Isntree Hyper Niacinamide 20 Serum dropper bottle with a clear serum droplet suspended above it.

Hyper Niacinamide 20 Serum

This potent brightening serum combines a clinical-strength 20% Niacinamide with a supportive complex of Zinc PCA, Arbutin, and ten types of Hyaluronic Acid. It’s engineered to visibly address uneven tone, dullness, and dehydration, delivering a radiant, clarified complexion with a lightweight, fast-absorbing feel.
Infographic-style breakdown of serum's key ingredients: Niacinamide, Zinc PCA, Arbutin, and Hyaluronic Acid.

Advanced Formulation Design

The Hyper Niacinamide 20 Serum is meticulously formulated to deliver multiple skin benefits through a synergistic blend of high-performance actives and hydrators. Its design focuses on potency, efficacy, and a user-friendly texture for visible results.
Visible Brightening & Clarity

Achieve a Luminous, Even-Toned Complexion

Close-up of a glowing, dewy cheek reflecting soft light after applying serum.

Refined Texture & Sebum Balance

The high-concentration 20% Niacinamide works to visibly reduce the appearance of fine lines and control excess sebum, promoting a smoother, more refined skin texture over time.
Split-screen showing textured skin on left and smooth, bright skin on right.

Targeted Brightening & Tone Correction

Formulated with Arbutin and Zinc PCA, this serum actively helps to fade hyperpigmentation and dark spots, leading to a more uniform and radiant skin tone with consistent use.
Hand gently patting clear serum onto the back of the other hand, showing lightweight texture.

Multi-Layer Hydration Support

A blend of 10 types of Hyaluronic Acid delivers multi-depth hydration, plumping the skin from within for a supple, dewy finish that complements the brightening effects.
Tailored for Your Skin Goals

Perfect For These Skincare Scenarios

Close-up of a face with visible hyperpigmentation being treated, showing a before/after progression.
Uneven Tone

Correcting Hyperpigmentation

Ideal for those struggling with uneven skin tone, dark spots, or post-inflammatory marks who want a gentle yet high-potency solution for visible brightening and clarity.
Matte, shine-free forehead and nose area after serum application, showing balanced sebum.

Managing Oily & Combination Skin

Oily Skin
A go-to choice for oily or combination skin types seeking to balance sebum production, minimize the appearance of pores, and achieve a matte-yet-luminous finish without greasiness.
A simple, organized skincare shelf featuring the serum as the key multi-tasking product.
Minimalist Routine

Simplifying a Multi-Step Routine

Perfect for those incorporating proven, science-backed ingredients into a minimalist routine, seeking a multi-tasking serum that hydrates, brightens, and supports the skin barrier.
Hands applying serum to a face in a step-by-step routine sequence.
Simple Daily Application

How to Use for Best Results

Incorporate this high-performance serum into your routine with a consistent approach to maximize its brightening and texture-refining benefits. Follow these simple steps for optimal absorption and results.
Dropper dispensing 2-3 drops of clear serum onto clean fingertips.

Dispense the Correct Amount

After cleansing and toning, dispense 2-3 drops of the serum onto your fingertips. This amount is sufficient to cover the entire face and neck, ensuring even distribution of the active ingredients.
Fingertips gently patting serum onto a clean cheek for absorption.

Pat, Don't Rub, for Absorption

Gently pat the serum onto your face and neck, avoiding the immediate eye area. Patting motion enhances absorption into the skin’s surface layers better than rubbing, allowing the niacinamide and hyaluronic acid to penetrate effectively.
Layering moisturizer over the applied serum on the face.

Seal with Moisturizer and SPF

Allow the serum to fully absorb for about a minute until the skin feels smooth and slightly tacky. Then, follow up with your favorite moisturizer and, if applying in the morning, sunscreen to protect your brightened complexion.
GlowSeeker
GlowSeeker
I was hesitant about the high percentage, but this serum has been a game-changer for my dark spots. After about two months of consistent use, my complexion is visibly brighter and more even. It absorbs so well and hasn't caused any irritation, even on my sensitive skin.
SkincareRoutineFan
SkincareRoutineFan
On my second bottle now. It took time, but my skin texture has improved dramatically. I have combo skin, and it controls oil without drying. Breakouts are less frequent and heal faster. A little goes a long way, and the lightweight feel is perfect for layering.
MelaninRichBeauty
MelaninRichBeauty
As someone with hyperpigmentation, finding a gentle yet effective product is key. This serum has helped fade my stubborn marks, especially around my chin. The niacinamide is potent but never harsh. My skin looks clearer and more radiant, and I highly recommend it.
MinimalistSkincare
MinimalistSkincare
I appreciate the transparency in formulation. This serum does what it claims—my skin feels smoother, looks brighter, and the oil control is noticeable by midday. The absence of fragrance is a huge plus. It's become a reliable staple for my combination skin.
AcneScarJourney
AcneScarJourney
Started using this for post-acne marks and overall brightness. The texture is slightly oily but sinks in completely. After 5 months, my forehead scars have faded significantly. It's gentle enough for daily use and has helped balance my skin without causing new breakouts.
Real User Experiences

What Our Community Says

Real users share their experiences with the Hyper Niacinamide 20 Serum, detailing its impact on texture, tone, and overall skin clarity. Discover firsthand accounts of its gentle potency and visible results.

Your Questions, Answered

We understand you have questions about incorporating a high-potency serum into your routine. Here are clear, transparent answers based on the product’s formulation and user experiences to help you decide if it’s the right fit for your skincare goals.
Yes, this serum is designed for sensitive skin. While the 20% Niacinamide concentration is potent, user reports consistently note its gentle, non-irritating formula. It’s always wise to patch test first, but many with reactive skin use it successfully, often starting with fewer applications per week.
Visible improvements in skin texture and brightness can be noticed by some within the first few weeks. However, for more significant results like fading hyperpigmentation or fine lines, consistent use for at least 2 to 3 months is generally recommended, as skin cell turnover takes time.
Apply 2-3 drops to clean, toned skin in the morning and/or evening, gently patting it in until absorbed. Follow with your moisturizer. Due to its lightweight texture, it layers well under makeup and other skincare products without pilling.
Yes, it’s formulated to be compatible with other actives. However, when using multiple potent ingredients like AHAs, BHAs, or Vitamin C, monitor your skin’s response. A common approach is to use this serum in the morning and other actives at night, or alternate usage days.
The formula is fragrance-free and has a lightweight, slightly viscous texture that absorbs quickly into the skin without leaving a heavy or sticky residue. It leaves a smooth, comfortable, and slightly dewy finish.
While individual results vary, users report that it helps control excess oil and reduce the frequency of breakouts due to its sebum-regulating properties. The inclusion of Zinc PCA supports this action, and the gentle formula is suitable for acne-prone skin.
Complete Your Routine

Explore More Isntree Solutions

Your journey to a brighter, healthier complexion doesn’t stop here. Explore more from Isntree’s curated collections, designed to work in harmony with this serum to address your unique skincare needs and complete your routine.
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Isntree Sunscreen

Explore Isntree’s range of Hyaluronic Acid sunscreens, designed to merge sun protection with essential hydration. Compare formulas based on SPF strength, texture, and key ingredient benefits to find the daily defender that perfectly suits your skin’s needs and lifestyle.

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Isntree Sunscreen Stick

ISNTREE’s Hyaluronic Acid Airy Sun Stick provides quick, easy SPF reapplication with an airy, feather-light texture. Its hypoallergenic formula is enriched with 8 types of Hyaluronic Acid for deep hydration and a plumped-up effect, plus Ceramide for barrier support.

Hero product shot of the Isntree Hyaluronic Acid Watery Sun Gel tube against a soft blue background.

Isntree Hyaluronic Acid Watery Sun Gel

This is more than a sunscreen; it’s a hydrating treatment that protects. By fusing the intense moisture-binding power of hyaluronic acid with advanced broad-spectrum filters, it defends against daily environmental stress while leaving skin feeling soft, dewy, and cared for.

The ISNTREE Green Tea Fresh Toner bottle, the primary product hero, displayed against a soft, natural green background evoking freshness.

Isntree Green Tea Toner

The ISNTREE Green Tea Fresh Toner is a quintessential K-Beauty staple, harnessing the antioxidant power of Jeju Island green tea. It uniquely balances effective sebum control with deep, lightweight hydration, making it a must-have for achieving a clear, refreshed, and shine-free complexion without irritation.