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Daily Consumption of a Fruit and Vegetable Smoothie Alters Facial Skin Color

Fig 4

Change in skin redness.

Skin redness was determined before (week 0), during (week 5), and at the end (week 7) of the intervention period, and at two week follow-up (week 9), using a handheld reflectance spectrophotometer. Solid line indicates the intervention group, dashed line indicates the control group, error bars represent the standard error of the mean.

Fig 4

doi: https://doi.org/10.1371/journal.pone.0133445.g004