Hydrating Serum

BYOMA

Where to buy Possibly in stock

About this product

The BYOMA Hydrating Serum is a emulsion. Our analysis of its 28 ingredients (25 low-risk) rates it Excellent (98/100). 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
Emulsion
Ingredients
28
Low-risk
25
Fragrance
Fragrance-free
Origin
United Kingdom
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 11/8
Good for dry skin
Glyceryl Oleate Dipotassium Glycyrrhizate Squalane Oleic Acid Caprylic/Capric Triglyceride Caprylyl Glycol Butylene Glycol Glycerin Cholesterol Lactic Acid Hydrogenated Rapeseed Alcohol
Caution for dry skin
Glyceryl Oleate Sodium Stearoyl Glutamate Sorbitan Isostearate Stearic Acid Oleic Acid Xanthan Gum Glycerin Hydrogenated Lecithin
Oily/Acne-Prone Skin No data
Sensitive Skin 2/8
Good for sensitive skin
Glycerin Hydroxyacetophenone
Caution for sensitive skin
Glyceryl Oleate Dipropylene Glycol Stearic Acid Oleic Acid Caprylic/Capric Triglyceride Butylene Glycol Glycerin Lactic Acid

Ingredients list

28 total
Lower hazard (1) Higher hazard (4)
All28 Skin Conditioning26 Fragrance8 Emulsifying8 Hair Conditioning7 Viscosity Controlling7 Emollient7 Humectant6 Solvent5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
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
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
1
B
Sodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent, Emulsifying)
1
Ammonium Acryloyldimethyltaurate/VP Copolymer
(Viscosity Controlling)
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
1
Phytosphingosine
(Hair Conditioning, Skin Conditioning)
1
A
Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
A
Oleic Acid
(Fragrance, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Oleic Acid., Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
Hydroxyacetophenone
(Antioxidant)
1
B
Polyglyceryl-4 Oleate
(Emulsifying)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
2
A
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Glyceryl Oleate
(Fragrance, Skin Conditioning, Emollient, Emulsifying, Surfactant, Perfuming)
Fungal Acne
Fungal Acne Trigger
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
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
Hydrogenated Rapeseed Alcohol
(Emollient, Hair Conditioning, Skin Conditioning, Viscosity Controlling)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
1
Sodium Phytate
(Chelating Agent, Oral Care Agent)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
Caprylhydroxamic Acid
(Chelating Agent)

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
Butylene Glycol
Skin Conditioning, Humectant
Squalane
Emollient, Skin Conditioning
Sodium Stearoyl Glutamate
Skin Conditioning
Ceramide NP
Skin Conditioning
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning

Benefits

Good for dry 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
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Sodium Stearoyl Glutamate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioningSurfactant - cleansingagentEmulsifying
Ammonium Acryloyldimethyltaurate/VP Copolymer
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity controlling
Dipropylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentMaskingViscosity controlling
Ceramide NP
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Cholesterol
Emulsion stabilising, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingSkin conditioningViscosity increasing agentEmollientEmulsifyingStabilisingViscosity controlling
Phytosphingosine
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Hydroxyacetophenone
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Polyglyceryl-4 Oleate
Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Emulsifying
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity controlling
Hydrogenated Lecithin
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Skin conditioningEmulsifyingSurfactantSuspending agent- nonsurfactant
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
+ 7 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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Stearic Acid
Fragrance, Sufactant
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSufactantEmulsifyingSurfactantsurfactant-cleansing agent is included as a function for the soap form of stearic acid.Emulsion stabilisingMaskingRefatting Bad for Oily SkinFungal-acne trigger
Oleic Acid
Fragrance, Sufactantsurfactant-cleansing agent is included as a function for the soap form of oleic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSufactantsurfactant-cleansing agent is included as a function for the soap form of oleic acid.EmollientEmulsifying Fungal-acne trigger
Glyceryl Oleate
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningEmollientEmulsifyingSurfactantPerfuming 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

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

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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