AZ15 Azelaic Acid 15% + MSM 1% Serum

Cos De BAHA

AZ15 Azelaic Acid 15% + MSM 1% Serum

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About this product

The Cos De BAHA AZ15 Azelaic Acid 15% + MSM 1% Serum is a emulsion. Our analysis of its 24 ingredients (24 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Emulsion
Ingredients
24
Low-risk
24
Fragrance
Fragrance-free
Origin
South Korea
Data updated
Jun 2026

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 8/6
Good for dry skin
Dipotassium Glycyrrhizate Betaine Momordica Charantia Fruit Extract Sodium Hyaluronate Propylene Glycol Hydrolyzed Hyaluronic Acid Camellia Sinensis Leaf Extract Sodium Polyacrylate
Caution for dry skin
Centella Asiatica Extract Polyglyceryl-10 Laurate Camellia Sinensis Leaf Extract Sodium Polyacrylate Sodium Hydroxide Polysorbate 20
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Azelaic Acid Camellia Sinensis Leaf Extract
Sensitive Skin 5/3
Good for sensitive skin
Madecassoside Centella Asiatica Extract Sambucus Nigra Flower Extract Camellia Sinensis Leaf Extract Allantoin
Caution for sensitive skin
Azelaic Acid Propylene Glycol Camellia Sinensis Leaf Extract

Ingredients list

24 total
Lower hazard (1) Higher hazard (3)
All24 Skin Conditioning21 Humectant10 Solvent5 Viscosity Controlling5 Hair Conditioning5 Film Forming4 Emulsion Stabilising4 Viscosity Decreasing Agent3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Azelaic Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
A
1,2-Hexanediol
(Solvent)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Dimethyl Sulfone
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
B
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Hydrolyzed Hyaluronic Acid
(Hair Conditioning, Humectant, Skin Conditioning)
1
B
Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic)
1
Madecassoside
(Antioxidant, Skin Conditioning)
1
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
3
B
Sodium Polyacrylate
(Absorbent, Emulsion Stabilising, Film Forming, Hair Fixing, Skin Conditioning Agent Emollient, Viscosity Controlling Agent, Viscosity Increasing Agent, Binding, Skin Conditioning)
1
B
Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
Sambucus Nigra Flower Extract
(Refreshing, Skin Conditioning, Soothing, Tonic)
1
Momordica Charantia Fruit Extract
(Hair Conditioning, Humectant, Skin Conditioning)
1
Leontopodium Alpinum Extract
(Skin Conditioning)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Propylene Glycol
Humectant, Skin Conditioning
Betaine
Humectant, Skin Conditioning
Panthenol
Skin Conditioning
Dipotassium Glycyrrhizate
Skin Conditioning, Humectant
Allantoin
Skin Conditioning, Skin Protecting
Ceramide NP
Skin Conditioning

Benefits

Good for dry skin
Good for oily/acne-prone skin
Good for sensitive skin

Concerns

Not fungal acne (malassezia) safe

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Azelaic Acid
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragrancePh adjusterBuffering agentMasking
Sodium Hydroxide
Denaturant, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantPh adjusterBuffering agent
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Dimethyl Sulfone
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Betaine
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioningViscosity controlling
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
Ceramide NP
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Hydrolyzed Hyaluronic Acid
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningHumectantSkin conditioning
Centella Asiatica Extract
Cleansing, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSkin conditioningSmoothingSoothingTonic
Madecassoside
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
Hydroxyethylcellulose
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentBindingStabilisingViscosity controlling
Sodium Polyacrylate
Absorbent, Emulsion stabilising
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B AbsorbentEmulsion stabilisingFilm formingHair fixingSkin-conditioning agent -emollientViscosity controlling agentViscosity increasing agentBindingSkin conditioning
Polyglyceryl-10 Laurate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmulsifyingSurfactant
+ 3 more — see the full ingredients list above
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin

How to use

How to use

  • 1 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

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