Thank you for getting in touch about our Olay Ultimate Niacinamide + Collagen Peptide24. We're deeply sorry to hear that your skin turned red in certain spots. That is not the kind of experience we want you to have and we understand how frustrating that can be. To make sure your comments get the attention they deserve, we'd like to gather some more information from you. You can be assured that the details you provide will be shared with our Safety Team and the rest of our Olay Team. Safety is our top priority and all of our products have been thoroughly tested to be safe when used as directed. While all our ingredients are thoroughly evaluated to be safe and effective when used as directed, we recognize some people may have personal sensitivities and cannot tolerate a particular ingredient or formulation. If you haven't already, we recommend discontinuing the use of the product. Any product left we ask that you keep it on hand in the event we may need to retrieve it. When you have the time, we'd like to hear more from you so please give us a call at (800) 285-5170 or email us through our Contact Us Page so we can assist you further.