COSRX Vitamin C Serum with Vitamin E & Hyaluronic Acid, Brightening & Hydrating Facial Serum, Korean Skincare

The COSRX Vitamin C 13 Serum is a lightweight and highly concentrated serum that targets visible signs of aging and skin discoloration. Formulated with 13% pure Vitamin C (Ascorbic acid), Vitamin E (Tocotrienol), and Hyaluronic Acid, this serum aims to even out skin tone, improve fine lines, and provide deep hydration.

According to the clinical test results, the serum has demonstrated impressive improvements in skin elasticity, texture, and pigmentation. After 4 weeks of use, skin elasticity improved by 19%, skin texture improved by 113% immediately, and pigmentation diminished by 16%. Additionally, the skin's roughness was reduced by 20% immediately after use.

The serum's antioxidant effects have also been clinically tested, with the results showing that the antioxidant benefits lasted for 120 hours (5 days). In a satisfaction survey involving 20 women aged 30-65, 100% of participants were satisfied with the serum's hydrating, texture-improving, and illuminating effects.

It is important to note that this serum contains a high concentration of pure Vitamin C, and a patch test on the body is recommended before using it on the face. This precautionary measure is to ensure the serum is well-tolerated and does not cause any adverse reactions.

To use the COSRX Vitamin C 13 Serum, shake the bottle 1-2 times and apply 2-3 drops once or twice daily, either on its own or after cleansing and toning. For daytime wear, follow up with an SPF 30+ sunscreen. The serum can also be applied around the eye area, but direct eye contact should be avoided. To maintain the serum's potency, it is recommended to store it in the refrigerator.

The COSRX brand is known for its commitment to using skin-friendly ingredients and formulas that address various skin concerns. All COSRX products are hypoallergenic, dermatologist-tested, and free of animal testing, parabens, sulfates, and phthalates.

In summary, the COSRX Vitamin C 13 Serum is a potent and lightweight serum that targets visible signs of aging, skin discoloration, and dullness. With its proven clinical results and COSRX's commitment to quality and safety, this serum can be a valuable addition to your skincare routine.

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