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Vitamin C Serum Guide: Formulations, Layering, and Troubleshooting
Within the modern dermatological landscape, few active ingredients boast the clinical backing and broad therapeutic utility of topical Vitamin C. Renowned as a gold-standard antioxidant, it is a foundational pillar for any evidence-based skincare routine designed to combat environmental aging and hyperpigmentation. However, the mass market is saturated with volatile, poorly formulated products that render…