to treat diarrhea, hemorrhage, and skin disease.

Showing promise in treating colorectal, pancreatic, lung, prostate, cervical, and skin cancer in vitro and in animal models,

Interesting that this substance had been used from the time of Moses for making special ink!

What’s clear in our tradition is that Moshe was told by G-d at Sinai that these holy items must be written with an ink called de’yo. It’s also clear that this de’yo must be black and must have staying power.

From the Dead Sea scrolls and ancient tefillin analyzed using a cyclotron at UC Davis we can see that originally scribal ink was carbon-based. Soot was gathered from burning vegetable fats, mostly olive oil. Charcoal dust was produced by burning vegetable matter such as beech trees or cedars. Often, a glass plate was suspended over the burning materials, and the gathered soot was scraped off for use.

Durability was achieved by adding oak gall-nut powder, a substance rich in tannic acid, to “bite” into the parchment. The galls are formed when a gall wasp lays eggs on the leaves of oak trees