ProtoClinical k-beauty Cos De BAHA HP Vitamin B5 4% + Niacinamide 2% Serum 30ml single upright serum bottle centered on a pale pink and green background
Cos De BAHA

Cos De BAHA HP Vitamin B5 4% + Niacinamide 2% Serum 30ml

$26.79
Replenishes lasting moisture Helps soften dry lines Supports a healthier barrier Balances light daily glow Leaves skin feeling smoother
One of the hottest products on the market currently is Vitamin B5 for sale. Vitamin B5 serum benefits your skin in many ways, helping to moisturize, heal and smooth the skin, along with increasing elasticity to provide a huge punch of moisturization. When your skin ages, it loses...
A lightweight comfort serum for skin that looks dry, lined, or barrier-stressed.
100% authentic

Sourced direct · batch code

4% Vitamin B5 2% Niacinamide Barrier-Hydrating Serum
panthenol niacinamide
Cos De BAHA HP Vitamin B5 4% + Niacinamide 2% Serum 30ml
Cos De BAHA HP Vitamin B5 4% + Niacinamide 2% Serum 30ml Default Title
$26.79
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free

Build your bundle

Build Your Bundle

Your bundle, built around your choices.

Loading your bundle builder...

panthenol and niacinamide

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 loss of firmness, delivering delivers deep, lasting hydration that keeps skin plump throughout the day with consistent use.

Niacinamide 2%
intercepts melanin transfer to fade spots and refine pore texture from within
Panthenol (Vitamin B5)
penetrates deep to hydrate from within and repair compromised barrier tissue
Texture

Lightweight, absorbing serum

All Skin Types dryness dehydration fine lines barrier weakness
Hover the swatch: it ripples like water

How to use

1

Apply after toner to clean skin.

2

Smooth 2-3 drops over the face and neck.

3

Pat gently until absorbed.

4

Follow with moisturizer.

5

Use morning and night.

Full transparency

Ingredients

Vitamin B5 and niacinamide focus on barrier comfort, smoother texture, and daily hydration without heaviness.

This serum centers on moisture repair rather than aggressive correction. Panthenol, also known as vitamin B5, helps the skin feel more comfortable by supporting barrier function and reducing the tight, dry feeling that often makes fine lines look worse. Niacinamide adds a balancing effect by helping the skin appear more even and resilient while staying lightweight enough for daily use. The combination is especially useful when the complexion looks dehydrated, slightly stressed, or rough from moisture loss. Instead of relying on a heavy cream, the serum format delivers hydration in a lighter layer that can be used under anything else in the routine. The result is a softer, better-supported surface with less tightness and a healthier-looking finish over time.

The detail

Specs & details

FormatLightweight serum
SizeDefault Title
Skin typesAll Skin Types
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.
Niacinamide intercepts melanin transfer to fade spots and refine pore texture from within. Consistent daily use is key to seeing the full benefits.
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.
You may also like

More clinical glow

Cos De BAHA
About the brand

OriginSeoul, KR
Shop all →