St-Care Serum

Orin

Where to buy Possibly in stock

About this product

The Orin St-Care Serum is a serums, essence, ampoule. Our analysis of its 45 ingredients (34 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
45
Low-risk
34
Fragrance
Fragrance-free
Origin
Japan

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 6/7
Good for dry skin
Dipotassium Glycyrrhizate Butylene Glycol Glycerin Pantolactone Camellia Sinensis Leaf Extract Aloe Barbadensis Flower Extract
Caution for dry skin
Decyl Glucoside Centella Asiatica Extract Xanthan Gum Glycerin t-Butyl Alcohol Hydrogenated Lecithin Camellia Sinensis Leaf Extract
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Camellia Sinensis Leaf Extract
Sensitive Skin 8/7
Good for sensitive skin
Madecassoside Centella Asiatica Extract Asiaticoside Melia Azadirachta Leaf Extract Glycerin Camellia Sinensis Leaf Extract Allantoin Aloe Barbadensis Flower Extract
Caution for sensitive skin
Succinic Acid Asiaticoside Butylene Glycol Glycerin t-Butyl Alcohol Tromethamine Camellia Sinensis Leaf Extract

Ingredients list

45 total
Lower hazard (1) Higher hazard (3)
All45 Skin Conditioning38 Solvent8 Fragrance8 Viscosity Controlling7 Humectant6 Emulsion Stabilising6 Perfuming5 Skin Protecting5
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)
1
A
1,2-Hexanediol
(Solvent)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
Dimethyl Sulfone
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
Diethoxyethyl Succinate
(Solvent)
1
A
Succinic Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
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
Ammonium Polyacryloyldimethyl Taurate
(Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
2
A
Tromethamine
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
1
Polyacrylate Crosspolymer-6
(Emulsion Stabilising, Viscosity Controlling)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
2
A
t-Butyl Alcohol
(Denaturant, Fragrance, Solvent, Perfuming)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
1
Melia Azadirachta Leaf Extract
(Antimicrobial, Skin Protecting)
1
Pantolactone
(Humectant)
1
Melia Azadirachta Flower Extract
(Skin Conditioning)
Pinellia Ternata Extract
(Skin Conditioning)
1
Coccinia Indica Fruit Extract
(Skin Conditioning)
1
Houttuynia Cordata Extract
(Skin Conditioning)
1
B
Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant)
Solanum Melongena Fruit Extract
(Skin Conditioning)
1
3
B
Aloe Barbadensis Flower Extract
(Emollient, Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
glycyrrhiza glabra root extract
(Bleaching, Perfuming, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing)
1
B
Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic)
1
Madecassoside
(Antioxidant, Skin Conditioning)
Ocimum Basilicum Leaf Extract
(Skin Conditioning)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
Curcuma Longa Root Extract
(Fragrance, Perfuming)
1
Corallina Officinalis Extract
(Skin Conditioning)
2
A
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant)
salix alba bark extract
(Astringent, Hair Conditioning, Skin Conditioning, Soothing, Tonic)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
Mentha Suaveolens Leaf Extract
(Astringent, Skin Conditioning)
1
Melissa Officinalis Leaf Extract
(Skin Conditioning)
Mentha Piperita Leaf Extract
(Skin Conditioning)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
Asiaticoside
(Antioxidant, Skin Conditioning, Perfuming)
1
Madecassic Acid
(Skin Conditioning)
1
Asiatic Acid
(Skin Conditioning, Stabilising)

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

Butylene Glycol
Skin Conditioning, Humectant
Niacinamide
Skin Conditioning
Glycerin
Humectant, Skin Protecting
Panthenol
Skin Conditioning
Allantoin
Skin Conditioning, Skin Protecting
Xanthan Gum
Skin Conditioning

Benefits

Good for oily/acne-prone skin
Good for sensitive skin

Concerns

Not fungal acne (malassezia) safe
May not suit dry 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
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Dimethyl Sulfone
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Diethoxyethyl Succinate
Solvent
Limited public safety data.Read moreShow less
EWG N/A Solvent
Succinic Acid
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragrancePh adjusterBuffering agentMasking
Ammonium Polyacryloyldimethyl Taurate
Emulsion stabilising, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity increasing agentViscosity controlling
Tromethamine
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A FragrancePh adjusterBuffering agentMasking
Polyacrylate Crosspolymer-6
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity controlling
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
t-Butyl Alcohol
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceSolventPerfuming
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
Disodium EDTA
Chelating agent, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentViscosity controlling
+ 24 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
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning 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
Aloe Barbadensis Flower Extract
Emollient, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 1–3 CIR B EmollientSkin conditioning Good for Sensitive Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

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.

Niacinamide 2–5% (up to 10%)

Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.

Niacinamide

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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