ProtoClinical k-beauty Dr.Althea 15% Niacinamide Purity Serum 30ml shown as front-facing serum packaging in a vertical product photo on a light background
ProtoClinical k-beauty Dr.Althea 15% Niacinamide Purity Serum 30ml shown as front-facing serum packaging in a vertical product photo on a light background
ProtoClinical k-beauty Dr.Althea 15% Niacinamide Purity Serum 30ml shown as serum packaging in a square product photo on a light background
ProtoClinical k-beauty Dr.Althea 15% Niacinamide Purity Serum 30ml shown as front-facing serum packaging in a vertical product photo on a light background
ProtoClinical k-beauty Dr.Althea 15% Niacinamide Purity Serum 30ml shown as front-facing serum packaging in a vertical product photo on a light background
ProtoClinical k-beauty Dr.Althea 15% Niacinamide Purity Serum 30ml shown as front-facing serum packaging in a vertical product photo on a light background
Dr.Althea

Dr.Althea 15% Niacinamide Purity Serum 30ml

$24.89
Refines the look of pores Balances excess oil Brightens uneven tone Smooths rough texture Absorbs quickly without tack
Dr.Althea’s 15% Niacinamide Purity Serum contains 15% Niacinamide at a high concentration and provides effective brightening and pore care. With Zinc PCA to regulate sebum and oil and MELACUT complex to soothe the skin and improve the skin texture, our Purity Serum helps to improve the overall tone...
A light, high-strength serum for skin that looks oily, textured, or visibly uneven.
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15% Niacinamide Zinc PCA Support Pore + Tone Care
niacinamide zinc pca melacut complex
Dr.Althea 15% Niacinamide Purity Serum 30ml
Dr.Althea 15% Niacinamide Purity Serum 30ml Default Title
$24.89
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free
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niacinamide, zinc pca, and melacut complex

Niacinamide works at the junction between melanocytes and keratinocytes, intercepting melanin transfer before pigment reaches the visible surface. It simultaneously boosts ceramide synthesis to strengthen the lipid barrier, which is why consistent use addresses both discoloration and dehydration. In this serum, Niacinamide targets visible pores, delivering visibly brightens skin tone and fades uneven patches with consistent use.

Niacinamide 15%
intercepts melanin transfer to fade spots and refine pore texture from within
Zinc
calms inflammation and regulates sebum production for clearer, less oily skin
The texture

Lightweight, absorbing serum

Dr.Althea’s 15% Niacinamide Purity Serum contains 15% Niacinamide at a high concentration and provides effective brightening and pore care. With Zinc PCA to regulate sebum and oil and MELACUT complex to soothe the skin and improve the skin texture, our Purity Serum helps to improve the overall tone and condition of your skin.

With 15% Niacinamide, it helps to improve large pores and takes care of the skin tone. Zinc PCA serves as a natural moisturizing ingredient and helps with effective pore control, while MELACUT Complex, a manufacturer specialty complex containing 4 main ingredients, helps to soothe the skin and helps with skin tone brightening. It is a refreshing, light and non sticky serum that absorbs quickly into the skin and helps to improve the skin’s condition, tone and texture, in a gentle, sensitive skin safe formula. 

 

Sensitive Skin visible pores excess oil uneven tone rough texture
Hover the swatch: it ripples like water

How to use

1

Apply after toner to clean skin.

2

Smooth 2 to 3 drops over the face and neck.

3

Pat gently until absorbed.

4

Follow with moisturizer.

5

Use morning and night.

Full transparency

Ingredients

Niacinamide, Zinc PCA, and Melacut Complex focus on pore appearance, oil balance, and smoother-looking tone.

High-strength niacinamide is often used when the goal is to work on several surface concerns at once: visible pores, uneven tone, rough texture, and excess oil. At 15 percent, niacinamide becomes the main driver of the formula, while Zinc PCA adds support for a fresher, less shiny finish. Soothing complexes matter here because stronger balancing formulas are easier to use consistently when they do not leave skin feeling over-dried. In serum form, this product is meant to absorb quickly and fit into daily pore-and-tone routines without heaviness. The expected outcome is a complexion that looks cleaner, more even, and less oily over time, with a smoother surface and better visible clarity. Consistent use matters more than intensity in formulas like this. The expected result is a steadier improvement in comfort, balance, texture, and overall appearance with regular application, not a dramatic overnight change. That keeps the product positioned as supportive daily care rather than an exaggerated treatment or medical-style claim.

The detail

Specs & details

FormatLightweight serum
SizeDefault Title
Skin typesSensitive Skin
Country of originSouth Korea
Before you add to cart

Questions & answers

After cleansing and toning, before moisturizer. Serums deliver actives most effectively on freshly prepped skin.
Yes. Apply from thinnest to thickest consistency and allow each layer to absorb before the next.
Most users notice initial improvement within 2 to 4 weeks. For full benefits like visibly brightens skin tone and fades uneven patches, allow 6 to 8 weeks of consistent use.
Your skin begins adjusting. You may notice improved hydration and comfort before more visible changes like texture refinement become apparent.
Yes, this formula is developed to be compatible with sensitive skin dealing with visible pores. If you have very reactive skin, patch test on the inner arm before full application.
The formula is designed to be well-tolerated. For pregnancy-specific concerns, consult your healthcare provider. For sensitive skin, patch test before full application.
Niacinamide intercepts melanin transfer to fade spots and refine pore texture from within. Consistent daily use is key to seeing the full benefits.
Check the INCI list for the most accurate information on fragrance components. The formula is developed for minimal irritation potential.
Store in a cool, dry place away from direct sunlight. Use within 12 months of opening for optimal freshness and efficacy.
Serums have a higher concentration of targeted actives than essences and a lighter consistency than most ampoules. They deliver the most potent treatment in your routine.
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Dr.Althea
About the brand

OriginSeoul, KR
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