Your skincare shelf might be quietly sabotaging your glow—and you don’t even know it. Think about it: the same cream you swipe on at 7 a.m. is also applied at 11 p.m. But your skin isn’t static; it’s a living, breathing organ with different priorities depending on the time of day. Morning skin is on defense, battling sunlight, pollution, and blue light, while nighttime skin is in repair mode, regenerating and replenishing. Using the same products both times may be convenient, but convenience could come at the cost of healthier, radiant skin.Skincare seems simple on the surface—wash, moisturize, repeat. Many of us follow the same routine morning and night, believing that if a product works once, it works all day. But according to dermatologist Dr. Vikram Lahoria, this approach may be doing more harm than good. Your skin operates on a circadian rhythm, and the way it behaves during the day differs significantly from its nighttime activities. Understanding these differences—and adjusting your routine accordingly can be the difference between healthy, glowing skin and clogged pores, premature aging, or irritation.How Your Morning Skincare Is A Shield?Dr. Lahoria explains, “During the day, your skin is exposed to sunlight, pollution, dust, and even the blue light from screens. Its main role is protection. That’s why your morning routine should focus on creating a barrier against these environmental stressors.”A typical morning routine starts with a gentle cleanser to remove oils and sweat accumulated overnight. This is followed by a light, hydrating moisturizer that won’t feel greasy or clog pores. The most crucial step in your AM routine is sunscreen. No matter the weather, SPF shields your skin from UV rays, reducing the risk of premature aging, pigmentation, and even skin cancer.Adding an antioxidant serum, particularly one with vitamin C, can further protect against free radicals generated by pollution and UV exposure. “Think of it as giving your skin armor before stepping into the world,” says Dr. Lahoria.How Your Night Skincare Is To Heal and Recharge?Once the sun sets and the day winds down, your skin switches gears. “Nighttime is when your skin works hardest to repair itself,” Dr. Lahoria notes. Without sunlight and environmental stressors, skin cells can focus on regeneration and replenishment.Night creams and serums are designed to support this process. Ingredients like retinol, peptides, hyaluronic acid, and glycolic acid target fine lines, improve texture, and lock in moisture. A thorough cleanse is essential before applying these products to remove makeup, sweat, and dirt that could block pores overnight.“Nighttime is when your skin absorbs products most efficiently. The lack of UV exposure means potent actives like retinol can work without the risk of sun-induced irritation,” explains Dr. Lahoria.Why Using the Same Products All Day Can Backfire?Using identical products morning and night ignores the skin’s shifting priorities. “It’s like feeding your body the same meal for breakfast and dinner,” says Dr. Lahoria. “In the morning, your skin needs protection. At night, it needs repair. One product cannot optimally serve both functions.”Daytime exposure to retinoids or AHAs, for instance, can increase sensitivity to sunlight, potentially causing irritation, pigmentation, or damage. Conversely, using sunscreen at night is unnecessary, and while it won’t harm your skin, it doesn’t contribute to repair either. Tailoring your routine ensures that ingredients work when they are most effective, rather than canceling each other out or creating unintended side effects.Why The Order of Products Is Important?Timing is not the only consideration—the order in which you apply your skincare products matters too. Dr. Lahoria advises layering from thinnest to thickest. This ensures lightweight serums penetrate deeply before being sealed in by heavier creams or oils. Incorrect layering can hinder absorption or even reduce the efficacy of active ingredients.For example, a vitamin C serum should be applied before moisturizer, while a heavier night cream should go last. By following this approach, each product can work as intended, maximizing benefits without waste or interference.Personalising Your Routine to Your Skin’s ClockYour skin, like your body, has a circadian rhythm. During the day, its priority is defense; at night, it focuses on repair. “Ever wonder why your skin behaves differently in the morning than it does at night? That’s your internal clock at work,” Dr. Lahoria points out.Adjusting your routine according to this natural rhythm ensures your skin gets the right nutrients at the right time. In the morning, protect; at night, repair. Over time, this approach improves skin health, prevents premature aging, and enhances the results from the products you invest in.Morning and Night Routine TipsDr. Lahoria summarizes an effective framework:Morning:Gentle cleanser to remove overnight oilsLight moisturizer for hydrationSPF to protect against UV damageOptional antioxidant serum for pollution defenseNight:Thorough cleanse to remove dirt, makeup, and pollutantsSerums or creams containing retinol, peptides, hyaluronic acid, or glycolic acidNight cream to lock in moisture and support cell repairFollowing these guidelines ensures that your skin is supported according to its natural needs, rather than treated with a one-size-fits-all approach.Skincare is not just about selecting the “right” products—it’s also about using them at the right time. Dr. Lahoria concludes, “Your morning and evening routines should act like a tag team. Each plays its role in protecting, repairing, and energizing your skin. Your clock isn’t just ticking, it’s guiding your glow.”By understanding your skin’s natural cycles, choosing the right ingredients for day and night, and applying them in the correct order, you ensure your skin remains healthy, radiant, and resilient—without unnecessary irritation or damage.Dr. Vikram Lahoria is a consultant dermatologist and medical advisor at Ceuticoz in India