-17%

Cos De BAHA Niacinamide 20% + Zinc PCA 4% Serum (NZ) – 30ml

Size	30ml

Original price was: 1,290.00৳.Current price is: 1,070.00৳.

Cos De BAHA Niacinamide
20% + Zinc PCA 4% Serum (30ml) is a maximum-concentration niacinamide serum
delivering intensified brightening, sebum control, and skin-clearing benefits
for experienced users targeting stubborn dark spots, persistent oiliness, and
deep pore congestion.

49 People watching this product now!

Kioraa Skincare Disclaimer

Kioraa ensures all products are authentic and sourced from verified, legitimate suppliers. The information provided is compiled from reputable online references, brand data, and research; however, it may not be applicable to all skin types, conditions, or sensitivities. Kioraa assumes no responsibility for the accuracy, completeness, or individual suitability of this information and shall not be held liable for any adverse reactions or consequences arising from its use. Customers are advised to exercise discretion and seek professional dermatological or medical consultation for any concerns or specific skin requirements.

Return & Replacement Policy

At Kioraa, your satisfaction matters to us. To ensure a smooth experience, please review the key conditions before submitting a return or refund request:

• Requests must be raised within 24 hours of delivery with valid unboxing video proof to our WhatsApp support.
• Items must be unused, unopened, and in their original sealed condition.
• Without proper video evidence, damaged/defective/incorrect/missing items will not be eligible for replacement or refund.
• Return & re-delivery shipping charges are borne by the customer.
• Sale, discount, and promotional items are not eligible for return/refund.
• If an item is out of stock, refunds will be processed within 7–15 working days.

For complete details, please review our full Return/Exchange & Refund Policy.

Read More

All transactions are encrypted and processed securely

Product
Overview

Cos De BAHA Niacinamide 20% + Zinc PCA 4% Serum (NZ) (30ml) is Cos
De BAHA’s advanced, high-concentration niacinamide serum — doubling the
niacinamide concentration to 20% and quadrupling the zinc PCA to 4% compared
to their standard N serum — for those who have already built tolerance to
niacinamide and want to push the concentration higher for maximum
brightening, sebum control, and skin-clearing efficacy. This is a
professional-grade, high-potency formula designed for experienced niacinamide
users with persistent skin concerns such as stubborn melasma, deep pore
congestion, and severe sebum overproduction that have not fully responded to
standard 10% niacinamide concentrations.

At 20% niacinamide, the serum delivers intensified versions of
niacinamide’s core benefits: significantly more aggressive melanin transfer
inhibition for faster and deeper dark spot correction, more pronounced
ceramide and fatty acid stimulation for a stronger skin barrier, more
powerful sebocyte regulation for comprehensive oil control, and enhanced
anti-inflammatory action for significantly inflamed or acne-prone skin. The
4% zinc PCA provides a potent sebum-regulating and antibacterial effect that
meaningfully complements the niacinamide at this elevated concentration,
combining zinc’s 5-alpha reductase inhibition with PCA’s (pyrrolidone
carboxylic acid) natural moisturising properties for a formula that controls
sebum without dehydrating the skin. For those in Bangladesh dealing with
severe oiliness, stubborn dark spots, or persistent pore congestion who want
a maximum-strength daily niacinamide treatment, the NZ formulation offers
professional-level concentration at an accessible price point.

Key Benefits

Niacinamide 20% provides maximum brightening intensity for
stubborn dark spots and persistent melanin overproduction.
Zinc PCA 4% offers powerful sebum regulation and antibacterial
benefits for severely oily or congested skin.
Intensified ceramide stimulation from 20% niacinamide provides
superior barrier strengthening with regular use.
Targets persistent skin concerns that haven’t fully responded to
standard 10% niacinamide concentration serums.
Professional-grade concentration at an accessible price point for
experienced active skincare users.

Key Ingredients

Niacinamide (Vitamin B3) at 20% provides intensified melanin
transfer inhibition (brightening), ceramide synthesis stimulation (barrier), sebocyte
regulation (oil control), and anti-inflammatory activity. Zinc PCA at 4%
provides potent sebum regulation via 5-alpha reductase inhibition,
antibacterial action against Cutibacterium acnes, and skin-calming zinc ion
benefits. PCA (pyrrolidone carboxylic acid) in zinc PCA is a natural
moisturising factor that helps maintain hydration balance alongside the
strong sebum regulation.

Who It’s For

Ideal for experienced niacinamide users with oily, severely
sebum-overproductive, pore-congested, or persistently dark-spotted skin who
have built tolerance to 10% niacinamide and want to escalate concentration
for greater efficacy. Not recommended for first-time niacinamide users or
those with sensitive or reactive skin without prior gradual introduction to
lower-concentration niacinamide serums. Always patch test before first
use.

Why Shop at Kioraa

Shop authentic Cos De BAHA products in Bangladesh at Kioraa —
professional-grade active skincare with genuine sourcing and fast local
delivery.

Cos De BAHA is a Korean skincare brand known for straightforward, ingredient-focused formulas that target specific concerns. The brand highlights active-led serums and ampoules for issues like dullness, uneven tone, visible pores, breakouts, and dehydration. Many products spotlight popular ingredients such as niacinamide, hyaluronic acid, vitamin C, peptides, retinol, and exfoliating acids, so you can build a routine based on your goals. The textures feel lightweight and layer easily with moisturizers and sunscreen. If you like customizing skincare step by step, Cos De BAHA makes it simple and affordable. At Kioraa, we curate the bestsellers from Cos De BAHA and help you choose the right actives for your skin.

Key ingredients:
Niacinamide 20%, Zinc PCA
4%. Full ingredient list may vary — check packaging.

After cleansing and
toning, apply a few drops to face and neck. Press gently until absorbed.
Follow with moisturiser. Start with every other day to assess tolerance
before using daily. Apply SPF in the morning without fail. Ideal for PM use
if any sensitivity is experienced.

Niacinamide 20% provides double the brightening and sebum control
of standard 10% niacinamide serums.
Zinc PCA 4% delivers powerful sebum regulation and antibacterial
benefits for oily and acne-prone skin.
High-concentration formula targets stubborn dark spots, deep pore
congestion, and persistent excess oil.
Strengthens the skin barrier with enhanced ceramide stimulation
from the elevated niacinamide concentration.
Advanced-concentration serum for those who want maximum
niacinamide and zinc efficacy in a daily serum.

For external use only.
Patch test before first use. Start with alternate-day use to build tolerance.
Avoid direct eye contact. Always apply SPF in the morning. Discontinue if
irritation persists. Keep out of reach of children.