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Azelaic Acid 10% Serum with Niacinamide

Azelaic Acid 10% Serum with Niacinamide

Product Description

A potent yet gentle K-beauty serum featuring 10% azelaic acid combined with niacinamide, panthenol, and hyaluronic acid to target acne, redness, hyperpigmentation, and rosacea while soothing and hydrating the skin. This minimalist formula delivers clinical-strength results without irritation.

๐Ÿ‡ฐ๐Ÿ‡ท K-Beauty ยท Made in South Korea
โœ” 10% Azelaic Acid โœ” Niacinamide โœ” Fragrance-Free โœ” Alcohol-Free โœ” Vegan โœ” Cruelty-Free โœ” Paraben-Free โœ” Silicone-Free
Pregnancy Safe
Yes โœ”
Fungal Acne Safe
Caution โš ๏ธ
Comedogenic Rating
1/5
๐Ÿ’ง
Size
30ml / 1 fl oz
๐Ÿงช
Form
Liquid Serum
โš—๏ธ
pH Level
4.5 - 5.5
๐ŸŽฏ
Key Active
Azelaic Acid 10%
๐ŸŒฟ
Type
Clean Beauty

โœจ Texture & Feel

๐Ÿ’ง
Consistency
Lightweight Serum
๐Ÿ‘ƒ
Scent
Fragrance-Free
โฑ๏ธ
Absorption
30-60 Seconds
๐ŸŽฏ
Finish
Slightly Dewy
๐ŸŽฏ

Targets Acne & Breakouts

10% azelaic acid kills acne-causing bacteria, unclogs pores, and reduces inflammation to prevent and treat breakouts effectively.

โœจ

Fades Dark Spots

Inhibits tyrosinase enzyme to reduce melanin production, helping fade post-acne marks, hyperpigmentation, and melasma over time.

๐ŸŒธ

Calms Rosacea & Redness

Powerful anti-inflammatory properties soothe redness, irritation, and rosacea symptoms for a calmer, more even complexion.

๐Ÿ’ง

Hydrates & Strengthens

Niacinamide, panthenol, and hyaluronic acid work together to strengthen the skin barrier and maintain optimal hydration levels.

๐Ÿ›ก๏ธ Safety & Compatibility

โœ…
Pregnancy & Breastfeeding Safe

Azelaic acid is FDA Category B and considered safe during pregnancy and breastfeeding. Only 3-4% is absorbed systemically when applied topically.

โš ๏ธ
Fungal Acne: Use with Caution

Contains Polysorbate 20 which may feed malassezia in some individuals. However, azelaic acid itself has anti-fungal properties that may counteract this.

โœ…
Low Comedogenic Rating (1/5)

This lightweight, oil-free formula is non-comedogenic and unlikely to clog pores. Safe for acne-prone skin.

โœ…
No Photosensitivity

Unlike AHAs and retinoids, azelaic acid does not increase sun sensitivity. However, daily SPF is still recommended.

๐Ÿ”ฌ Ingredient Breakdown

โš—๏ธ Azelaic Acid 10% Proven

A naturally occurring dicarboxylic acid with powerful antibacterial, anti-inflammatory, and tyrosinase-inhibiting properties. Clinically proven to treat acne, rosacea, and hyperpigmentation.

  • Studies show: 10-20% azelaic acid is as effective as benzoyl peroxide and tretinoin for acne treatment
  • Mechanism: Inhibits thioredoxin reductase in bacteria, blocks abnormal melanocyte activity
  • Safety: FDA Category B for pregnancy, minimal systemic absorption (3-4%)
๐Ÿ’ก
10% is the minimum effective concentration for treating acne and rosacea according to dermatological research.

๐Ÿงฌ Niacinamide ~2% Proven

Vitamin B3 derivative that strengthens the skin barrier, regulates sebum production, minimizes pores, and brightens skin tone. Works synergistically with azelaic acid.

  • Barrier support: Increases ceramide and fatty acid production in skin
  • Oil control: Regulates sebum production at 2%+ concentration
  • Brightening: Inhibits melanosome transfer to keratinocytes

๐Ÿ’ง Sodium Hyaluronate 0.2% Proven

The salt form of hyaluronic acid with smaller molecular size for better penetration. Holds up to 1000x its weight in water to plump and hydrate skin.

  • Hydration: Attracts and binds water molecules to skin surface
  • Anti-aging: Plumps fine lines and improves skin elasticity

๐ŸŒฟ Panthenol (Vitamin B5) ~2% Proven

Pro-vitamin B5 with excellent moisturizing, soothing, and wound-healing properties. Helps counteract any potential dryness from azelaic acid.

  • Wound healing: Accelerates epithelial regeneration
  • Anti-inflammatory: Reduces redness and irritation
  • Moisturizing: Improves skin hydration and barrier function

๐Ÿต Camellia Sinensis Leaf Extract Promising

Green tea extract rich in EGCG polyphenols with powerful antioxidant and anti-inflammatory benefits. Helps protect skin from free radical damage.

  • Antioxidant: Neutralizes free radicals and prevents oxidative stress
  • Anti-inflammatory: Calms irritated skin and reduces redness

13 ingredients

Aloe Barbadensis Leaf Extract, Propylene Glycol, Azelaic Acid (10%), Polysorbate 20, 1,2-Hexanediol, Propanediol, Panthenol, Niacinamide, Sodium Hyaluronate, Camellia Sinensis Leaf Extract, Momordica Charantia Fruit Extract, Sambucus Nigra Flower Extract, Leontopodium Alpinum Extract

FREE FROM: Alcohol, Parabens, Sulfates, Silicones, Fragrance, Artificial Colors, Mineral Oil, Essential Oils, Gluten

๐Ÿ”„ Where It Fits in Your Routine

1
Cleanser
2
Toner
3
Azelaic Acid Serum
4
Moisturizer
5
Sunscreen (AM)

Apply after water-based toners and before heavier creams. Can be used AM and PM. Pair with sunscreen during the day for best results.

๐Ÿ“ How to Use

1

Cleanse & Prep

Start with clean, dry skin. If using a toner, allow it to absorb fully before applying the serum.

2

Apply 3-5 Drops

Dispense a few drops onto fingertips and gently pat onto face and neck, avoiding the eye area.

3

Allow to Absorb

Wait 30-60 seconds for the serum to fully absorb before applying next steps in your routine.

4

Follow with Moisturizer

Seal in the serum with your favorite moisturizer. In the morning, always finish with SPF 30+.

๐Ÿ‘ค Who Is It For?

โœ… Perfect for you if:

  • You have acne, breakouts, or clogged pores
  • You struggle with rosacea or facial redness
  • You want to fade post-acne marks or hyperpigmentation
  • You're pregnant or breastfeeding and need acne treatment
  • You have sensitive skin and can't tolerate retinoids
  • You want a gentle acid that won't cause photosensitivity

โŒ Consider alternatives if:

  • You have confirmed fungal acne (malassezia folliculitis)
  • You're looking for anti-aging benefits primarily
  • You need prescription-strength treatment (15-20% azelaic acid)
  • You dislike the slightly oily texture of this serum
  • You prefer silicone-based formulas with matte finish

๐ŸŽฏ Skin Type Compatibility

Oily Skin โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Lightweight formula helps regulate sebum production without adding greasiness. Niacinamide helps minimize pores.

Dry Skin โ˜…โ˜…โ˜…โ˜…โ˜† Good

Contains hyaluronic acid and panthenol for hydration, but may need a richer moisturizer on top for very dry skin.

Combination Skin โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Balances well across different face zones. Controls oil in T-zone while hydrating drier areas.

Sensitive Skin โ˜…โ˜…โ˜…โ˜…โ˜† Good

Gentler than retinoids and AHAs. Start slowly 2-3x/week. Fragrance-free formula minimizes irritation risk.

Acne-Prone Skin โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Ideal choice. Targets acne-causing bacteria, reduces inflammation, and prevents future breakouts without harsh side effects.

๐Ÿ“ˆ Results Timeline

Week 1-2

Initial Adjustment Period

Skin begins adapting to the active ingredient. Some users may experience mild tingling, temporary redness, or initial purging as skin clears out congestion.

30% noticed initial improvement
Week 3-4

Visible Redness Reduction

Rosacea symptoms and general redness begin to calm noticeably. Active breakouts start healing faster and inflammation decreases.

60% noticed reduced redness
Week 6-8

Clearer, Brighter Skin

Significant reduction in active acne and new breakouts. Post-acne marks begin to fade. Skin texture feels smoother and more refined.

75% noticed clearer skin
Week 12+

Optimal Results

Maximum benefits achieved with consistent use. Hyperpigmentation significantly faded. Skin appears more even-toned and radiant overall.

85% achieved desired results

โญ Ratings by Platform

๐Ÿ›’ Amazon
โ˜…โ˜…โ˜…โ˜… 4.4
Rating
8,500+
Reviews
โš ๏ธ Main complaint: Some users experience initial tingling or dryness. Product may crystallize in cold weather.
๐ŸŒฟ iHerb
โ˜…โ˜…โ˜…โ˜… 4.5
Rating
2,800+
Reviews
โš ๏ธ Main complaint: Slightly oily texture takes time to absorb. Results require patience (4-8 weeks).
๐ŸŒธ YesStyle
โ˜…โ˜…โ˜…โ˜… 4.3
Rating
450+
Reviews
โš ๏ธ Main complaint: Small bottle size (30ml) runs out quickly with daily use.
๐Ÿ  Brand Website
โ˜…โ˜…โ˜…โ˜…โ˜… 4.7
Rating
600+
Reviews
โš ๏ธ Main complaint: White sediment may appear (normal for azelaic acid - shake or warm bottle to dissolve).

โš–๏ธ Pros & Cons

โœ… Praised

  • Excellent value for 10% azelaic acid concentration
  • Fragrance-free, gentle formula suits sensitive skin
  • Effective for acne, rosacea, and hyperpigmentation
  • Safe during pregnancy and breastfeeding
  • Clean ingredient list with only 13 ingredients
  • No photosensitivity - can be used day and night
  • Works well layered with other skincare products
  • Visible results for redness within weeks

โŒ Criticized

  • Slightly oily texture may not suit all preferences
  • May crystallize/sediment in cold weather (normal)
  • Small 30ml bottle depletes quickly with daily use
  • Contains Polysorbate 20 (potential fungal acne trigger)
  • Initial tingling/burning for some users
  • Results require 4-8 weeks of consistent use
  • Can pill under certain makeup formulas

๐Ÿ’ฐ Budget-Friendly Alternatives (Dupes)

85% Match
The Ordinary Azelaic Acid Suspension 10%
$8.90 Budget Pick

Same 10% azelaic acid concentration in a silicone-based suspension. Thicker, paste-like texture with matte finish. May pill under makeup. No niacinamide or hydrating ingredients.

70% Match
Naturium Azelaic Topical Acid 10%
$20.00 Similar Price

Uses potassium azeloyl diglycinate (azelaic acid derivative) instead of pure azelaic acid. More elegant texture with added vitamin C and coffee extract. Better for sensitive skin.

65% Match
Paula's Choice 10% Azelaic Acid Booster
$45.00 Premium

Premium formula with 0.5% salicylic acid, licorice root, and allantoin for enhanced results. Silkier texture, higher price point. Better for combination/oily skin with acne.

๐Ÿ”„ Comparison with Competitors

The Ordinary Azelaic Acid 10%

$8.90
Azelaic Acid Type Pure Azelaic Acid 10%
Added Actives Vitamin E only
Texture Thick Silicone Paste
Fungal Acne Safe No (Polysorbate 60)
Value ($/ml) $0.30/ml

Paula's Choice 10% Azelaic Acid

$45.00
Azelaic Acid Type Pure Azelaic Acid 10%
Added Actives Salicylic Acid, Licorice
Texture Silky Cream-Gel
Fungal Acne Safe No (Fatty Acids)
Value ($/ml) $1.50/ml

Naturium Azelaic Topical Acid 10%

$20.00
Azelaic Acid Type Derivative (PAD)
Added Actives Niacinamide, Vitamin C
Texture Light Gel Serum
Fungal Acne Safe Yes
Value ($/ml) $0.67/ml

๐Ÿ“ฆ Storage & Shelf Life

๐Ÿ“…
Period After Opening (PAO)

12 months after opening

๐Ÿ 
Storage

Store in a cool, dry place away from direct sunlight. If product crystallizes in cold weather, soak bottle in warm water for 5-15 minutes.

๐Ÿ“ฆ
Packaging

Dark glass dropper bottle to protect from light degradation

โœˆ๏ธ
Travel Friendly

Yes, 30ml is under 100ml TSA limit for carry-on luggage

โ“ Frequently Asked Questions

Yes, azelaic acid is considered safe during pregnancy and breastfeeding. It is classified as FDA Category B, meaning animal studies have shown no fetal risk and it has been used by pregnant women without increased birth defects. Only 3-4% of topically applied azelaic acid is absorbed systemically. The American Academy of Dermatology recommends azelaic acid as a safe option for treating acne and melasma during pregnancy. However, always consult your healthcare provider before starting any new skincare during pregnancy.

This product requires caution for fungal acne sufferers. While azelaic acid itself has anti-fungal properties and can help fight malassezia, the formula contains Polysorbate 20, which is flagged as a potential fungal acne trigger by some ingredient databases. However, at higher concentrations, Polysorbate 20 may actually starve the yeast. Results vary between individuals - some with fungal acne use this product successfully, while others may experience flare-ups. Patch test first and monitor your skin's response.

Azelaic acid is remarkably versatile and can be used with most actives. It pairs well with niacinamide (already included in formula), vitamin C, and hyaluronic acid. When using with retinol, AHAs, or BHAs, introduce slowly to avoid over-exfoliation. Many users successfully alternate: use azelaic acid in the morning and retinol at night, or use on different days. If irritation occurs, reduce frequency. Unlike AHAs, azelaic acid does not increase photosensitivity, making it ideal for daytime use.

This serum is excellent for oily, combination, and acne-prone skin types. It's particularly beneficial for those dealing with acne, rosacea, post-inflammatory hyperpigmentation, or melasma. The lightweight formula with niacinamide helps regulate oil production. Dry skin types can use it successfully but should follow with a rich moisturizer. Sensitive skin should start slowly (2-3x per week) as azelaic acid is gentler than retinoids but may still cause initial adjustment.

Results timeline varies by concern: Redness and rosacea often improve within 2-4 weeks. Active acne may start clearing in 4-6 weeks. Hyperpigmentation and post-acne marks require 8-12+ weeks of consistent use. Some users experience initial purging in the first 1-2 weeks as the acid clears congestion. For optimal results, use consistently for at least 12 weeks. This is not an overnight solution - patience and consistency are key to seeing the full benefits of azelaic acid.

Apply after cleansing and toning, before heavier serums and moisturizers. The general rule is to apply from thinnest to thickest consistency. Routine order: Cleanser โ†’ Toner โ†’ Azelaic Acid Serum โ†’ Other serums โ†’ Moisturizer โ†’ Sunscreen (AM). Can be used both morning and night. In the morning, always follow with SPF 30+. Wait 30-60 seconds between steps for proper absorption. Can be mixed with moisturizer if you experience sensitivity.

No, this serum has a comedogenic rating of 1/5, meaning it is very unlikely to clog pores. The formula is oil-free, silicone-free, and designed to be lightweight. Azelaic acid itself is actually comedolytic (helps unclog pores) and antibacterial, making it beneficial for acne-prone skin. User reviews consistently report that the product does not cause breakouts or congestion. However, individual reactions can vary, so patch testing is always recommended.

The product has a PAO (Period After Opening) of 12 months. The 30ml bottle typically lasts 2-3 months with daily use (3-5 drops per application). Store in a cool, dry place away from direct sunlight. The dark glass bottle helps protect the formula from light degradation. If white sediment or crystals appear (especially in cold weather), this is normal for azelaic acid - simply soak the bottle in warm water for 5-15 minutes to dissolve.

โ˜…โ˜…โ˜…โ˜…โ˜†
4.4 out of 5

Verdict: Cos De BAHA Azelaic Acid 10% Serum delivers exceptional value for those seeking clinical-strength azelaic acid at an affordable price point. The clean, minimalist formula effectively targets acne, rosacea, and hyperpigmentation while remaining gentle enough for sensitive and pregnant users. While the slightly oily texture and potential fungal acne concerns may not suit everyone, the combination of 10% azelaic acid with niacinamide, panthenol, and botanical extracts makes this a standout choice in the K-beauty serum category. For best results, commit to consistent use for 8-12 weeks and pair with daily sunscreen.

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging ยซpromisesยป it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

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Notable Effects & Ingredients

anti-aging Anti-Aging from 2 ingredient(s):
Niacinamide Camellia Sinensis Leaf Extract
brightening Brightening from 2 ingredient(s):
Azelaic Acid Niacinamide
wound Promotes Wound Healing from 4 ingredient(s):
Azelaic Acid Panthenol Niacinamide Sodium Hyaluronate
ache Ache-fighting from 2 ingredient(s):
Azelaic Acid Niacinamide
question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
2 1
oily-skin Oily/Acne-Prone Skin
2
sensitive-skin Sensitive Skin
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
53% 15% 30%

Product ingredient list

Showing first 5 of 13 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
0 Unknown
Aloe Barbadensis Leaf Extract
Emollient, Humectant, Skin Conditioning
Hydrating
Redness
Irritation
3 B
Propylene Glycol
Solvent, Skin Conditioning, Fragrance, Humectant, Viscosity Controlling, Viscosity Decreasing Agent, Skin-Conditioningagent - Miscellaneous
Hydrating
1 A
Azelaic Acid
Masking, Fragrance, Ph Adjuster, Buffering Agent, Buffering
brightening Brightening
ache Ache-fighting
Promotes Wound Healing
Redness
Irritation
Texture
Pores
3 B
Polysorbate 20
Surfactant, Emulsifying
1 A
1,2-Hexanediol
Solvent, Skin Conditioning
Hydrating
VIEW ALL INGREDIENTS