Vitamin CK3 is the combination of Vitamin C and vitamin K3 and has been shown to inhibit tumor growth and lung metastasis.
[1]. Chen MF, et al. Inhibitory effect of vitamin C in combination with vitamin K3 on tumor growth and metastasis of Lewis lung carcinoma xenografted in C57BL/6 mice. Nutr Cancer. 2011;63(7):1036-43.
















