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Artificial UV-B (280-320nm) radiations inflict variety of photobiological effects, besides effects on nervous, respiratory, excretory and circulatory system in particular which exhibit profound changes by the generation of free radicals.Albino rats were irradiated with artificial UV-B+KRG treated group, KRG+UVB treated group, KRG treated group and control.Peripheral blood was drawn at predetermined time intervals to quantitative haematological parameters.Free-radicals produced by UVB, change the membrane structure of blood cells by oxidative damage leading to photohemolysis at the level of bone marrow which attained normalcy following Korean red ginseng root extract in order to test its intelligence in vitality enhancement, stress resistance and restoration of hemostasis which registered positivity.