Royal Blood-Fresh (Korean: 혈궁불로정) is a traditional Korean medicine (Koryo medicine) health supplement derived from soybeans.
[3] It is marketed as a "blood purifier" and a preventative against deep-vein thrombosis.
[1] It is marketed to foreigners during Air Koryo flights[3] and has been sold at Pyongyang Gwan, a North Korean restaurant in Hanoi, Vietnam.
[4] It has been dismissed outside of North Korea as a non-scientific "miracle cure".
[3] In 2017, three Russian nationals were arrested in South Korea for selling North Korean drugs, which included Royal Blood-Fresh, Kumdang-2, and Neo-Viagra-Y.R.