Product description here on iherb (supplement facts) says this is zinc sulfate, which is what I was looking for, and came up on search. Product arrived and is zinc gluconate, not sulfate.
Looked at the iherb photo of ingredients and it says it is gluconate on the iherb label photo.
Nothing wrong with gluconate, & I like the moderate dose, so I'll be taking this, but was specifically looking for sulfate.
Not sure how to rate Zinc since it's difficult for me to determine its effectiveness. Just trust it to be what it is. No ill effects experienced, so assuming the product constituencies are accurate, I rate it as excellent.
I used this supplement for the prevention of SARS and fashionable illness in combination with other drugs (vitamins C, D3, selenium, omega, etc.). The dosage is convenient, the number of tablets lasted for a long time.
A good form of magnesium for the prevention of respiratory diseases and boosting immunity. Especially, I give zinc to the whole family in September-October and March-April. You should always have it at hand.