Nitrogen, potassium and phosphorus are among the nutrients in old coffee grounds that can help plants to grow while tannic acid in tea leaves also has benefits. Adding these occasionally to soil ...

Not sure if you have fine hair? Take a strand of hair and rub it between your fingers. If you can't really feel it, that means your hair is fine—which means you want to look for a dry shampoo that can ...

Additionally, chestnut’s lightweight, strong wood with high tannic acid content making it rot resistant, was a natural resource of vital importance.

The pieces are entirely natural and therefore must be handled with care. Like all woods, these can leach tannic acids into the water, affecting pH. Prior soaking until such acids have leached would ...

These also release huge amounts of raw tannic acids, creating the blackwater conditions many South American biotope fans crave. They will reduce pH at the same time. We also played with different ...

This discovery has made GelMA an attractive and cost-effective material for biological applications. Different molecular weights of hyaluronic acid have different biological activities, Ke et al.