Hyaluronic Acid 2% + B5 Hydrating Serum

cyrene

Hyaluronic Acid 2% + B5 Hydrating Serum

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About this product

The cyrene Hyaluronic Acid 2% + B5 Hydrating Serum is a serums, essence, ampoule. Our analysis of its 18 ingredients (17 low-risk) rates it Excellent (94/100). 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
Serums, Essence, Ampoules
Ingredients
18
Low-risk
17
Fragrance
Fragrance-free
Origin
Türkiye
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 7/2
Good for dry skin
Sodium Hyaluronate Crosspolymer Caprylyl Glycol Sodium Hyaluronate Glycerin Trehalose Hyaluronic Acid Urea
Caution for dry skin
Glycerin Phenol
Oily/Acne-Prone Skin No data
Sensitive Skin 1/5
Good for sensitive skin
Glycerin
Caution for sensitive skin
Disodium Phosphate Serine Algin Glycerin Phenol

Ingredients list

18 total
Lower hazard (1) Higher hazard (7)
All18 Skin Conditioning13 Humectant9 Fragrance5 Solvent4 Antistatic Agent4 Hair Conditioning4 Film Forming4 Masking3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
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
Trehalose
(Flavoring Agent, Humectant, Moisturising)
3
A
Urea
(Buffering Agent, Humectant, Antistatic Agent, Skin Conditioning)
1
A
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
3
A
Glyceryl Polyacrylate
(Film Forming)
1
A
Algin
(Binding Agent, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling)
Bad for Sensitive Skin
Bad for Sensitive Skin
Bad for Oily Skin
Bad for Oily Skin
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Pullulan
(Binding Agent, Film Forming, Binding)
1
B
Disodium Phosphate
(Buffering Agent, Anticorrosive, Fragrance, Ph Adjuster, Masking)
1
B
Potassium Phosphate
(Ph Adjuster, Buffering Agent)
7
Phenol
(Antimicrobial Agent, Cosmetic Biocide, Denaturant, Deodorant, Exfoliant, Externalanalgesic, Fragrance, Oral Health Care Drug, Preservative)

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

Hyaluronic Acid
Hydrates by attracting and holding water.
Urea
Gently exfoliates and deeply moisturizes.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Scar HealingImproves the look of marks and scars.
Anti-AgingSoftens lines and helps skin look youthful.
Redness ReducingSoothes visible redness and calms irritation.
Reduces IrritationEases discomfort and supports skin resilience.
Skin TextureSmooths rough patches and refines texture.
Show all 7 benefits

Concerns

Not fungal acne (malassezia) safe
Phenol — higher EWG
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Hyaluronic Acid
Skin conditioning, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningViscosity increasing agentAntistatic agentHumectantMoisturising
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Sodium Hyaluronate Crosspolymer
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioning
Trehalose
Flavoring agent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentHumectantMoisturising
Urea
Buffering agent, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Buffering agentHumectantAntistatic agentSkin conditioning
Serine
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceHair conditioningSkin conditioningAntistatic agentMasking
Glyceryl Polyacrylate
Film forming
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Film forming
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Pullulan
Binding agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFilm formingBinding
Disodium Phosphate
Buffering agent, Anticorrosive
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Buffering agentAnticorrosiveFragrancePh adjusterMasking
Potassium Phosphate
Ph adjuster, Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Ph adjusterBuffering agent
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
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
Algin
Binding agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFragranceViscosity increasing agentBindingMaskingViscosity controlling Bad for Sensitive SkinBad for Oily Skin
Phenol
Antimicrobial agent, Cosmetic biocide
Higher-hazard ingredient.Read moreShow less
EWG 7 Antimicrobial agentCosmetic biocideDenaturantDeodorantExfoliantExternalanalgesicFragranceOral health care drugPreservative

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 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.

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