Klairs vs iUNIK: Which Korean Vitamin C Serum Is Best for Brightening?

If you’re aiming for a more even skin tone, fewer dark spots, and a healthy glow, vitamin C serums are a must-have. Two top-rated K-beauty serums are:

• Klairs Freshly Juiced Vitamin C Serum

• iUNIK Propolis Vitamin Synergy Serum

Both are gentle enough for daily use and ideal for sensitive skin — but they serve slightly different purposes. Let’s compare these two K-beauty favorites and help you pick the best one for your skin goals.

🍋 Klairs Freshly Juiced Vitamin C Serum

• 🌿 Key Ingredients: 5% pure Vitamin C (Ascorbic Acid), Centella Asiatica, Yuzu

• 💧 Texture: Slightly oily serum

• ✨ Best For: Brightening dark spots, hyperpigmentation, dull skin

• 🔍 Skin Type: All skin types, especially beginner or sensitive

• 🌸 Fragrance: Fragrance-free

• 📌 Highlight: Low-irritation formula with visible glow results

🔗 Buy on Amazon

🐝 iUNIK Propolis Vitamin Synergy Serum

• 🌿 Key Ingredients: 70% Propolis Extract, 12% Hippophae Rhamnoides (Sea Buckthorn/Vitamin C)

• 💧 Texture: Light, non-sticky gel-serum

• ✨ Best For: Soothing, nourishing, and mild brightening

• 🔍 Skin Type: Dry, sensitive, or irritated skin

• 🌸 Fragrance: Fragrance-free

• 📌 Highlight: Combines anti-inflammatory and antioxidant benefits

🔗 Buy on Amazon

🍯 What Is Propolis and Why Is It Good for Skin?

Propolis is a resin-like substance made by bees to protect their hives. In skincare, it’s known for its anti-inflammatory, antibacterial, and healing properties.

It helps:

• Calm redness and irritation

• Boost skin barrier repair

• Hydrate and nourish dry or damaged skin

That’s why propolis is a popular ingredient in K-beauty — especially for sensitive and acne-prone skin.

📊 Side-by-Side Comparison

Feature	Klairs Vitamin C Serum	iUNIK Propolis Serum
💧 Texture	Slightly oily	Lightweight gel
🌿 Star Ingredient	5% Vitamin C (Ascorbic Acid)	70% Propolis + Sea Buckthorn (Vit C)
🎯 Main Benefits	Brightening, fade dark spots	Soothing, hydrating, mild glow
🌸 Fragrance-Free	Yes	Yes
🔍 Best for Skin	All types, especially dull skin	Dry, sensitive, inflamed skin
🛒 Buy Link	Amazon	Amazon

💡 Which One Should You Choose?

• ✅ Choose Klairs Freshly Juiced Serum if:

  • You want to target pigmentation, spots, or dull tone

  • You’re just starting with vitamin C

  • You want noticeable brightening results

• ✅ Choose iUNIK Propolis Vitamin Serum if:

  • Your skin is dry, reactive, or acne-prone

  • You prefer a calming, nourishing serum

  • You want a gentler, antioxidant-based glow

✅ Final Verdict

• Klairs = for glow-seekers focused on brightening and correcting

• iUNIK = for sensitive users focused on soothing and strengthening

Both serums are budget-friendly, beginner-safe, and a great addition to your Korean skincare routine.

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