Black Leaf

Black Leaf Reviews

A product’s star rating is calculated as the average of all its reviews.


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Sold by Nzymes

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3.4K Reviews

4.8

The information on this page is based solely on product reviews written by customers of Nzymes via Trustpilot.


Product details

Brand: NZYMES

Traditional herbals to support respiratory, digestive, and overall resilience. Worried about seasonal sniffles, slow digestion, or general stress from the environment? This carefully balanced herbal blend combines olive leaf, black walnut, and cayenne — botanicals long used to support respiratory comfort, digestive balance, and nutrient uptake. It’s made to be a simple daily support you can add to meals. Respiratory support (traditional): Olive leaf has a long history of use for breathing comfort and environmental stress support. Natural iodine source (traditional): Black walnut provides a concentrated, plant-based source of iodine used historically in herbal traditions. Better nutrient uptake: Cayenne is traditionally used to help the body absorb and use other herbs and nutrients. What it is: A thoughtfully blended herbal formula made from natural olive leaf, black walnut, and cayenne — blended and manufactured in the USA. Who it’s for: Pet owners looking for a natural, herbal support option for pets as part of a balanced care routine. Suitable as a daily supplement for animals per the feeding guide on the label. Simple 3-step plan: Add the recommended serving to your pet’s food daily. Follow the dosing guide for your pet’s size. Monitor comfort and adjust with your vet if needed. We design our blends to support everyday resilience. If your pet has ongoing health concerns, consult your veterinarian before use. Add to Cart — Start Herbal Support Herbal blend for respiratory & digestive support Traditional botanicals: Olive Leaf, Black Walnut, Cayenne Made in USA Ingredients listed for informational purposes only. Not intended to diagnose, treat, or cure any condition. Consult your veterinarian if your pet has special health needs. Sourced and manufactured in the USA.

All reviews


Rated 5 out of 5 stars

Love this product! Use it with both of my dogs. Has really helped also with Boston Terriers gas!

Rated 5 out of 5 stars

Seems to be working! can’t wait for the final result!

Rated 1 out of 5 stars

No difference in both my dogs

Rated 4 out of 5 stars

It along with entire skin care is working for Callie Mae

Rated 1 out of 5 stars

Bought this to treat Giardia on my pup. Didn’t work

Rated 5 out of 5 stars

I use all the products in conjunction so I'm unable to say how they each work separately, together though - they are wonderous !

Rated 5 out of 5 stars

I have used all of the NZyme products for over a year now and they have helped my Yorkie so much. I will continue using them in the future!

Rated 1 out of 5 stars

Our dog wouldn't eat his food when we started adding the BlackLeaf Tincture, so we had to quit giving it to him.

Rated 3 out of 5 stars

My dog has only been on this treatment since March 4, 2020. Cant rate it yet.

Rated 5 out of 5 stars

I have an all American pitbull who suffers from Warts she has sensitive skin as soon as I start to see one I give her the black wigs and the way it goes ✨🙏🏼✨ This stuff's like magic 🧙🌟🌟🌟🌟🌟 fivestars

Rated 5 out of 5 stars

this has revolutionized my German Shepherd's yeast problem.

Rated 5 out of 5 stars

Use in conjunction with Nzymes granules to relieve skin conditions in dogs.

Rated 2 out of 5 stars

Our dog has problems with his eyes and ears getting itchy, and I tried this and some other products. However, it didn't seem to help even though we had him on them for several months.

Rated 5 out of 5 stars

This item was part of the large kit I ordered.

Rated 5 out of 5 stars

This is excellent my bullmastiff no longer has hair loss, great product.

Rated 5 out of 5 stars

Great tincture, I feel it really helped with my dog's overall healing.

Rated 2 out of 5 stars

I have used this product for my Old English Bulldog Buster for years, but recently the texture is not the same (not clear anymore). I was told it was good and OK to use, but I just can't do it. I bought 3 bottles from you a month or so ago, opened two, which were both gritty, and tried to send them (all 3) back to you, but it wasn't that easy. I was able to find a bottle at my local pet store, bought it, and it was clear like it should be

Rated 3 out of 5 stars

I’ve had to order this twice since November. Wish it came in a larger size because bigger animals have to take more...10-15 drops twice a day...it doesn’t last long.

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Reply from Nzymes

Hello Sherry. We understand your concern, but being packaged in glass(as required) presents problems for potential breakage. To get around this, we offer multi-bottle discounts to help with costs.

Rated 3 out of 5 stars

We have had our dog on this for 5 months and still has a ways to go to get read of the infections, loss of hair and black skin.