Treatment

Hikaruko

Where to buy Possibly in stock

About this product

The Hikaruko Treatment is a emulsion. Our analysis of its 42 ingredients (29 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Emulsion
Ingredients
42
Low-risk
29
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 14/10
Good for dry skin
Glyceryl Stearate Lanolin Cetearyl Alcohol Ethylhexyl Palmitate Caprylic/Capric Triglyceride Butylene Glycol Glycerin Cholesterol Polyquaternium-64 Hydroxypropyltrimonium Hyaluronate Hydrolyzed Silk Hydrogenated Palm Oil Lactic Acid Poly(Tripeptide-6)
Caution for dry skin
Lanolin Sodium Lauroyl Glutamate Sodium Lauroyl Lactylate Stearamidopropyl Dimethylamine Stearic Acid Xanthan Gum Caprylic Acid Glycerin Alcohol TEA-Lauroyl Glutamate
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Alcohol
Sensitive Skin 1/10
Good for sensitive skin
Glycerin
Caution for sensitive skin
Dodecane Stearic Acid Ethylhexyl Palmitate Caprylic/Capric Triglyceride Caprylic Acid Butylene Glycol Glycerin Alcohol Lactic Acid Phenoxyethanol

Ingredients list

42 total
Lower hazard (1) Higher hazard (4)
All42 Skin Conditioning27 Hair Conditioning15 Emulsion Stabilising9 Fragrance9 Emulsifying9 Humectant8 Viscosity Controlling8 Emollient7
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
B
Stearamidopropyl Dimethylamine
(Antistatic Agent, Emulsifying, Hair Conditioning, Surfactant)
1
Caprylic Acid
(Fragrance, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Caprylic Acid., Emulsifying, Masking, Perfuming)
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
Ethylhexyl Palmitate
(Fragrance, Skin Conditioning, Emollient, Perfuming)
Fungal Acne
Fungal Acne Trigger
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
2
A
Hydrogenated Palm Oil
(Viscosity Increasing Agent, Emollient, Emulsifying, Skin Conditioning, Viscosity Controlling)
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
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
A
Lanolin
(Emulsion Stabilising, Hair Conditioning, Skin Conditioning, Emollient, Skinprotectant, Emulsifying, Surfactant, Antistatic Agent)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Caprylhydroxamic Acid
(Chelating Agent)
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
1
Dodecane
(Perfuming)
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
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
2
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
TEA-Lauroyl Glutamate
(Cleansing, Hair Conditioning, Surfactant)
lavandula angustifolia oil
(Fragrance, Tonic)
1
B
Sodium Lauroyl Glutamate
(Antistatic Agent, Hair Conditioning, Surfactant)
1
Silk
(Bulking Agent)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
Symphytum Officinale Leaf Extract
(Skin Conditioning)
1
Hydroxypropyltrimonium Hyaluronate
(Film Forming, Humectant)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
Pyrrolidinyl Diaminopyrimidine Oxide
(Hair Waving Or Straightening)
1
Sodium Lauroyl Lactylate
(Emulsifying, Surfactant)
Tosyl Valine
(Hair Conditioning, Skin Conditioning)
1
A
Hydrolyzed Silk
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
Ceramide EOP
(Hair Conditioning, Skin Conditioning)
1
Polyquaternium-64
(Hair Conditioning, Humectant)
Poly(Tripeptide-6)
(Humectant)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
Ceramide AP
(Hair Conditioning, Skin Conditioning)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
1
Phytosphingosine
(Hair Conditioning, Skin Conditioning)
Hematin
(Hair Conditioning)
Gamma-Docosalactone
(Hair Conditioning, Skin Conditioning)

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

Cetearyl Alcohol
Emollient
Glycerin
Humectant, Skin Protecting
Ethylhexyl Palmitate
Skin Conditioning, Emollient
Glyceryl Stearate
Emollient
Hydrogenated Palm Oil
Emollient, Skin Conditioning
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning

Benefits

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

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Stearamidopropyl Dimethylamine
Antistatic agent, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentEmulsifyingHair conditioningSurfactant
Caprylic Acid
Fragrance, Sufactantsurfactant-cleansing agent is included as a function for the soap form of caprylic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSufactantsurfactant-cleansing agent is included as a function for the soap form of caprylic acid.EmulsifyingMaskingPerfuming
Hydrogenated Palm Oil
Viscosity increasing agent, Emollient
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Viscosity increasing agentEmollientEmulsifyingSkin conditioningViscosity controlling
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Lanolin
Emulsion stabilising, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingHair conditioningSkin conditioningEmollientSkinprotectantEmulsifyingSurfactantAntistatic agent
Caprylhydroxamic Acid
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agent
Ceramide NP
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Dodecane
Perfuming
Low-hazard ingredient.Read moreShow less
EWG 1 Perfuming
SIMMONDSIA CHINENSIS SEED OIL
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioningSkin conditioning emollient
Carbomer
Emulsion stabilising, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingViscosity increasing agentGel formingViscosity controlling
TEA-Lauroyl Glutamate
Cleansing, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A CleansingHair conditioningSurfactant
lavandula angustifolia oil
Fragrance, Tonic
Limited public safety data.Read moreShow less
EWG N/A FragranceTonic
Sodium Lauroyl Glutamate
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSurfactant
+ 19 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
Ethylhexyl Palmitate
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B FragranceSkin conditioningEmollientPerfuming Fungal-acne trigger
Glyceryl Stearate
Emollient, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientEmulsifying Fungal-acne trigger
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
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling 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
Alcohol
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 2 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad 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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