Obagi Medical Professional-C Vitamin C Serum is formulated with a stabilized form of vitamin C, a well-known antioxidant that supports skin health by helping to brighten the overall complexion and reduce the visible appearance of fine lines and wrinkles. The serum is designed to be gentle enough for sensitive skin, with a pH-balanced and water-based composition that minimizes irritation while delivering active ingredients. Its lightweight texture absorbs quickly without leaving a greasy residue, making it suitable for layering under sunscreen or moisturizer as part of a daily skincare routine. The formula focuses on maintaining the potency of vitamin C through careful stabilization, which helps preserve its effectiveness during use. This serum can be applied in the morning to help defend against environmental stressors, as vitamin C works to neutralize free radicals that may contribute to premature signs of aging. Because it is fragrance-free and contains no harsh alcohols, it may be well-tolerated by those with reactive or easily sensitized skin. The product comes from the Obagi Medical line, a brand with a clinical background in dermatology-focused formulations. While individual results may vary, regular use as directed can support a more even skin tone and a smoother-looking texture over time. As with any skincare product, a patch test is recommended prior to full application to confirm compatibility.