Yes, because contrary to popular belief, vitamin C itself doesn't photosensitize the skin. However, the formulation containing vitamin C can increase the skin's sensitivity to sunlight. That's why it's crucial to carefully select your vitamin C serum to ensure that the overall formula doesn't photosensitize your skin. When the formula doesn't photosensitize the skin, as is the case with our Organic Glow C Serum, it can be applied in the morning (it's even recommended!), year-round. The antioxidant properties of vitamin C then act as a shield, safeguarding the skin against external aggressors such as the sun and pollution. Always remember to complete your skincare routine with SPF 50+.