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The plates were read at 450 nm and concentrations obtained in pg./ml from a standard curve using a 4-parameter curve fit with blank control subtracted absorbance values and a 15% CV cut-off
Since glutathione is often used to help the body manage toxins, you want to ensure you aren't introducing new ones through a poorly manufactured supplement
Regular use may help improve the appearance of dark spots and uneven skin tone by supporting antioxidant balance and skin health
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