My siberian husky begins to loose the hair on her ear margins without adequate zinc supplementation. I've tried various zinc products and this works best for her. Great product.

Was the only thing that helped my girl that had a zinc deficiency. She also seemed to love the powder because she would always lick the bowl clean

 

I have used this product for over 10 years and it works well to help dogs

under stress- especially with minor skin issues like fungal infections or

summer excema. I first started using it on the advice of a Veterinary dermatologist.

I think it helps with pigment loss too- fading pigment around the lips and nose.