KOSHINÉ KT-939 Brightening Duo | Anti-Hyperpigmentation & Even Skin Tone Suitable for Men and Women

Product Description

Key Benefits

• KT939™ Patented Formula – A next-gen tyrosinase inhibitor to reduce melanin at the source
• Clinically Proven – 4x brighter than Thiamidol, 100x than 577, 300x than 377
• Gentle Yet Powerful – Dermatologist-tested for sensitive skin
• Hydration Boost – Glycerin + Butylene Glycol + Xylitylglucoside for lasting moisture

Duo Synergy

KT-939 Brightening Serum (30ml)

• Targets melanin production
• Lightweight, fast-absorbing
• Enhanced penetration with Ethoxydiglycol

KT-939 Brightening Lotion (60ml)

• Locks in serum benefits
• Smooths, hydrates & mildly exfoliates
• Non-greasy, quick absorption

Hero Ingredients

• KT-939 (0.2%) – Advanced brightening compound
• Ethoxydiglycol – Boosts ingredient delivery
• Glycerin, Butylene Glycol, Xylitylglucoside – Deep hydration
• Citric Acid – Gentle resurfacing

 Best For

• Dark spots, post-acne marks, sun spots, dullness
• Uneven tone & sensitive skin

How to Use

AM routine:

1. Apply 2–3 pumps of serum to cleansed skin
2. Follow with lotion
3. Finish with SPF

Why Choose This Duo?

• Boosted results: serum + lotion synergy
• Gentle, non-irritating brightening
• Ideal for daily use
• Safe & effective for sensitive skin