This juice is introduced and explained by Imam Reza (a.s.), the blessed grandson of the Holy Prophet (p.b.u.h). The ingredients is mainly based on black raisins and saffron. It takes a few months for the juice to be made.
Imam (a.s.) says, if anybody drinks from this juice after each meal, their body will be protected against all diseases.
The blessed juice is good for cold diseases such as gout, joint pains, nervous system problems, tummy issues, brain weaknesses, spleen issues, kidney issues and improving body organs. It also relieves headaches and increases sexual ability, whilst improving the vision and memory.
In his book, Risalat al Dhahabiyya (Golden Medical Dissertation), Imam Reza (a.s.) says the following about the juice
So if you eat the amount of food which I have described to you, then drink of this drink an amount of three glasses after your food. If you do that, you will be safe throughout your day and night from cold, chronic aches such as gout, wind, and others from among the aches of nerves, brain, stomach, and some aches of liver, spleen, intestines, and bowels. If you, after that, feel appetite for water, then you must drink of it the half of what you had drunk, for it puts right, regulates, and keeps the body. Surely the betterment and straightness of the body and its corruption come through food and drink. So if you put them right, then your body is good; and if you corrupt them, then your body is corrupt.