Cosrx The Vitamin C 23 Serum – 0.67fl.oz/20ml | Brightening & Hydrating Facial Serum

COSRX The Vitamin C 23 Serum is a high-potency brightening and anti-ageing facial serum designed to visibly improve dull, uneven skin. It is carefully formulated with 23% pure vitamin C (ascorbic acid), a powerful antioxidant known for brightening the complexion, fading dark spots, and reducing the appearance of fine lines and wrinkles. To enhance stability and effectiveness, the formula is enriched with vitamin E, which boosts antioxidant protection and supports skin barrier health. Hyaluronic acid is added to deliver deep hydration, helping maintain skin moisture and reduce the risk of dryness commonly associated with strong vitamin C formulas.

The lightweight yet concentrated serum works by promoting a more even skin tone, improving skin texture, and restoring natural radiance with consistent use. Its balanced formulation helps minimise irritation while still delivering visible results, making it suitable for normal, dry, combination, and mature skin types. It is especially beneficial for those dealing with dullness, hyperpigmentation, uneven tone, and early signs of ageing. The serum absorbs quickly into the skin, allowing active ingredients to work effectively without leaving a heavy or sticky residue. Designed for results-driven skincare routines, COSRX The Vitamin C 23 Serum helps reveal a brighter, smoother, and more youthful-looking complexion over time.

How to Use:

1. Patch Test: Perform a patch test before first use to check for sensitivity.
2. Cleanse and Tone: Start with a clean and toned face.
3. Apply Serum: Apply a few drops of the serum to your face.
4. Gently Pat In: Gently pat the serum into your skin until fully absorbed.
5. Follow with Moisturizer: Follow with a moisturizer to lock in hydration.
6. Use Sunscreen: Always use sunscreen during the day when using vitamin C products.

Caution: Because of its high vitamin C content, a patch test is recommended before usage, particularly for those with sensitive skin. Mild tingling may occur initially; stop using if irritation continues. Avoid using with powerful exfoliants or retinoids in the same routine, and always wear sunscreen during the day because vitamin C might exacerbate sun sensitivity. To maintain freshness and efficacy, store the serum in a cold, dark area with the bottle well closed.