Should I take glutathione in the morning or night?

Should I take glutathione in the morning or night?

A Glutathione efficacy in skin lightening works only if it is taken with Vitamin C at least equal or twice its dosage. Standard dosage is 20-40 mg/kg of body weight for 3-6 months once or twice in a day and best if taken at night 2-3 hours after last meal for better absorption.