Hi, I have a question about tannins! In the Organoleptics section regarding the Astringent texture of plants, it says:
“The tannins bind to the collagen proteins in the hide and coat them, making the skin less porous and flexible,
thus decreasing water solubility and susceptibility to bacterial attack.”
Is this referring specifically to tanning hides, or does it have the same effect on living human skin as well??