ProtoClinical k-beauty Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml dark green serum bottle with matching box side by side on a white background
ProtoClinical k-beauty Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml dark green serum bottle with matching box side by side on a white background
ProtoClinical k-beauty Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml single upright dark green serum bottle centered on a clean white background
ProtoClinical k-beauty Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml single upright dark green serum bottle centered on a clean white background
Cos De BAHA

Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml

$13.10
Helps minimize visible pores Balances excess oil Brightens uneven-looking tone Supports smoother texture Hydrates without heaviness
This serum is formulated with 20% niacinamide and 4% zinc to shrink pores and even skin tone, hyaluronic acid to hydrate skin and Vitamin B3 to protect it from UV light. Formula is suitable for sensitive skin. This NZ Niacinamide 20 Zinc PCA 4 Serum contains 20% Niacinamide...
A clarity-focused serum for skin that wants stronger oil control without giving up moisture.
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20% Niacinamide 4% Zinc PCA Pore-Balancing Serum
niacinamide 20% zinc PCA 4% hyaluronic acid
Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml
Cos De BAHA NZ Niacinamide 20% + Zinc 4% Serum 30ml Default Title
$13.10
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free
Pairs beautifully with

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$13.10

niacinamide 20%, zinc PCA 4%, and hyaluronic acid

Hyaluronic acid is a glycosaminoglycan naturally present in the dermis. When applied topically, low-molecular-weight HA penetrates beyond the surface to bind water molecules between skin cells, creating a reservoir effect that keeps skin plump from within. In this serum, Hyaluronic Acid targets sensitivity and redness, delivering delivers deep, lasting hydration that keeps skin plump throughout the day with consistent use.

Hyaluronic Acid
draws and locks moisture deep within the skin, holding up to 1000x its weight in water
Niacinamide 20%
intercepts melanin transfer to fade spots and refine pore texture from within
Zinc 4%
calms inflammation and regulates sebum production for clearer, less oily skin
The texture

Lightweight, absorbing serum

This serum is formulated with 20% niacinamide and 4% zinc to shrink pores and even skin tone, hyaluronic acid to hydrate skin and Vitamin B3 to protect it from UV light. Formula is suitable for sensitive skin.

  • This NZ Niacinamide 20 Zinc PCA 4 Serum contains 20% Niacinamide and 4% Zinc that helps to reduce pore size and even out skin tone in order to improve sensitive skin.
  • Free of harsh chemicals and hydroquinone, which makes it extremely gentle and safe for daily use.
  • Offers wrinkle improvement and protects your complexion fro UV rays with Vitamin B3 and Hyaluronic Acid.
Sensitive Skin visible pores excess oil uneven tone breakouts
Hover the swatch: it ripples like water

How to use

1

After toner, apply 2 to 3 drops over the face.

2

Pat gently into the skin until absorbed.

3

Focus on the areas that need the most care.

4

Follow with moisturizer.

5

Use morning and night.

Full transparency

Ingredients

niacinamide 20%, zinc PCA 4%, hyaluronic acid support oil balance and pore clarity without stripping.

This formula is designed for skin that wants visible oil control without the stripped feel that harsher products can cause. Ingredients such as niacinamide 20%, zinc PCA 4%, hyaluronic acid are commonly used to help reduce the look of excess shine, enlarged pores, and uneven texture while still supporting barrier balance. That is important because oily skin still needs hydration and comfort to stay smooth and cooperative. The lightweight texture supports regular use under moisturizer or sunscreen, which makes the routine easier to maintain. The science story here is balance rather than punishment: help the complexion look clearer and more refined while keeping the skin surface comfortable enough for daily wear. The texture and delivery format are part of why the formula makes practical sense in a daily routine, because products like this work best when they are comfortable enough to use consistently and easy to layer with moisturizer, sunscreen, or makeup as needed. That consistent, low-friction use is what makes the visible results more believable over time.

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 delivers deep, lasting hydration that keeps skin plump throughout the day, 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 sensitivity and redness. 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.
Hyaluronic Acid draws and locks moisture deep within the skin, holding up to 1000x its weight in water. 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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About the brand

OriginSeoul, KR
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