Bottle of Nzymes® Tincture of BlackLeaf - Natural Yeast & Immune Support for Pets
English Bulldog named Sophia with text about her condition and improvement using Nzymes® Tincture of BlackLeaf - Natural Yeast & Immune Support for Pets.
Nzymes® Tincture of BlackLeaf - Natural Yeast & Immune Support for Pets Products Facts

Cleanse

Black Leaf

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4.3 Trusted By 200+ Pet Parents

Helps cleanse the body from the inside out — supporting natural detox, healthy digestion, and immune defense.

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Supports liver detox and waste removal

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Aids immune recovery and defense

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Promotes clearer skin and vitality

For All Pets

2 OZ

One time purchase

$37.99

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20%

$30.39

Ships automatically every 3 months

Under 40¢ a day for lasting wellness

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Harness the power of nature for your pet’s daily defense.

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120-Day Worry Free Guarantee

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Fast, Easy Returns

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Family-Owned for 26+ Years

Natural Ingredients

Key Ingredients

What It Does

Black Walnut Hulls

Parasite Control

Olive Leaf

Immune health

Cayenne Pepper

Circulation boost

Herbal Blend

Whole-body support

Results You Can See 🐾

Thousands of pet parents have seen life-changing results — see what a few of them shared below.

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Before

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Love it or get 100% back

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Free shipping over $65

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Hassle-free returns

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Talk to real pet experts

Q: What does Nzymes® BlackLeaf Tincture help with? A: Nzymes® BlackLeaf Tincture supports your pet’s natural defenses and helps cleanse the body from the inside out. It’s especially useful for pets facing immune challenges, yeast buildup, or occasional detox needs.

Q: How does Nzymes® BlackLeaf Tincture work? A: The blend of Black Walnut, Olive Leaf, and Cayenne helps maintain a clean, balanced system by supporting circulation, healthy digestion, and immune function. It works gently to help the body eliminate impurities and restore internal balance.

Q: When will I see results, and how do I use it? A: Many families notice improvements in comfort, odor, or energy within the first few weeks. For best results, use daily according to your pet’s weight chart on the label. For ongoing wellness, BlackLeaf can be used alone or alongside other Nzymes® products as part of a full support system.

BlackLeaf Tincture: Made from Black Walnut hulls, Olive Leaf and Cayenne, this natural herbal blend supports circulation, cleansing, and immune balance. These ingredients help the body fight unwanted buildup, promote detoxification, and encourage a healthy internal environment.

Orders placed by 3 p.m. PST (Monday–Friday) ship the same business day from our Las Vegas warehouse. Tracking details are sent via email once your package leaves our facility.

  • Free shipping on U.S. orders $65 and up (via USPS Priority Mail, 2–3 business days).

  • International orders ship via Priority Mail International (7–10 business days) or First-Class International (7–14 business days).

  • Shipping delays may occur during holidays or weather disruptions, but we’ll notify you right away if that happens.

120-Day Money-Back Guarantee: If you don’t see improvement in your pet within 120 days, you may return the unused portion of your order for a refund of the product cost.

  • Contact us to request an RMA (Return Authorization) before returning.

  • Refunds are processed within 4–7 business days after arrival.

  • If your order included free shipping, a $10 return fee applies.

Need help? 📞 (877) 816-6500 ✉️ customer.care@Nzymes.com

Immune Boost Bundle

Black Leaf

$32.79

$40.99

Herbal support for cleansing, circulation, and immune defense

Ox-e Drops

$32.79

$40.99

Oxygen-based support for immune strength and detox

Total

$65.58

$81.98

Get the kit

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Free Delivery

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Money Back Guarantee

Two bottles of Nzymes supplements for pets - Nzymes® Immune Boost Bundle – Ox-E Drops & Black Leaf Tincture for Skin & Immune Support for Pets

What Pet Parents Are Saying About Nzymes 💕

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4.7/5

from 4,631+ reviews

89%

Saw improvement in 2 weeks

85%

Would recommend to friends

96%

Plan to reorder

Benefits of Antioxidant Treats

Supports Skin & Coat

Helps support healthy skin and a shinier coat when used as part of a regular routine.

Promotes Digestive Comfort

May help support digestion and a balanced gut environment for everyday feeding.

Supports Mobility & Energy

Formulated to help promote joint comfort and everyday vitality in active dogs.

Cellular Antioxidant Support

Contains antioxidant enzymes that help protect cells from everyday oxidative stress.

Natural Ingredients

Dried Soybean Sprouts

Nutrient-rich sprout base that supports the formula.

Defatted Beef Liver

Cooked beef liver used as natural protein.

Rice Bran

Gentle source of B vitamins and fiber for digestion.

Beef Liver Flavor

Natural flavoring to make treats palatable for picky dogs.

Vitamin C

Familiar antioxidant compound often used for general support.

Vitamin A

Familiar antioxidant compound often used for general support.

Vitamin E

Familiar antioxidant compound often used for general support.

Selenium Yeast

Familiar antioxidant compound often used for general support.

Every product works harder together — build a routine that keeps tails wagging.

Build Their Complete Care Routine

View all

Nzymes antioxidant treats for Dogs Joints, HIPS, Paralysis, Skin, Coat, Hair Loss, Aging, Digestion, Neurological, Seizures

BESTSELLER

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4.7

(853 reviews)

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Antioxidant Treats

Daily probiotic support to keep digestion smooth and tummies happy

Add to Their Routine

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Repair

Black and white Border Collie dog named Rocky testimonial about yeast infection and recovery by using Nzymes® Bac-Pak Plus – Natural Digestive Enzymes and Probiotics for Healthy Digestion

BESTSELLER

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4.7

(457 reviews)

$31.99

$33.99

Bac-Pak Plus

Natural defense for immune strength & skin health

Add to Their Routine

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Digestion

Bottle of Nzymes® Tincture of BlackLeaf - Natural Yeast & Immune Support for Pets

BESTSELLER

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4.7

(457 reviews)

$37.99

$43.99

Black Leaf

Fuels recovery, boosts energy & resilience for a healthy pup

Add to Their Routine

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Recovery

Nzymes Healthy Skin Shampoo Plant-Based Enzymatic Shampoo For Pets bottle for dogs, cats, and companion pets

BESTSELLER

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4.7

(457 reviews)

$24.99

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Healthy Skin Shampoo

pH support for vitality & wellness for all pets

Add to Their Routine

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Relief

Bottle of Nzymes® Ox-E-Drops – Gentle Spot Treatment for Irritated Skin and Daily Care
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Shield

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4.7

(919 reviews)

$29.99

$31.99

Ox-E-Drops

Superfood protein for digestion & whole-body balance

Add to Their Routine

NZYMES sprouted granules packaging with images of animals and text on a white background
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Foundation

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4.7

(919 reviews)

$39.99

Sprouted Granules

Superfood protein for digestion & whole-body balance

Add to Their Routine

Bottle of NZYMES Tracite Minerals - Daily Supplement & Natural Mineral Drops for Dogs & Cats

BESTSELLER

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4.7

(853 reviews)

$37.99

$44.99

Tracite Minerals

Daily probiotic support to keep digestion smooth and tummies happy

Add to Their Routine

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Restore

How to Use

Cleansing your pet’s system is easier than you think.

Step 1

Open the Dropper

Easy-to-measure, no mess.

Step 2

Add with Care

Place drops directly on food. Follow guidelines for use per wieght.

Step 3

Support Naturally

Bolsters immunity, flushes toxins, promotes healthy skin.

Customer Reviews

Based on 218 reviews
78%
(171)
5%
(10)
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(10)
2%
(5)
10%
(22)
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Patricia Bredewater

Dog does not like the taste, so I mix it in peanut butter then he will take it.

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TGG Reviews

We purchase this regularly, and it never disappoints. The quality is consistently high, and it has made a noticeable difference in our pets' overall well-being. They respond well to it, and it has become a trusted part of their daily routine. Highly recommend for anyone looking for a reliable, natural supplement for their animals.

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2KingsMom

Waste

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Misty Blue "Tarra"

I have been using this product on two of my dogs for well over a year and although I did find one flea on my younger dog this summer overall I have to say that my dogs are flea free.

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Marilyn Walker

Glad to have. Good supplement

Lets help your pet feel their best, everyday-naturally.

Your pet’s body is made of trillions of tiny engines called cells. When those cells run clean and strong, your pet moves easier, feels better, and stays active longer.

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Feed the Cells

Most commercial pet foods lose natural enzymes during processing. Nzymes® helps replace those missing nutrients with sprouted soy, rice bran, and essential vitamins that fuel your pet’s cells — supporting normal digestion, energy, and everyday vitality.

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Protect from Stress

The antioxidants inside each chew act like tiny shields, protecting your pet’s cells from everyday wear and tear. This helps keep joints flexible, skin clear, and energy steady.

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Support Everyday Health

With stronger cells, your pet can move and play more easily. Healthy cells mean a happy, active pet — shining coat, wagging tail, and all.

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Key Ingredients

Live Sprouted Soy

Sprouted soy helps your pet’s body make natural enzymes that keep joints strong and flexible.

Rice Bran

Supports joint comfort, immune strength, and steady daily energy.

Beef Liver

Beef-liver nutrients provide B-vitamins and amino acids for energy metabolism.

Vitamins A,C & E

Essential antioxidants that defend against free radicals and strenghten immune.

Selenium

A vital trace mineral that activates antioxidant enzymes for deep cellular protection.

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800+

Verified 4.6-star reviews*

See Why Pets Love Nzymes

You’re not alone in this — we’ve helped thousands of pet parents take their pets from struggling to thriving, one simple step at a time.

Bella was paralyzed from the hips down, her owners were deep in sorrow...

Rusty was hit by a car and left to die, but Kara and her team was not going to give up...

Bailey's back legs gave out, her owners thought this was her new life...

Why Enzymes Matter

You know your dog better than anyone. When they start hesitating before jumping on the couch or taking a little longer to get up after naps, it can be easy to think it’s just age. But inside every dog’s body are billions of cells that act like little engines — and over time, those engines can lose their spark.

Modern diets, stress, and aging all reduce the body’s natural enzyme activity — the key to how food gets turned into energy. Without enough enzyme support, their body simply can’t “run” as efficiently. That’s where Nzymes® comes in. Our products add back real, food-based enzymes that help fuel normal cell processes — so your dog can keep doing what they love with natural energy that last

When your dog’s skin looks dry or they can’t stop scratching, it’s often more than a surface issue. The skin is like a mirror for what’s happening inside. If their digestion or immune system is out of balance, you’ll often see it show up as dullness, flakes, or irritation.

Enzymes help the body break down and use nutrients more efficiently — including the vitamins and antioxidants that nourish skin cells. When those nutrients are absorbed properly, the body can naturally maintain a healthy coat and balanced skin. Nzymes® supports that process from within — helping the body stay balanced, so the outside can reflect that health.

Maybe they’re less playful, more tired, or just don’t have that spark you remember. It’s heartbreaking because you can’t ask them what’s wrong — you just know something’s off.

Often, when a dog “slows down” emotionally or physically, it’s because their cells are working harder than they should. Processed foods and stress can reduce the enzymes their body relies on for normal detox and energy production. By giving your dog natural, enzyme-rich nutrition, you’re helping their body function the way it’s meant to — supporting balance, energy, and that happy personality you love seeing every day.

You’re doing your best — we know how much thought goes into what you feed your pet. The truth is, even the best kibble goes through heat processing that can destroy many of the natural enzymes and nutrients found in fresh food.

That doesn’t make kibble “bad” — it just means your dog may be missing some of what nature intended. Nzymes® bridges that gap by adding live, food-based enzymes that help the body get more out of every meal — supporting digestion, energy, and overall wellness in a way that feels more like nature.

You’re not alone. Most pet parents today want to support their dog’s body before problems get serious — to strengthen, not suppress.

Enzymes are one of nature’s most foundational tools for balance. They don’t force the body to do anything unnatural — they simply support the systems that already exist: digestion, energy, detox, and repair. That’s what makes Nzymes® different. It’s not a quick fix; it’s a daily way to help your pet’s body do what it was designed to do, naturally.

How to Use

Healthy habits that take less than 20 seconds.

Step 1

Pop the Lid

Your little friend will come running the second they hear it.

Step 2

Treat with Love

A daily bite of natural support they’ll beg for.

Step 3

Make It Easy

Crumble over meals for even the pickiest eaters.

Directions for Use

Pet Weight

Daily Usage

10 lbs or less

1/2 treat

11-60 lbs

1 treats

61 - 150 lbs

2 treats

150 lbs or more

3 treats

Because it’s a natural, food-based supplement, it can be safely added to any diet or used alongside veterinary care.