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Initial time point analysis illustrating concentration of L (A) Z (B) and MZ (C) expressed as a % of label claim for each product analysed (powder filled capsules are in red, oil filled capsules are in green). Vision Alive and Lutigold products are not shown in (B) and (C), as these products made no label claim regarding the concentration of Z and MZ. All supplements were analysed in triplicate.
