HIS STUDY goal was to find out if Spirulina platensis (SP) could help protect rats from the harmful effects of tert-butylhydroquinone (tBHQ). The animals were classified into four groups, each including seven rats. Group I consisted of healthy rats (control), while group II was subjected to an intraperitoneal administration of 100 mg/kg of tBHQ for duration of 7 days (+Ve). Group III received a dosage of 500 mg/kg (body weight) of SP and 100 mg/kg of tBHQ, while group IV was administered a mixture of 750 mg/kg of SP and 100 mg/kg of tBHQ. The rats that were given tBHQ alone had significantly higher of liver enzymes like ALT, AST, and ALP in blood. The tissue levels of the antioxidants glutathione, superoxide dismutase, total antioxidant capacity, and catalase decreased significantly in rats that were exposed to tBHQ-induced toxicity. In the experiment, rats were administered tBHQ as a positive group, leading to an increase in blood lipid profiles (such as TC, TG,) except for HDL-c as compared to the negative treatment. Administration of SP powder led to enhanced blood biochemical parameters and decreased MDA levels in rats that were injected with tBHQ. Rats exhibited an increase in their antioxidant indicators. It has been shown that there was a strong investigation we did shows a strong link between the β-actin, Bcl2, HO-1, and Nrf2 genes in the liver of the four groups that were subjected to experiments. These effects have been shown in blood lipid profile, antioxidant markers, and liver enzymes after exposure to tBHQ.