Shuddha Parad is processed mercury as per Ayurvedic Rasa Shastra principles. The several processes are used for detoxifying and purifying the mercury. These processes are called SHODHAN KARMA. The main purpose of SHODHAN KARMA is to make organic or inorganic substance consumable for human. These processes help decreasing side effects, toxicity and after effects of the substance.
Which is Shuddha Parad?
According to Bhaishajya Ratnavali, Mercury (Parad) should be extracted from the Cinnabar (Hingula). The Mercury (Parad) obtained from the cinnabar should be processed with Garlic Juice, Betel Leaf juice and Triphala Decoction. Then Mercury (Parad) should be washed with Kanji water (ayurvedic fermentative preparation) to obtain Shuddha Parad. The Parad Obtained through this process is called Shuddha Parad.
However, it is a simple and easy method, but ayurveda has explained more methods to obtain Shuddha Parad and they may be different as per specific ayurvedic texts.