COSME BESTSELLER-Yunth Fresh Vitamin C Boosting Serum 28 Days Pure Vitamin C Ampoule for Pores & Brightening (No Alcohol)

Yunth Fresh Vitamin C Boosting Serum is a highly popular Japanese intensive treatment designed to deliver fresh, pure Vitamin C (ascorbic acid) directly to the skin. Each dose is individually packaged to maintain maximum potency and stability.

This “導入美容液” (booster serum) is used immediately after cleansing to enhance the absorption of subsequent skincare while targeting pores, dullness, uneven tone, and early signs of aging.

Thanks to its fresh single-use format, the serum ensures maximum effectiveness of Vitamin C without oxidation, helping achieve clearer, smoother, and brighter skin.

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Key Features

• Fresh, single-use ampoules (28-day treatment)
• Contains pure Vitamin C (ascorbic acid)
• Targets pores, dullness, and uneven texture
• Boosts absorption of skincare applied afterward
• Lightweight, fast-absorbing formula
• Suitable for daily use

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Key Active Ingredients & Their Effects

Ascorbic Acid (Pure Vitamin C)
A powerful antioxidant that brightens skin, reduces pigmentation, improves pores, and stimulates collagen production.

Propylene Glycol
Enhances penetration of active ingredients and improves skin hydration.

👉 Minimalistic formula ensures high efficacy and stability of Vitamin C.

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Ingredients (INCI)

Ascorbic Acid, Propylene Glycol

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How to Use

Use immediately after cleansing.

Open one ampoule and apply the entire contents to the face.

Gently pat until absorbed.

Follow with lotion, serum, and cream.

Use one ampoule daily (morning or evening).

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Product Details

Weight: 28 ampoules (28-day treatment)
Product type: Booster serum / ampoule
Skin type: All skin types
Consistency: Lightweight liquid
Fragrance: Fragrance-free
Artificial colors: None
Alcohol (ethanol): Alcohol-free
Country of Origin: Japan

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Manufacturer Precautions

Use immediately after opening.

Do not store opened ampoules.

Avoid contact with eyes.

Discontinue use if irritation occurs.

Store in a cool, dry place away from direct sunlight.

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Important Notice

This product is ordered specifically at the customer’s request. Preparation and shipping may take longer than usual.

After placing the order, cancellation is not possible because the product is purchased from the supplier immediately.

Important Note
This product is available upon customer request, which may extend the shipping time. If it becomes unavailable from the manufacturer, it may be canceled from your order.