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Cosmo's Signature Bison Liver
4.9
Over 10,000 Happy Dogs
Over 10,000 Happy Dogs
Liver is packed with naturally occurring taurine, CoQ10, and iron to support a strong heart and liver and provide lasting energy, and overall vitality in dogs and cats.
Naturally rich in taurine and CoQ10
Supports cardiovascular health and energy
Single-ingredient, no fillers or additives
USA sourced, 100% natural
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$24.99 $23.74
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Feed Cosmo's bison liver as a daily treat or mix it into every meal. Unlike muscle meat, liver is loaded with naturally occurring taurine, CoQ10, and iron — the exact nutrients your pet's heart depends on. Studies show taurine deficiency plays a role in over 90% of dilated cardiomyopathy cases, making whole-food sources like liver one of the simplest and most effective ways to keep your pet's heart strong for life.
Why Cosmos Superior Foods?
We are not a marketing company. We are the manufacturer. Since 2012, we have been sourcing all of our raw materials from the human supply chain right here in the United States, making treats in small batches with zero shortcuts and nothing added. We started in a basement-converted-kitchen, grew to over 75,000 lbs. sold, and have never once compromised on quality. Small, honest, and made in the USA — that is who we are and that is what goes into every bag.
Why Cosmos Superior Foods?
Serve as a standalone treat, break into smaller pieces for training rewards, or crumble over your pet's meal as a nutrient-rich food topper. For best results, include liver in your pet's diet on a consistent basis — taurine, CoQ10, and iron build up their benefits over time. What you will get is a whole, clean, single-ingredient treat with no surprises. Just real liver, real nutrition, and a pet that keeps coming back for more.
Shipping & Returns
We ship fast and we stand behind every order. If your pet does not love it, neither do we. Reach out to our team and we will make it right — no hassle, no runaround. Just honest service from a small company that genuinely cares.
HUMAN GRADE QUALITY
FREE SHIPPING OVER $100
NO FILLERS NO ADDITIVES
MADE IN USA
4.9/5 STAR RATING
HUMAN GRADE QUALITY
FREE SHIPPING OVER $100
NO FILLERS NO ADDITIVES
MADE IN USA
4.9/5 STAR RATING
Chicken Lovers Bundle
10% OFF
Chicken Lovers Bundle
Bison Liver
$24.99 $22.50
Beef Hearts
$16.99 $15.34
SAVE 10%
The Heart & Liver Vitality Bundle
The ultimate heart-health duo. Beef Heart and Chicken Heart team up to deliver the nutrients your dog needs to thrive every single day:
•
Nutrient-Dense Power — Beef Heart delivers a rich source of CoQ10, iron, and B vitamins to keep your dog strong and active.
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Heart Health & Vitality — Chicken Heart is packed with taurine to support cardiovascular health and lasting energy.
DOG PARENTS LOVE US
4.9
Rating
Trusted by
10k+ Dog Parents
HUMAN-GRADE INGREDIENTS
Organs. Bring the Nutrition.
Check out Cosmo's Signature Beef Heart and Chicken Hearts -- they are nature's most nutrient-dense organ meats — loaded with taurine, iron, B vitamins, and CoQ10 to fuel your dog's heart health, energy, and vitality from the inside out. Lean, rich in protein, and completely free of fillers or additives. One ingredient. Serious results.
Supports Heart Health
Keeps the cardiovascular system strong and resilient.
Rich in Taurine & CoQ10
Natural antioxidants that strengthen defenses
High in Iron & B Vitamins
Human-grade ingredients, responsibly farmed
100% Natural
Nothing added. Nothing hidden. Just heart.
Side-by-Side Comparison
Why Pet Parents Choose Cosmo's
Not all dog foods are created equal. Here's an honest, transparent look at what separates Cosmo's Superior Foods from the rest.
Feature
Single-Ingredient Formula
Human-Grade Quality
Zero Fillers & Additives
Made in USA
Ethically Sourced
Cosmo's Superior
Big Brand Treats
Standard Treats
The choice is clear. Give your dog the nutrition they deserve.
REAL DOGS. REAL INGREDIENTS
Pet Parents Like You Tried Everything.
Then Found Cosmo's Superior Foods
Choose Your Format
Which Size is Right For Your Dog?
Whether you're trying Cosmo's for the first time or stocking up for your pack, we have the perfect size.
STARTER
4 oz Bag
Great to Start · ~28 servings
Perfect for first-timers
On-the-go convenience
Resealable bag
Best cost per serving
30-day supply (medium dog)
Ideal For: First-time buyers, small dogs, or anyone who wants to try before committing.
SELECT 4 OZ
BEST VALUE
8 oz Bag
Best Value · ~56 servings
Best cost per serving
~30-day supply for medium dogs
Resealable bag
100% human-grade chicken breast
Subscribe & Save 5% + Free Shipping
Ideal For: Multi-dog households, medium to large dogs, or anyone ready to stock up and save.
Select 8 oz Bag
Serving Guide
🐕
Small Dog
Under 25lbs
1-2 strips / day
🐕
Medium Dog
25-60 lbs
2-3 strips / day
🐕
Large Dog
60+ lbs
3-4 strips / day
30-Day Money-Back Guarantee
If your dog doesn't love it, we'll refund you in full — no questions asked.
You Asked. We Answer.
Frequently Asked Questions
How much should I feed my dog?
For small dogs (under 25 lbs): 1 teaspoon per day. Medium dogs (25-60 lbs): 1 tablespoon per day. Large dogs (60+ lbs): 2 tablespoons per day. Sprinkle directly over their regular food.
Is this safe for dogs with allergies?
Yes! Because we use a single protein source, it's ideal for dogs with food sensitivities. If your dog has a known beef allergy, please consult your vet before use.
How does the Subscribe & Save program work?
Choose your delivery frequency (every 2, 4, or 6 weeks), save 5% on every order, and get free shipping over $100. You can pause, skip, or cancel anytime — no questions asked.
What is your 30-Day Money-Back Guarantee?
If your dog doesn't love it or you don't see results within 30 days, contact us for a full refund. No questions asked, no hassle. We stand behind every product we make.