Description

AQUA, ASCORBIC ACID (Pure vitamin C), BUTYLENE GLYCOL, DIPROPYLENE GLYCOL, TROMETHAMINE, 3-O-ETHYL ASCORBIC ACID (Vitamin C derivative), PANTHENOL (Pro-vitamin B5), ACETYL GLUCOSAMINE (Antioxidant), CAFFEINE (Active ingredient derived from the Arabian coffee tree), SODIUM HYALURONATE (Hyaluronic acid), SODIUM SULFITE, DISODIUM EDTA, GLUTATHIONE (Antioxidant), ADENOSINE (Active), GARDENIA FLORIDA FRUIT EXTRACT, ALLANTOIN (Active ingredient derived from comfrey), DEXTRIN, SQUALANE (Squalane, Hydrogenated Oil), TOCOTRIENOLS, TOCOPHEROL (Vitamin E), ELAEIS GUINEENSIS OIL (Oil palm vegetable oil (comedogenic)), ARGININE (Amino acid), NIACINAMIDE (Vitamin B3), PENTYLENE GLYCOL, Licorice Root Extract (Licorice)

My Doctor's Diagnosis: Analysis and Target

The serum Cosrx The Vitamin C 13 Serum is primarily intended for individuals seeking to address dull complexion, pigmentation spots, early signs of aging (wrinkles, fine lines), and lack of radiance. The Cosrx brand offers a formulation focused on correcting complexion and preventing skin aging, while respecting sensitive skin thanks to a synergy of soothing and antioxidant active ingredients. In my opinion, the formula is particularly suitable for skin prone to hyperpigmentation, oxidative stress, and loss of firmness.

Formula Analysis: Key Assets

Three major active ingredients stand out in this serum:

• Pure vitamin C (ascorbic acid) and 3-O-ethyl ascorbic acid These two forms of vitamin C work synergistically to stimulate collagen synthesis, reduce pigmentation spots, and protect the skin against free radicals. Their powerful antioxidant action helps to even out the complexion and prevent premature aging.
• Niacinamide This vitamin B3 strengthens the skin barrier, regulates sebum production, and improves skin radiance. It enhances the action of vitamin C while limiting irritation.
• Hyaluronic acid (sodium hyaluronate) It intensely moisturizes the skin, plumps fine lines, and optimizes serum tolerance, even on sensitive skin.

The presence of complementary antioxidants (glutathione, tocopherol) and soothing active ingredients (panthenol, allantoin) enhances the overall quality of the formula.

Tips and Application Ritual

I recommend applying this serum in the morning, on clean, dry skin, before moisturizer and sunscreen. It can also be used in the evening, but as vitamin C is photosensitive, sunscreen is essential during the day. This serum is compatible with hyaluronic acid, niacinamide, and peptides. I avoid combining it with powerful exfoliating active ingredients (AHAs/BHAs) or retinol at the same time to limit the risk of irritation.

My Final Verdict & Safety Opinion

Visit Cosrx The Vitamin C 13 Serum stands out for its balanced, effective, and well-tolerated formula, ideal for reviving the complexion's radiance and preventing the signs of aging. Its light texture makes it easy to absorb. One slight drawback: the presence of palm oil, which can be comedogenic on very oily skin. In conclusion, it is an excellent choice for those looking for a powerful and versatile antioxidant serum.

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