Bioferment Renewal Mask

Byko

Where to buy Possibly in stock

About this product

The Byko Bioferment Renewal Mask is a wash-off mask. Our analysis of its 25 ingredients (17 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to dry 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
17
Fragrance
Fragrance-free
Origin
Sweden
Data updated
May 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 7/7
Good for dry skin
Glyceryl Stearate Citrate Glyceryl Caprylate Lactobacillus/Punica Granatum Fruit Ferment Extract Cetearyl Alcohol Cetyl Alcohol Glycerin Lactic Acid
Caution for dry skin
Glyceryl Caprylate Disodium Cocoyl Glutamate Cetyl Alcohol Sodium Olivoyl Glutamate Charcoal Powder Xanthan Gum Glycerin
Oily/Acne-Prone Skin No data
Sensitive Skin 2/8
Good for sensitive skin
Glycerin Aloe Barbadensis Leaf Juice
Caution for sensitive skin
Cetyl Alcohol Sodium Chloride Glycerin Citric Acid Sodium Benzoate Potassium Sorbate Lactic Acid Benzyl Alcohol

Ingredients list

25 total
Lower hazard (1) Higher hazard (5)
All25 Skin Conditioning14 Fragrance8 Emulsion Stabilising6 Masking5 Viscosity Controlling4 Viscosity Increasing Agent4 Foam Boosting4 Emulsifying4
EWG CIR Ingredient Name & Cosmetic Functions Notes
B
Aloe Barbadensis Leaf Juice
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
1
Water
(Solvent)
Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient)
Shea Butter Ethyl Esters
(Skin Conditioning, Skin Conditioning Emollient)
1
Lactobacillus/Punica Granatum Fruit Ferment Extract
(Hair Conditioning, Humectant, Skin Conditioning)
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
1
B
Glyceryl Stearate Citrate
(Skin Conditioning, Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
Charcoal Powder
(Abrasive, Absorbent, Colorant, Opacifying, Cosmetic Colorant)
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
Salix Nigra Bark Extract
(Skin Protecting)
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
Avena sativa Kernel Extract
(Abrasive, Antioxidant, Skin Conditioning, Skin Conditioning Emollient)
1
Lactobacillus Ferment
(Skin Conditioning)
1
Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial)
Rubus Idaeus Fruit Extract
(Astringent, Keratolytic, Skin Conditioning, Smoothing, Tonic)
1
B
Disodium Cocoyl Glutamate
(Cleansing, Surfactant)
1
Sodium Olivoyl Glutamate
(Cleansing)
1
A
Glyceryl Caprylate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
1
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
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

Antioxidants
Shields skin from free radical damage.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Redness ReducingSoothes visible redness and calms irritation.
Barrier RepairStrengthen and restore your skin's natural barrier.
Reduces IrritationEases discomfort and supports skin resilience.
Acne FightingFights acne and helps prevent breakouts.
Good For Oily SkinBalances oil and helps reduce shine.
Scar HealingImproves the look of marks and scars.
Dark SpotsFades dark spots for even skin tone.

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Helianthus Annuus Seed Oil
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioningSkin conditioning emollient
Shea Butter Ethyl Esters
Skin conditioning, Skin conditioning - emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning - emollient
Lactobacillus/Punica Granatum Fruit Ferment Extract
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningHumectantSkin conditioning
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Charcoal Powder
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveAbsorbentColorantOpacifyingCosmetic colorant
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Salix Nigra Bark Extract
Skin protecting
Limited public safety data.Read moreShow less
EWG N/A Skin protecting
Avena sativa Kernel Extract
Abrasive, Antioxidant
Limited public safety data.Read moreShow less
EWG N/A AbrasiveAntioxidantSkin conditioningSkin conditioning emollient
Lactobacillus Ferment
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Leuconostoc/Radish Root Ferment Filtrate
Antidandruff agent, Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 1 Antidandruff agentAntimicrobial
Rubus Idaeus Fruit Extract
Astringent, Keratolytic
Limited public safety data.Read moreShow less
EWG N/A AstringentKeratolyticSkin conditioningSmoothingTonic
Disodium Cocoyl Glutamate
Cleansing, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSurfactant
Sodium Olivoyl Glutamate
Cleansing
Low-hazard ingredient.Read moreShow less
EWG 1 Cleansing
Glyceryl Caprylate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningEmollientEmulsifyingSurfactant
+ 4 more — see the full ingredients list above
Aloe Barbadensis Leaf Juice
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning Good for Sensitive Skin
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
Glyceryl Stearate Citrate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifying Fungal-acne trigger
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
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens
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.

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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