This change is completely regular and happens because the cream includes Glutathione, a key ingredient that may oxidize when exposed to larger temperatures. This coloration variation would not have an impact on the efficacy or safety from the solution which is a natural attribute of Glutathione. Protected and Organic Elements: https://vita-glow-night-cream33119.nizarblog.com/32350781/a-review-of-vita-glow-night-cream