Cosrx The Vitamin C 13 Serum – 20ml

Why Vitamin C is Essential in Skincare

Vitamin C 13 Serum is specially formulated to target dullness, dark spots, acne scars, and uneven skin tone. Vitamin C is a potent antioxidant that brightens the skin, neutralizes free radicals, and supports collagen synthesis, which helps reduce the appearance of fine lines and improves elasticity. Maintaining a consistent Vitamin C routine is crucial for a radiant, youthful, and healthy complexion.

Unlike other Vitamin C serums that can be harsh or irritating, this low-irritation formula is suitable for daily use, even on sensitive skin, ensuring that your skin receives gentle, effective protection against environmental stressors.

Available now at SkinCharm BD — 100% authentic Korean skincare in Bangladesh.

Key Benefits of Vitamin C Serum

• Fades dark spots, hyperpigmentation, and acne scars

• Brightens dull and tired skin

• Boosts collagen production for firmer, plump skin

• Protects against free radicals and environmental damage

• Reduces fine lines and signs of aging

• Lightweight, fast-absorbing, and non-sticky

This serum is ideal for anyone looking to restore skin radiance while addressing early signs of aging and post-acne pigmentation.

Active Ingredients & Their Role

Vitamin C 13% (Ascorbic Acid Derivative)

• Main brightening ingredient

• Reduces dark spots and evens skin tone

• Enhances collagen synthesis for firmer skin

Niacinamide

• Strengthens the skin barrier

• Controls excess oil and prevents breakouts

• Enhances skin radiance and smoothness

Sodium Hyaluronate

• Provides deep hydration

• Improves moisture retention and skin plumpness

Panthenol & Adenosine

• Soothes irritated skin

• Reduces signs of stress and premature aging

Who Should Use it

• Dull or uneven skin tone

• Skin with dark spots or acne scars

• Early signs of aging (fine lines & wrinkles)

• Oily, combination, or sensitive skin types

• Anyone looking to brighten skin naturally

How to Use 

1. Cleanse your face with a gentle cleanser

2. Apply toner (optional)

3. Dispense 2–3 drops of the serum on your face

4. Gently pat until fully absorbed

5. Follow with moisturizer

6. Apply sunscreen during the day

Tip: Introduce gradually if you have sensitive skin. Start with every other day, then increase to daily use.

Recommended Skincare Routine With this

Morning Routine

1. Cleanser (e.g., Cosrx Low pH Good Morning Gel Cleanser)

2. Toner

3. Cosrx The Vitamin C 13 Serum

4. Moisturizer

5. SPF 50+ sunscreen

Night Routine

1. Cleanser

2. Toner

3. Cosrx c13 Serum

4. Night moisturizer or sleeping mask

Pairing Vitamin C serum with sunscreen ensures maximum brightening and anti-aging benefits while preventing dark spot formation.

Visible Result Timeline

Consistency is key for achieving the full benefits of it

These products enhance the effectiveness of your Vitamin C serum and ensure a balanced, bright, and protected complexion.

Why Choose Cosrx The Vitamin C 13 Serum?

• Dermatologist-recommended low-irritation formula

• 13% Vitamin C for effective brightening

• Lightweight and fast-absorbing

• Maintains skin hydration and barrier

• Reduces dark spots, fine lines, and acne marks

• Suitable for all skin types

📦 Product Information

🧪 Key Features & Specifications

• Contains 13% pure Ascorbic Acid (Vitamin C) — a potent concentration for brightening and pigmentation improvement. COSRX Official+1

• Also includes stable derivatives such as 3‑O‑Ethyl Ascorbic Acid for enhanced stability and efficacy. Medpak+1

• Moisturising & soothing agents: Hyaluronic Acid, Allantoin and Panthenol help hydrate and calm the skin. COSRX Official+1

• Packaging & texture: It comes in a lightweight “water‑based gel/se­rum” texture, absorbs quickly, non‑sticky, slightly yellowish tint due to the Ascorbic Acid. COSRX Official+1

• Target concerns: Hyper‑pigmentation, dullness, uneven tone, early signs of ageing. Saffron+1

📦 More Product Info

• Size: 20 ml (≈ 0.67 fl.oz) according to official website. COSRX Official+1

• Origin: Republic of Korea. k-beautyhub.com

• Usage: Daily use (morning recommended with sunscreen). olyvare.com+1

🔍 Ingredient Highlights & Notes

• Ascorbic Acid (13%): This is the active form of Vitamin C. It’s effective for brightening, antioxidant protection, collagen support. INCIDecoder+1

• Tocotrienols (Super Vitamin E): Works with Vitamin C to provide increased antioxidant defence. Cosmehut

• Hyaluronic Acid & Allantoin: Provide hydration and soothing benefits, which helps reduce potential irritation from Vitamin C. Medpak

• Niacinamide, Licorice Root Extract, Glutathione: Additional brightening/anti‑oxidant/supporting ingredients. Korean Beauty Point+1

✅ Who It’s Especially Good For

• Those with dull skin tone, who want to look brighter and more radiant

• People with dark spots, pigmentation marks, acne scars

• Those with normal, oily or combination skin looking for a lightweight serum

• Users who use daily sunscreen and want to boost skin’s brightness & anti‑oxidation