AHA Mask

Skoah

Where to buy Possibly in stock

About this product

The Skoah AHA Mask is a wash-off mask. Our analysis of its 25 ingredients (18 low-risk) rates it Excellent (93/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Wash-Off Mask
Ingredients
25
Low-risk
18
Fragrance
Fragrance-free
Origin
Canada

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 2/4
Good for dry skin
Echinacea Purpurea Extract Sodium Hyaluronate
Caution for dry skin
Hypericum Perforatum Extract Camellia Oleifera Leaf Extract Sodium Hydroxide Triethanolamine
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Hypericum Perforatum Extract Camellia Oleifera Leaf Extract
Sensitive Skin 3/7
Good for sensitive skin
Mimosa Tenuiflora Bark Extract Hypericum Perforatum Extract Allantoin
Caution for sensitive skin
Hypericum Perforatum Extract Sodium Citrate Calendula Officinalis Flower Extract Propylene Glycol Alginate Citric Acid Arnica Montana Flower Extract Triethanolamine

Ingredients list

25 total
Lower hazard (1) Higher hazard (6)
All25 Skin Conditioning14 Masking6 Ph Adjuster5 Buffering Agent5 Fragrance4 Soothing4 Skin Protecting4 Tonic4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
PVM/MA Decadiene Crosspolymer
(Binding, Film Forming, Viscosity Controlling)
5
B
Triethanolamine
(Fragrance, Ph Adjuster, Emulsifying, Surfactant, Buffering Agent, Masking)
4
B
Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Propylene Glycol Alginate
(Binding Agent, Fragrance, Viscosity Increasing Agent, Binding, Viscosity Controlling)
1
Arctostaphylos Uva Ursi Leaf Extract
(Skin Conditioning)
2
Arnica Montana Flower Extract
(Masking, Perfuming, Skin Conditioning)
1
Echinacea Purpurea Extract
(Moisturising, Skin Conditioning, Tonic)
1
Mimosa Tenuiflora Bark Extract
(Skin Protecting, Soothing)
1
A
Calendula Officinalis Flower Extract
(Masking, Perfuming, Skin Conditioning)
1
Tilia Cordata Flower Extract
(Skin Conditioning)
1
Ginkgo Biloba Leaf Extract
(Skin Conditioning)
Hedera Helix Extract
(Anticaking, Antimicrobial, Astringent, Skin Conditioning, Soothing, Tonic)
Avena sativa Kernel Extract
(Abrasive, Antioxidant, Skin Conditioning, Skin Conditioning Emollient)
1
A
Hypericum Perforatum Extract
(Antimicrobial, Astringent, Masking, Skin Conditioning, Skin Protecting, Soothing, Tonic)
1
Camellia Oleifera Leaf Extract
(Astringent, Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
Mentha Piperita Oil
(Fragrance, Perfuming, Refreshing, Tonic)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
2
A
Tetrasodium EDTA
(Chelating Agent)
6
B
Diazolidinyl Urea
(Preservative)
4
6
B
Iodopropynyl Butylcarbamate
(Preservative)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin

My Ingredient Notes

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Key ingredients

Glycolic Acid
Exfoliant
Arctostaphylos Uva Ursi Leaf Extract
Skin Conditioning
Arnica Montana Flower Extract
Skin Conditioning
Echinacea Purpurea Extract
Moisturising, Skin Conditioning
Mimosa Tenuiflora Bark Extract
Skin Protecting, Soothing
Calendula Officinalis Flower Extract
Skin Conditioning

Benefits

Fungal-acne (Malassezia) safe
Good for oily/acne-prone skin

Concerns

May not suit dry skin
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
PVM/MA Decadiene Crosspolymer
Binding, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 BindingFilm formingViscosity controlling
Propylene Glycol Alginate
Binding agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFragranceViscosity increasing agentBindingViscosity controlling
Arctostaphylos Uva Ursi Leaf Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Arnica Montana Flower Extract
Masking, Perfuming
Low-hazard ingredient.Read moreShow less
EWG 2 MaskingPerfumingSkin conditioning
Echinacea Purpurea Extract
Moisturising, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 MoisturisingSkin conditioningTonic
Mimosa Tenuiflora Bark Extract
Skin protecting, Soothing
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protectingSoothing
Calendula Officinalis Flower Extract
Masking, Perfuming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A MaskingPerfumingSkin conditioning
Tilia Cordata Flower Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Ginkgo Biloba Leaf Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hedera Helix Extract
Anticaking, Antimicrobial
Limited public safety data.Read moreShow less
EWG N/A AnticakingAntimicrobialAstringentSkin conditioningSoothingTonic
Avena sativa Kernel Extract
Abrasive, Antioxidant
Limited public safety data.Read moreShow less
EWG N/A AbrasiveAntioxidantSkin conditioningSkin conditioning emollient
Hypericum Perforatum Extract
Antimicrobial, Astringent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntimicrobialAstringentMaskingSkin conditioningSkin protectingSoothingTonic
Camellia Oleifera Leaf Extract
Astringent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentSkin conditioning
Mentha Piperita Oil
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfumingRefreshingTonic
+ 3 more — see the full ingredients list above
Triethanolamine
Fragrance, Ph adjuster
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR B FragrancePh adjusterEmulsifyingSurfactantBuffering agentMasking
Glycolic Acid
Exfoliant, Ph adjuster
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantPh adjusterBuffering agent Good for Oily SkinBad for Sensitive Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant 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
Diazolidinyl Urea
Preservative
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR B Preservative
Iodopropynyl Butylcarbamate
Preservative
Moderate-hazard ingredient.Read moreShow less
EWG 4–6 CIR B Preservative
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin

How to use

How to use

  • 1 Where it fits: Use as the first step, on clean hands, before the rest of your routine.
  • 2 Morning & evening: Suitable for both AM and PM use.

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

Trust & honesty

Effective levels — general guide

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

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.

Glycolic 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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