Dr. Vikram Lahoria ,Medical advisor | Ceuticoz
Your skin follows a circadian rhythm, with different needs in the morning and at night, which is why using the same products twice a day can compromise results. In the morning, the skin is in defense mode, working to protect itself from sunlight, pollution, dust, and blue light; hence, your routine should focus on cleansing overnight oils, applying a light moisturizer, and most importantly, sunscreen, supported by antioxidants like vitamin C for added protection. At night, the skin switches to repair mode, when cell turnover, collagen production, and regeneration peak; this is the ideal time for potent actives such as retinol, peptides, hyaluronic acid, or glycolic acid, followed by a nourishing night cream. Using retinoids or exfoliating acids during the day can increase sun sensitivity, while applying sunscreen at night adds no benefit. The order of application also matters — layering from thinnest to thickest ensures proper absorption and efficacy. By tailoring your skincare to your skin’s internal clock — protect by day, repair by night — you maximize results, prevent irritation, and support long-term skin health and radiance.
