Cosrx The Vitamin C 13 Serum 20 ml

COSRX The Vitamin C 13 Serum 20ml | Premium 13% Pure Vitamin C (L-Ascorbic Acid), Tocotrienol & Hyaluronic Acid Brightening Serum | 100% Original Made in Korea

Product Overview & Benefits

Fading dark spots, sun discoloration, and post-acne marks under a warm, high-humidity tropical climate like Bangladesh requires daily active antioxidant protection that brightens skin without causing irritation or heavy oiliness. High solar radiation, environmental pollution, and humidity accelerate oxidative stress on skin tissue, resulting in stubborn hyperpigmentation, sallow dullness, and early fine lines. COSRX The Vitamin C 13 Serum addresses these core concerns by delivering a stabilized 13% pure Vitamin C dose tailored for daily barrier-friendly use.

What lifts this brightening serum to an elite tier is its bio-available Super Vitamin Brightening & Barrier Architecture:

1. 13% Pure Vitamin C (L-Ascorbic Acid): A clinically balanced concentration of pure Vitamin C that inhibits melanin production, lightens post-breakout dark marks, and stimulates structural collagen synthesis.
2. Super Vitamin E (Tocotrienol): Up to 50 times more effective than standard Vitamin E, Tocotrienol works in synergy with Vitamin C to neutralize free radicals, speed up tissue recovery, and stabilize the formula.
3. Hyaluronic Acid & Allantoin: Deeply hydrates thirsty cell tracks, calms skin sensitivity, and buffers against potential tingling, making it ideal for Vitamin C beginners and sensitive skin types.

Dermatologically tested and non-comedogenic, this liquid serum absorbs cleanly into facial contours without leaving a heavy, sticky, or greasy residue.

Shop original COSRX products in Bangladesh at thealoy.com, your trusted destination for authentic original Korean skincare and haircare products in Bangladesh with nationwide delivery.

Skin Type Suitability

• Hyperpigmentation & Post-Acne Dark Marks: 13% Pure Vitamin C targets dark spots, acne scars, and uneven skin tone boundaries.
• Dull & Sallow Complexions: Restores natural skin radiance, clarity, and a healthy glass-skin glow.
• Vitamin C Beginners & Sensitive Skins: Formulated at a gentle 13% concentration to minimize skin irritation or stinging.
• Normal, Combination & Oily Skins: Fast-absorbing watery fluid texture that hydrates without clogging pores or feeling greasy.

Who Is This Product For

• Ideal for individuals seeking a daily gentle Vitamin C serum to target dark spots, sun damage, and dullness.
• Perfect for skincare buyers looking for a stabilized, fast-absorbing antioxidant serum for morning routines.
• Highly recommended for users dealing with post-breakout discoloration, rough skin micro-texture, or loss of radiance.
• Excellent for anyone wanting an authentic, laboratory-tested Korean serum to maintain a bright, even glass-skin base.

Who Should Avoid This Product

• Avoid using this product if you have a documented clinical allergy to L-Ascorbic Acid (Pure Vitamin C), Tocopherol/Tocotrienol, or specific raw components listed in the ingredients.
• Do not apply the serum directly across open bleeding cuts, severe weeping eczema flares, or raw unhealed skin lesions.

What Skin Concerns Does It Help Address

• Post-Acne Dark Spots (PIH/PIE): Pure Vitamin C inhibits melanin pathways to fade dark post-breakout marks.
• Sallow Dullness & Loss of Radiance: Tocotrienol and L-Ascorbic Acid clear signs of fatigue and boost natural glow.
• Uneven Skin Tone: Unifies tone boundaries across cheeks, forehead, and jawline.
• Early Fine Lines & Loss of Bounce: Stimulates structural collagen synthesis to improve skin firmness.
• Free-Radical Environmental Stress: Powerful antioxidant synergy shields fragile skin matrices against daily urban pollution.

Expected Skincare Results Timeline

• Immediate (First Few Applications): Post-cleansing dullness vanishes instantly. The face feels deeply hydrated, fresh, and smooth with zero heavy residue.
• Within 14 Days: Surface micro-roughness feels noticeably smoother, overall skin radiance improves, and post-breakout redness cools down.
• After 4 Weeks: Dark spots and hyperpigmentation look visibly lighter, skin tone clarity improves, and the complexion maintains a clear glass-skin glow.

Note: Results are not guaranteed and may vary depending on skin type, barrier condition, environmental factors, and consistency of use.

How To Use

Using your Vitamin C serum correctly ensures maximum antioxidant potency, stabilization, and skin safety.

Step-by-Step Application

1. Cleanse your face thoroughly using a gentle, barrier-friendly wash.
2. Apply your daily hydrating toner and allow it to absorb fully.
3. Shake the bottle gently 1 to 2 times before opening.
4. Dispense 2 to 3 drops of COSRX The Vitamin C 13 Serum directly onto clean fingertips or cheeks.
5. Smooth evenly across your face and neck, then gently pat until absorbed into skin pathways.
6. Follow with moisturizer and mandatory broad-spectrum sunscreen during daytime routines.

Daily Skincare Pro-Tip, Storage & Sun Protection

• Refrigeration Storage: Pure Vitamin C (L-Ascorbic Acid) is sensitive to heat and light. Always store this bottle inside the refrigerator after opening to keep the serum fresh and prevent oxidation.
• Mandatory Daytime Sunscreen: Antioxidants like Vitamin C work best when paired with sun protection—always apply a broad-spectrum sunscreen (SPF 30 or higher) every morning during use.

Ingredient Breakdown

• L-Ascorbic Acid (13% Pure Vitamin C): High-purity antioxidant active that brightens dark spots, boosts collagen, and unifies tone.
• Tocotrienol (Super Vitamin E): High-potency Vitamin E derivative that enhances Vitamin C efficacy and neutralizes free radicals.
• Sodium Hyaluronate: Master humectant that draws water deep into cell layers to keep skin plump and hydrated.
• Allantoin & Squalane: Soothe surface irritation, protect delicate skin tissue, and prevent moisture loss.
• Caffeine: Helps energize tired skin and refine skin surface appearance.

About COSRX

COSRX is an internationally acclaimed South Korean dermo-cosmetic brand celebrated globally for formulating minimalist, result-oriented skincare backed by scientific testing. Renowned for flagship lines like Snail Mucin, Centella, and The RX Vitamin Serums, COSRX delivers high-efficacy, hypoallergenic products designed to soothe, protect, and restore skin health.

• Country of Origin: South Korea

Authenticity & Quality Assurance

When purchasing imported Korean skincare and active treatments, verifying absolute product authenticity is essential to protect your skin barrier and ensure reliable results.

We source our products from trusted and reliable sources to ensure authenticity, quality, and customer confidence.

At thealoy.com, every item in our selection undergoes strict quality checks through a secure supply chain to guarantee its true origin. Whether you are searching for an authentic skincare shop in Bangladesh, purchasing original skincare products online Bangladesh, or looking for dermatologist recommended skincare BD options, thealoy.com delivers an elite, fully certified shopping experience.

Frequently Asked Questions

Why should I store COSRX The Vitamin C 13 Serum in the refrigerator? Pure L-Ascorbic Acid can oxidize quickly when exposed to ambient heat and sunlight. Keeping it inside the refrigerator preserves its potency, delays oxidation (yellowing), and provides a cooling effect during application.

Can I use COSRX The Vitamin C 13 Serum every day? Yes. The 13% concentration is formulated to be mild enough for daily morning application. If you have hyper-sensitive skin, start by applying every other day and gradually increase to daily use.

Can I use this serum alongside AHA, BHA, or Retinol? To avoid barrier over-exfoliation, it is best to separate active steps—use COSRX Vitamin C 13 Serum during your morning routine and save AHA/BHA or Retinol for your evening routine.

Is this serum suitable for active acne or oily skin? Yes. Its lightweight fluid texture absorbs rapidly into skin tracks without clogging pores, while Vitamin C helps clear post-acne dark marks.

Where can I buy the original 20ml COSRX The Vitamin C 13 Serum in Bangladesh? You can purchase the 100% genuine COSRX The Vitamin C 13 Serum 20ml directly from our verified storefront at thealoy.com, featuring secure protective packaging and reliable nationwide delivery.

Safety Information

For external cosmetic use only. Avoid direct contact with internal eye sockets or mouth line; if accidental contact occurs, rinse immediately with clean, cool water. Always apply sunscreen during daytime use. Discontinue use if abnormal irritation, excessive burning, or red localized allergic rashes develop, and consult a dermatologist. Store in a cool place (preferably inside the refrigerator) away from direct sunlight and high heat. Keep out of reach of children.