NINE LESS B-Boost 1% Kojic Acid Serum
NINE LESS B-Boost 1% Kojic Acid Serum

NINE LESS B-Boost 1% Kojic Acid Serum

🇰🇷 South Korea

€17,95 Best Sellers
size: 30 ml

The NINE LESS B-Boost 1% Kojic Acid Serum is a precision-focused brightening treatment created for skin that struggles with dark spots, stubborn pigmentation, acne marks, and uneven tone. Instead of relying on one single brightening agent, this formula uses a layered, multi-pathway approach to discoloration—targeting melanin formation, pigment transfer, inflammation triggers, and post-spot dullness all at once.

At the heart of the formula lies 1% Kojic Acid, a well-known depigmenting active that works by inhibiting tyrosinase, the key enzyme responsible for melanin production. This makes it especially effective for sun spots, post-acne marks, and uneven tone caused by UV exposure or hormonal changes. Unlike harsh spot treatments, this serum is designed to be used consistently, thanks to its carefully balanced supporting ingredients.

To reinforce and stabilize the brightening effect, the serum is enriched with a high-strength 10% Niacinamide complex, helping regulate excess melanin transfer while simultaneously improving skin texture, pore appearance, and barrier resilience. This dual action means the skin doesn’t just look brighter—it becomes stronger, smoother, and more balanced over time.

The formula is further elevated with 2% Tranexamic Acid, an advanced pigment-control ingredient widely used in dermatological treatments for melasma and discoloration. Tranexamic Acid works on inflammatory pathways that often trigger recurring pigmentation, making this serum especially suitable for persistent or recurring dark spots rather than surface-level dullness alone.

To ensure the skin remains calm and comfortable during brightening treatment, 2% Panthenol (Vitamin B5) is added to deeply hydrate, soothe, and support the skin barrier. This makes the serum suitable even for users who are new to pigmentation care or who want visible results without dryness or tightness.

For radiance and antioxidant support, the serum includes Ascorbyl Glucoside (a stable Vitamin C derivative) and Glutathione, working together to enhance luminosity, neutralize oxidative stress, and promote a clearer, healthier glow. Over time, this combination helps skin appear more translucent, refined, and evenly lit from within.

The texture is light, fluid, and fast-absorbing, leaving no stickiness or residue. It layers effortlessly under moisturizers and sunscreens, making it ideal for both morning and evening routines. Whether used as a full-face tone-correcting serum or as a targeted treatment on pigmented areas, it integrates seamlessly into any skincare routine.

This serum is best suited for those who want visible brightening results with a formula that respects skin balance, making it a powerful yet refined choice within a results-driven skincare routine.

Think of it as your daily precision tool for clearer tone, refined radiance, and confident skin—without compromise.


Key Ingredients

Indicates the concentration of each ingredient in the formula.

Niacinamide

10%

Tranexamic Acid

2%

Panthenol (Vitamin B5)

2%

Ascorbyl Glucoside (Vitamin C)

1%

Kojic Acid

1%

NINE LESS B-Boost 1% Kojic ...

30 ml

€17,95

Easy 4 steps to use

Kojic Acid Serum

Step 1

Prep with Toner

Start with a clean face and apply your favorite toner to balance your skin and boost absorption.

Step 2

Dispense the Serum

Apply 2–3 drops of the serum into your palm or directly onto your face using clean hands.

Step 3

Apply Gently

Pat the serum evenly over your face and neck. Use fingertips to press it into your skin—no rubbing!

Step 4

Let It Absorb

Wait a few seconds for the serum to fully absorb before applying your moisturizer or sunscreen.

Targeted Brightening, Balanced Skin

A precision-driven brightening serum designed to visibly reduce dark spots and uneven tone while keeping the skin calm, hydrated, and resilient. Powered by Kojic Acid and a multi-brightening complex for daily tone-correcting care.

Radiance Boost

Enhances natural glow for brighter-looking skin.

Enhances natural glow for brighter-looking skin.

dark-spot

1% Kojic Acid Power

Targets melanin formation to support pigmentation control.

Targets melanin formation to support pigmentation control.

Barrier Strengthening

Supports the skin barrier during active brightening care.

Supports the skin barrier during active brightening care.

Daily Use Friendly

Designed for consistent morning and evening routines.

Designed for consistent morning and evening routines.

Alcohol-Free

Gentle formulation suitable for long-term use.

Gentle formulation suitable for long-term use.

Hydration Balance

Maintains comfortable hydration without heaviness.

Maintains comfortable hydration without heaviness.

Before
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After
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Visible Tone Transformation

With consistent use, skin appears clearer, more even, and visibly brighter. Dark spots and uneven tone gradually look softened, while the complexion feels calmer, smoother, and more refined over time.

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Brighten by Day, Correct by Care

After targeting dark spots and uneven tone with your brightening serum, lock in results with daily high-protection sun care. This pairing helps prevent pigmentation from returning while supporting a clearer, more even-looking complexion over time.