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How to Use:

1. Cleanse: Start with a thoroughly cleansed face to ensure the serum can penetrate deeply.
2. Tone: After cleansing, apply your toner to prepare the skin and balance its pH.
3. Apply Serum: Take 2-3 drops of the COSRX The Vitamin C 23 Serum and apply it evenly across your face, focusing on areas with dark spots, hyperpigmentation, or uneven skin tone. Avoid the eye area.
4. Pat Gently: Use your fingertips to gently pat the serum into your skin until fully absorbed.
5. Follow with Moisturizer: Once the serum has absorbed, follow with your favorite moisturizer to lock in hydration and maximize the serum’s effectiveness.
6. Use SPF in the Morning: Always apply sunscreen with at least SPF 30 during the day, as Vitamin C can make your skin more sensitive to the sun.
7. Introduce Gradually: If you are new to Vitamin C or using a high concentration like 23%, it’s recommended to introduce the product gradually. Start by using it every other day and then increase to daily use as your skin builds tolerance.

Note: You may experience slight tingling when first using the product, which is normal due to the high concentration of Vitamin C. If you have sensitive skin, mix the serum with a hydrating serum or moisturizer to reduce the intensity.

Benefits:

• Brightens and Evens Skin Tone: The 23% Vitamin C concentration effectively reduces hyperpigmentation, dark spots, and uneven skin tone, giving the skin a brighter, more luminous appearance.
• Fades Dark Spots and Acne Scars: Over time, regular use helps fade post-inflammatory hyperpigmentation (acne scars), sun spots, and age spots, resulting in a clearer complexion.
• Antioxidant Protection: Both Vitamin C and Super Vitamin E (Tocotrienol) work together to neutralize free radicals and protect the skin from environmental damage, such as UV rays and pollution, which contribute to premature aging.
• Boosts Collagen Production: Vitamin C is known to stimulate collagen synthesis, which helps to reduce the appearance of fine lines and wrinkles, improve skin elasticity, and promote firmer, smoother skin.
• Hydrates and Plumps: With Hyaluronic Acid and Panthenol, the serum hydrates the skin deeply, ensuring it remains plump and supple, reducing the appearance of dryness and fine lines.
• Soothes and Calms: Allantoin and Panthenol provide soothing and calming effects, making the serum suitable for sensitive skin by reducing potential irritation from the high Vitamin C concentration.
• Non-Sticky, Lightweight Formula: Despite its potent ingredients, the serum has a lightweight texture that absorbs quickly into the skin without leaving a sticky or greasy residue.

Who Should Use It:

• Dull or Uneven Skin: If your skin looks dull or uneven in tone, this serum is ideal for brightening and revitalizing the complexion.
• Hyperpigmentation and Dark Spots: The serum’s high Vitamin C concentration targets pigmentation, making it ideal for those struggling with sun spots, acne scars, or age spots.
• Aging or Mature Skin: With its collagen-boosting properties, this serum is excellent for mature skin or anyone experiencing early signs of aging, such as fine lines and loss of elasticity.
• Sensitive Skin: Though powerful, the serum is formulated with soothing ingredients like Allantoin and Panthenol, making it safe for sensitive skin when introduced gradually.

Final Thoughts:

The COSRX The Vitamin C 23 Serum (20ml) is an effective, potent brightening serum that tackles a wide range of skin concerns, from hyperpigmentation to aging. With 23% pure Vitamin C, Super Vitamin E, and Hyaluronic Acid, it offers both immediate and long-term benefits by brightening the complexion, fading dark spots, and providing antioxidant protection. The serum’s lightweight, non-irritating formula makes it suitable for a wide range of skin types, including sensitive skin, though it should be introduced gradually. Regular use of this serum will leave your skin looking more radiant, youthful, and even-toned, with a significant improvement in the appearance of fine lines, pigmentation, and dullness.