97% Pure Gypsum Powder, 1 lb – High Solubility Calcium Sulfate Dihydrate for Soil, Gardens, Lawns, and Mushroom Substrate

While not the cheapest, it is hard to find this quality at anything less then $10 a pound, and being that it was entirely clean of contamination I’d say it is absolutely worth the price, especially when growing gourmets in which is a food safety concern with some brands.

Seems good quality and legit. It didn't kill my plants!

I recently started using gypsum powder in my garden, and I'm pretty impressed. It's way cheaper than other soil amendments I've tried. I noticed a real difference in my plants' growth, especially my tomatoes. They seem healthier and more productive. The powder is easy to mix into the soil, and it doesn't have a strong smell. Plus, it's a natural product, so I feel good about using it. I'd definitely recommend giving it a try if you're looking to improve your soil.

Worked well for mixing!

Good

I’m using gypsum to break up clay soil, and it takes more than a few weeks to see results. Asking for a review at this time is inappropriate.

Fast service, lab quality

Its gypsum. Nothing wrong with it! Good price.