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† Ester C® stays in your white blood cells for up to 24 hours, which is longer than regular vitamin C. White blood cells are an important component of your immune system.
1 Moyad MA, Combs MA, Vrablic AS, Velasquez J, Turner B, Bernal S. Adv. Ther. 2008 Oct: 25(10): 995-1009.
2 Gruenwald, J. et al. 2006. Advances in Therapy. 23(1): Jan-Feb: 171-8.
U.S. patent Nos: 6,197,813 and 6,878,744.
♦ Tablets only.