I often stay up late and my skin is not very good, so I sometimes drink collagen to supplement it. YPEPRO Beauty Salmon Protein Beverage is the favorite of its kind I have ever eaten. It can not only lighten dark circles, tighten skin, improve wrinkles and spots, but also improve sleep. I have been drinking for more than a month, and now I feel very energetic every day, and my sub-health status has improved obviously.