The tamazcal (Nahuatl for “house of heat,” or possibly Aztec for “bath house”) is a sauna-like structure invented by the pre-Columbian inhabitants of Central Mexico, and the region south to present-day Costa Rica. These structures are still in use, performing a similar function as that of a sweat lodge or steam room.

Starting around 7000 BCE, complex agrarian cultures began to form in this region, along with the creation of sedentary agricultural villages, and ceremonial centers. Purification rituals were among the curative ceremonies performed by these indigenous people, designed to rejuvenate the body after battle or a ball game.

The way in which these therapies cleanse the body is believed to involve “heat shock proteins” (HSPs) that are created in response to environmental stresses, in this case the high temperature and humid environment of the tamazcal. HSPs are involved in binding antigens and presenting them to the body’s immune system. They also provide an essential role in the formation of other proteins, and in the body’s cellular repair system.

Along with the heat therapy provided by the tamazcal, many practitioners suggest imbibing in another source of HSPs: Opotunia-Ficus-Indica, or prickly pear cactus. The fruit is high in antioxidants, particularly betalains (betanin and indicaxanthin), two molecules that give the juice its nearly fluorescent red color. With a flavor reminiscent of watermelon, the juice is rich in Vitamin C, and is one of the first cures for scurvy! The plant also contains at least five other antioxidant flavinoids. The pulp of the fruit contains the carbohydrates glucose, fructose and starch, proteins, and fibers rich in pectin.

Eleuthero root (Eleutherococcus senticocus)is a medicinal plant native to northeast Asia. It is often referred to as Siberian Ginseng, as it is widespread in North Korea and throughout Northeastern Russia. It is not the same as Panax ginseng, the more common Chinese herbal medicine. Eleuthero is considered an anti-oxidant “adaptogen” that reduces the impact of stress, while stimulating the central nervous system.

Rooibos or “red bush” (Aspalathus linearis) is a broom-like legume growing in the fynbos (shrubland) of the Western Cape of South Africa. The leaves of the plant are used to make a bush tea, which has been popular there for generations. Rooibos leaves are oxidized (“fermented” in tea parlance) to create their red color and complex flavor. They are high in Vitamin C and antioxidant flavonoids. Cinnamic acid gives them a honey-like aroma. Rooibos has a bitter/sweet taste that has been described as slightly pungent and “warm.”

These three ingredients combine in Tamazcal Opotunia with citrus juice and zest to create a potent tonic, cleansing indeed but also a refreshingly cool end to a steamy session in a tamazcal, a hammam, or just a hot August night.