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KOSHINÉ KT-939 Brightening Duo | Anti-Hyperpigmentation & Even Skin Tone
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:
- Apply 2–3 pumps of serum to cleansed skin
- Follow with lotion
- 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
Why Choose This Duo?
【Smart Investment】
① Synergistic Effectiveness:
Serum blocks melanin production, lotion locks in the benefits
② Cost-Effective:
More affordable than purchasing separately
③ Complete Regimen:
An all-in-one solution for brighter, more even skin
④ Safety Guaranteed:
Rigorously tested for efficacy and safety
Ingredient Spotlight【Precision-Formulated Actives】
● KT-939 (0.2%):
Patented brightening agent
Effectively inhibits melanin production
Clinically proven brightening efficacy
● Penetration Boosters:
Ethoxydiglycol: Enhances absorption and delivery of active ingredients
● Hydration Matrix:
Glycerin: A powerful humectant that attracts moisture
Butylene Glycol: Small molecule moisturizer for deep hydration
Glyceryl Glucoside: Activates skin’s natural water channels
● Supporting Ingredients:
Citric Acid: Gently exfoliates and refines skin texture
Xylitol: Skin-identical humectant that restores moisture
Usage Protocol【Professional Routine】
AM Routine:
1.Cleanse your face
2.Apply 2-3 pumps serum to the face
3.Focus on areas with pigmentation
4.Follow with the lotion
5.Always finish with sunscreen