Azelaic Acid Lock Mask

VT Cosmetics

Where to buy Possibly in stock

About this product

The VT Cosmetics Azelaic Acid Lock Mask is a leave on & sleeping mask. Our analysis of its 31 ingredients (26 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Leave On & Sleeping Masks
Ingredients
31
Low-risk
26
Fragrance
Fragrance-free
Origin
South Korea

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
Gluconolactone Squalane Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Polyglyceryl-10 Isostearate Lactic Acid
Caution for dry skin
Centella Asiatica Extract Glycerin Polyglyceryl-10 Laurate Polyglyceryl-10 Oleate Polyglyceryl-10 Isostearate Hydroxypropyl Methylcellulose
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Betaine Salicylate Azelaic Acid
Sensitive Skin 4/6
Good for sensitive skin
Madecassoside Centella Asiatica Extract Glycerin Allantoin
Caution for sensitive skin
Gluconolactone Dipropylene Glycol Azelaic Acid Butylene Glycol Glycerin Lactic Acid

Ingredients list

31 total
Lower hazard (1) Higher hazard (4)
All31 Skin Conditioning29 Solvent7 Viscosity Controlling7 Humectant7 Fragrance7 Emulsion Stabilising4 Surfactant4 Film Forming4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Polyvinyl Alcohol
(Binding Agent, Film Forming, Viscosity Increasing Agent, Viscosity Controlling)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
Agave Americana Stem Extract
(Skin Conditioning)
1
A
1,2-Hexanediol
(Solvent)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
B
Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
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
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
B
Polyglyceryl-10 Isostearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
A
Hydroxypropyl Methylcellulose
(Adhesive, Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Antistatic Agent, Binding, Surfactant, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
B
Polyglyceryl-10 Oleate
(Skin Conditioning, Emulsifying, Surfactant)
1
A
Azelaic Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
1
B
Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic)
1
Ammonium Acryloyldimethyltaurate/VP Copolymer
(Viscosity Controlling)
1
Sodium Polyacryloyldimethyl Taurate
(Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling)
Cynanchum Atratum Extract
(Skin Conditioning)
1
Althaea Rosea Flower Extract
(Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
MELALEUCA ALTERNIFOLIA LEAF EXTRACT
(Perfuming, Skin Conditioning)
1
Betaine Salicylate
(Antimicrobial Agent, Exfoliant, Keratolytic)
1
B
Capryloyl Salicylic Acid
(Skin Conditioning)
1
Gluconolactone
(Fragrance, Humectant, Solvent)
1
Madecassoside
(Antioxidant, Skin Conditioning)
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
4
B
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent)
Bad for Sensitive Skin
Bad for Sensitive Skin

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

Glycerin
Humectant, Skin Protecting
Agave Americana Stem Extract
Skin Conditioning
Sodium Hyaluronate
Skin Conditioning, Humectant
Panthenol
Skin Conditioning
Polyglyceryl-10 Laurate
Skin Conditioning
Caprylyl Glycol
Skin Conditioning, Emollient

Benefits

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

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Polyvinyl Alcohol
Binding agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFilm formingViscosity increasing agentViscosity controlling
Agave Americana Stem Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Dipropylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentMaskingViscosity controlling
Polyglyceryl-10 Laurate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmulsifyingSurfactant
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Polyglyceryl-10 Isostearate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifyingSurfactant
Hydroxypropyl Methylcellulose
Adhesive, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AdhesiveBinding agentEmulsion stabilisingFilm formingViscosity increasing agentAntistatic agentBindingSurfactantViscosity controlling
Polyglyceryl-10 Oleate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmulsifyingSurfactant
Azelaic Acid
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragrancePh adjusterBuffering agentMasking
Centella Asiatica Extract
Cleansing, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSkin conditioningSmoothingSoothingTonic
Ammonium Acryloyldimethyltaurate/VP Copolymer
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity controlling
+ 10 more — see the full ingredients list above
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Lactic Acid
Exfoliant, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantFragranceHumectantPh adjusterSkin-conditioning agent -humectantSkin conditioningBuffering agent Bad for Sensitive Skin

How to use

How to use

  • 1 Evening, start slow: Best in the PM a few times a week to begin with; avoid layering with other strong actives the same night.
  • 2 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

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

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Use with caution
BHA (salicylic) (Betaine Salicylate, Capryloyl Salicylic Acid)

Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

BHA (salicylic) 0.5–2%

Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.

Betaine Salicylate, Capryloyl Salicylic Acid

AHA (acid exfoliant) 5–10% (OTC)

OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.

Lactic Acid

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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