When should I put on vitamin C serum? It’s a question that often lingers in the minds of skincare aficionados and casual users alike. Could the timing of this potent elixir significantly impact its efficacy? Is there a scientifically optimal moment during the day to incorporate it into my routine? Some skincare enthusiasts swear by its morning application, insisting that it offers an enhanced protective shield against environmental factors like UV rays and pollution. Yet, others suggest that evening use might be advantageous due to the skin’s regenerative processes during sleep. What about layering it with other products? Should it precede or follow moisturizers, or even sunscreens? Moreover, are there particular skin types or concerns that might necessitate different application times? As we traverse the complex world of skincare, isn’t it fascinating to consider how the simple act of applying vitamin C serum can be influenced by so many variables? What does the latest research indicate about the timing for maximum absorption and benefits?