winning or losing. Cross your fine line by visiting http://www.vitaflex.com
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.
View all

Recently Viewed View all

Customers Also Shopped For
Cavalor® Muscle Fit is a supplement designed to ...
Description:
Cavalor® Muscle Fit is a supplement designed to aid in healthy muscle function and recovery in hard-working horses. It provides high quality protein in the form of whey protein isolate, along with amino acids, for healthy muscle development. It also ...
Cavalor® Muscle Force helps to support healthy muscle ...
Description:
Cavalor® Muscle Force helps to support healthy muscle growth in horses and features a multi-pronged approach to muscle development. First, it provides both high-quality protein sources and bioavailable amino acids to support the normal development of lean muscle. It also ...
Cool Calories 100 is a concentrated energy supplement ...
Description:
Cool Calories 100 is a concentrated energy supplement suitable for all types of horses. Cool Calories 100 will provide essential fatty acids for skin and hair condition, as well as calories for weight gain and exercise performance. Cool Calories 100 ...
Cool Omega 40+ provides a unique blend of ...
Description:
Cool Omega 40+ provides a unique blend of fat and proteins for today’s active horses. Perfect for supporting a healthy weight without the negative impacts that come with increasing your horse’s serving of grain, these pellets are easy-to-use and highly ...
dac® Bloom is a fat, vitamin, and mineral ...
Description:
dac® Bloom is a fat, vitamin, and mineral supplement designed for all classes of horses. It’s designed to support overall skin and coat health as well as a normal body condition, making it especially beneficial for hard keepers or senior ...
dac® Oil supports resilient skin and a shiny ...
Description:
dac® Oil supports resilient skin and a shiny coat, and provides additional calories for healthy weight gain. The balanced blend of oils that make up this formula include canola oil, flaxseed oil, wheat germ oil, fish oil, and rice oil. ...
IN-SYNC 4 Pellets are designed to help support ...
Description:
IN-SYNC 4 Pellets are designed to help support efficient muscle function, immune system health, and normal blood cell production. The comprehensive formula includes lysine and methionine for muscle development; thiamine, niacin, riboflavin, and vitamin B12 for red blood cell production; ...

Qualifying Items

Qualifying items are eligible for free shipping, every day. Look for the badge below on the product page to confirm that your item ships free!
SmartPerks
Free Shipping

Ride Along Items

Ride Along items are eligible for free shipping when shipped with your next AutoShip order or any qualifying item. Look for the badge below to identify a Ride Along item.
Ride Along Item
Ships free with a qualifying item
All of our supplement and product expertise is just a text away. Ask questions, manage your account, and place orders by texting 26756 from your mobile phone. Have a great ride!

Our experts are available
Monday – Thursday 9:00 am – 5:00 pm EST
Friday 9:00 am – 3:00 pm EST

*By texting 26756, you're giving SmartPak your consent to text you to help resolve your issue, including automated replies, at the number you provided. To opt out, text STOP to 26756. Text HELP to 26756 for info. Msg&rates may apply. Consent to receive texts not required to buy products. Terms & conditions and the full Text Message Privacy Policy can be found at https://www.smartpakequine.com/content/2waytextTC in case you're interested.