Hydration+ Serum Stick

RoC

Where to buy Possibly in stock

About this product

The RoC Hydration+ Serum Stick is a serums, essence, ampoule. Our analysis of its 30 ingredients (25 low-risk) rates it Excellent (97/100). 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
30
Low-risk
25
Fragrance
Fragrance-free
Origin
France

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 10/5
Good for dry skin
Saccharide Isomerate Silica Dimethyl Silylate Butylene Glycol Sodium Hyaluronate Glycerin Fructooligosaccharides Bis-PEG-18 Methyl Ether Dimethyl Silane PEG-8 Lactic Acid Potassium Lactate
Caution for dry skin
Sodium Stearate Silica Dimethyl Silylate Glycerin PPG-24-Glycereth-24 Silica
Oily/Acne-Prone Skin No data
Sensitive Skin 2/7
Good for sensitive skin
Glycerin Copper Gluconate
Caution for sensitive skin
Sodium Citrate Butylene Glycol Glycerin Phenethyl Alcohol Citric Acid Potassium Sorbate Lactic Acid

Ingredients list

30 total
Lower hazard (1) Higher hazard (4)
All30 Skin Conditioning19 Humectant10 Solvent8 Fragrance6 Viscosity Controlling5 Masking4 Buffering Agent4 Chelating Agent3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Propanediol
(Solvent, Viscosity Decreasing 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
1
A
Sodium Stearate
(Sufactant, Emulsifying, Surfactant, Viscosity Increasing Agent, Viscosity Controlling)
1
PPG-24-Glycereth-24
(Solvent, Emulsifying, Surfactant)
3
A
PEG-12 Dimethicone
(Hair Conditioning, Skin Conditioning)
3
Bis-PEG-18 Methyl Ether Dimethyl Silane
(Humectant, Foam Boosting, Hydrotrope, Emollient, Hair Conditioning, Skin Conditioning)
3
A
PEG-8
(Humectant, Solvent)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Copper Tripeptide-1
(Skin Conditioning)
Sh-Polypeptide-121
(Film Forming, Skin Conditioning)
Beta Vulgaris Root Extract
(Skin Conditioning)
SPIRODELA POLYRHIZA EXTRACT
(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
1
Saccharide Isomerate
(Humectant)
2
Copper Gluconate
(Skin Conditioning, Skin Protecting)
1
Fructooligosaccharides
(Humectant, Skin Conditioning)
4
B
Potassium Lactate
(Buffering Agent, Exfoliant, Humectant, Skin Conditioning)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
1
Hydroxypropyl Tetrahydropyrantriol
(Skin Conditioning)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
1
Trisodium Ethylenediamine Disuccinate
(Chelating Agent)
1
B
Silica Dimethyl Silylate
(Anticaking Agent, Bulking Agent, Slip Modifier, Suspending Agent Nonsurfactant, Viscosityincreasing Agent Nonaqueous, Antifoaming Agent, Emollient, Emulsion Stabilising, Viscosity Controlling)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
B
Phenethyl Alcohol
(Fragrance, Preservative, Masking)
1
A
1,2-Hexanediol
(Solvent)
1
Caprylhydroxamic Acid
(Chelating 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

Butylene Glycol
Skin Conditioning, Humectant
Glycerin
Humectant, Skin Protecting
PEG-12 Dimethicone
Skin Conditioning
Bis-PEG-18 Methyl Ether Dimethyl Silane
Humectant, Emollient
PEG-8
Humectant
Sodium Hyaluronate
Skin Conditioning, Humectant

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
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Sodium Stearate
Sufactant, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A SufactantEmulsifyingSurfactantViscosity increasing agentViscosity controlling
PPG-24-Glycereth-24
Solvent, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 SolventEmulsifyingSurfactant
PEG-12 Dimethicone
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioning
Bis-PEG-18 Methyl Ether Dimethyl Silane
Humectant, Foam boosting
Low-to-moderate hazard.Read moreShow less
EWG 3 HumectantFoam boostingHydrotropeEmollientHair conditioningSkin conditioning
PEG-8
Humectant, Solvent
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A HumectantSolvent
Copper Tripeptide-1
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
Sh-Polypeptide-121
Film forming, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Film formingSkin conditioning
Beta Vulgaris Root Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
SPIRODELA POLYRHIZA EXTRACT
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Saccharide Isomerate
Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Humectant
Copper Gluconate
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 2 Skin conditioningSkin protecting
Fructooligosaccharides
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioning
Potassium Lactate
Buffering agent, Exfoliant
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR B Buffering agentExfoliantHumectantSkin conditioning
+ 10 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling 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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant 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
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: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Evening, start slow: Best in the PM a few times a week to begin with; avoid layering with other strong actives the same night.
  • 3 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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