ProtoClinical k-beauty Cos De BAHA AN Arbutin 5% Serum with Niacinamide 5% 30ml lavender serum bottle with matching box side by side on a white background
Cos De BAHA

Cos De BAHA AN Arbutin 5% Serum with Niacinamide 5% 30ml

$11.79
Targets the appearance of dark spots and uneven tone Supports a brighter, less dull-looking complexion Adds lightweight hydration Combines two complementary tone-support ingredients in one serum

A lightweight water-gel serum combining 5% arbutin and 5% niacinamide for routines focused on uneven-looking tone and post-blemish marks. Hyaluronic acid adds slip and hydration without turning the formula into a heavy cream.

Texture and routine fit: Fluid gel with light tack that settles under moisturizer. Apply after toner and before cream. Start once daily or every other day if the routine already contains several brightening products.

  • Best for: uneven-looking tone, post-blemish marks, and lightweight hydration
  • Important: this serum is not sunscreen; use broad-spectrum SPF in the morning
  • Tolerance: patch test if easily irritated and reduce frequency if persistent stinging or redness occurs

Explore the Cos De BAHA collection, compare options in the dark spot serum guide, or read the niacinamide guide.

Avoid applying several new tone-focused serums in the same routine until you know how your skin responds. Check the bottle for the current INCI list.
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Arbutin 5%: cosmetic brightening ingredient used to target visible discoloration Niacinamide 5%: supports barrier function and more even-looking tone Hyaluronic acid: humectant that attracts water to the skin surface
Cos De BAHA AN Arbutin 5% Serum with Niacinamide 5% 30ml
Cos De BAHA AN Arbutin 5% Serum with Niacinamide 5% 30ml Default Title
$11.79
Ingredient-focused product details Clear use directions Full INCI when available Delivery confirmed at checkout
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$70.12

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Arbutin 5%

Arbutin is used in cosmetics to help limit the formation of excess visible pigment, while niacinamide helps reduce pigment transfer to surface cells and supports the barrier. Hyaluronic acid offsets dryness by adding humectant hydration.

Arbutin 5%
cosmetic brightening ingredient used to target visible discoloration
Niacinamide 5%
supports barrier function and more even-looking tone
Hyaluronic acid
humectant that attracts water to the skin surface
Texture

Lightweight, hydrating, non-heavy

Normal combination dry and uneven-tone concerns
Hover the swatch: it ripples like water

How to use

Apply 2 to 3 drops after toner, then moisturize. Start once daily or every other day, and use sunscreen every morning.
Full transparency

Ingredients

Alpha arbutin, niacinamide, and hyaluronic acid focus on visible discoloration while helping skin stay comfortably hydrated.

Arbutin is used in cosmetics to help limit the formation of excess visible pigment, while niacinamide helps reduce pigment transfer to surface cells and supports the barrier. Hyaluronic acid offsets dryness by adding humectant hydration.

The detail

Specs & details

FormatBrightening facial serum
SizeDefault Title
Skin typesNormal, combination, dry and uneven-tone concerns
Country of originSouth Korea
Before you add to cart

Questions & answers

The formula is listed with 5% arbutin and 5% niacinamide.
Use it after toner and before moisturizer.
Many routines use it daily, but start gradually if your skin is sensitive.
Yes, daily sunscreen is essential when targeting visible discoloration.
It can be paired in a simple routine, but introduce one product at a time and reduce frequency if irritation develops.
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Cos De BAHA
About the brand

Shop Cos De BAHA serums and treatment skincare for targeted concerns such as dark spots, texture, pores, dehydration, and barrier support. This collection is led by active-focused formulas featuring niacinamide, tranexamic acid, retinol, bakuchiol, peptides, hyaluronic acid, ceramide, and vitamin C across serums, toners, and creams. The assortment is especially strong for shoppers building a routine around concentrated leave-on steps rather than a broad wash-and-mask category mix. At Protoclinical, we treat Cos De BAHA as an evidence-led serum wardrobe: choose one or two actives based on your skin concern, support them with hydration, and keep the page focused on tone, texture, and routine precision. Explore the collection to build a clinical-feeling Korean skincare protocol with targeted treatments that fit into consistent daily use.

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