Stress Relief Shampoo

50 Megumi

Where to buy Possibly in stock

About this product

The 50 Megumi Stress Relief Shampoo is a misc. Our analysis of its 86 ingredients (54 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
86
Low-risk
54
Fragrance
Contains fragrance
Origin
Japan
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 27/8
Good for dry skin
Glycol Distearate Glutamic Acid Dipotassium Glycyrrhizate Macadamia Ternifolia Seed Oil Betaine Equisetum Arvense Extract Soluble Collagen Sucrose Sea Salt Argania Spinosa Kernel Oil Panax Ginseng Root Extract Caprylic/Capric Triglyceride Butylene Glycol Sodium PCA Glycerin Cholesterol Trehalose Haberlea Rhodopensis Leaf Extract Hydrolyzed Silk Hydrolyzed Collagen Sodium Lactate PCA PEG-7 Glyceryl Cocoate Diethyl Sebacate Aloe Barbadensis Leaf Extract Soluble Collagen Crosspolymer Hydrolyzed Soy Protein
Caution for dry skin
Sodium Lauroyl Methylaminopropionate Equisetum Arvense Extract Glycerin Polyglyceryl-10 Myristate Sodium C14-16 Olefin Sulfonate Alcohol TEA-Cocoyl Glutamate PEG-7 Glyceryl Cocoate
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Equisetum Arvense Extract Alcohol
Sensitive Skin 9/22
Good for sensitive skin
Hypnea Musciformis Extract Equisetum Arvense Extract Sucrose Panax Ginseng Root Extract Undaria Pinnatifida Extract Glycerin BHT Alaria Esculenta Extract Aloe Barbadensis Leaf Extract
Caution for sensitive skin
Glutamic Acid Dipropylene Glycol Serine Sodium Chloride Sea Salt Alanine Arginine Caffeine Caprylic/Capric Triglyceride Butylene Glycol Glycerin Threonine Proline Pinus Sylvestris Cone Extract Citric Acid Alcohol Sodium Benzoate Phenoxyethanol BHT Cocamide DEA Diethyl Sebacate Isodonis Japonicus Leaf/Stalk Extract

Ingredients list

86 total
Lower hazard (1) Higher hazard (7)
All86 Skin Conditioning72 Hair Conditioning24 Fragrance21 Humectant21 Masking16 Antistatic Agent14 Emollient12 Viscosity Controlling12
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
B
Lauramidopropyl Betaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
2
B
TEA-Cocoyl Glutamate
(Cleansing, Hair Conditioning, Surfactant)
1
Sodium Lauroyl Methylaminopropionate
(Cleansing, Emulsifying, Surfactant)
2
B
Sodium C14-16 Olefin Sulfonate
(Cleansing, Foaming, Surfactant)
Sulfate
Sulfate
7
B
Cocamide DEA
(Foam Boosting, Viscosity Increasing Agent, Emulsifying, Emulsion Stabilising, Viscosity Controlling)
1
A
Glycol Distearate
(Opacifying, Viscosity Increasing Agent, Emollient, Emulsifying, Skin Conditioning, Viscosity Controlling)
Fungal Acne
Fungal Acne Trigger
1
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
PARFUM
(Fragrance, Perfuming)
1
A
Polyquaternium-10
(Antistatic Agent, Film Forming, Hair Fixing)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
B
Polyquaternium-47
(Film Forming, Hair Fixing, Skin Conditioning)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
4
B
PEG-7 Glyceryl Cocoate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Macadamia Ternifolia Seed Oil
(Emollient)
2
Etidronic Acid
(Chelating Agent)
6
A
BHT
(Antioxidant, Fragrance, Masking)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Sea Salt
(Abrasive, Humectant, Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
1
A
Argania Spinosa Kernel Oil
(Emollient, Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
Caffeine
(Fragrance, Skin Conditioning, Masking)
A
Hydrolyzed Soy Protein
(Antistatic Agent, Hair Conditioning, Humectant, Skin Conditioning)
Simmondsia Chinensis Seed Cera
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient, Viscosity Controlling)
A
Diethyl Sebacate
(Emollient, Masking, Plasticizer, Skin Conditioning, Solvent)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
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
Quaternium-33
(Antistatic Agent, Hair Conditioning)
Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous)
Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient)
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
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
1
A
Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant)
1
B
Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
Haberlea Rhodopensis Leaf Extract
(Humectant, Skin Conditioning)
1
Polyglyceryl-10 Myristate
(Skin Conditioning, Emulsifying, Surfactant)
3
B
Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic)
Alaria Esculenta Extract
(Hair Conditioning, Skin Protecting)
3
B
PCA
(Humectant, Moisturising)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
Kjellmaniella Crassifolia Powder
(Humectant, Skin Conditioning)
1
Yeast Extract
(Skin Conditioning)
Ceramide AS
(Hair Conditioning, Skin Conditioning)
1
Hypnea Musciformis Extract
(Skin Protecting)
Ceramide NS
(Hair Conditioning, Skin Conditioning)
1
Undaria Pinnatifida Extract
(Skin Conditioning, Skin Protecting)
1
A
Hydrolyzed Silk
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant)
Humulus Lupulus Extract
(Antimicrobial, Antiperspirant, Fragrance, Hair Conditioning, Skin Conditioning, Skin Protecting)
1
A
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Alanine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
Paeonia Suffruticosa Extract
(Skin Conditioning)
Ulmus Davidiana Root Extract
(Skin Conditioning)
1
Equisetum Arvense Extract
(Astringent, Emollient, Soothing, Tonic)
Cichorium Intybus Leaf Extract
(Fragrance, Skin Conditioning)
Brassica Oleracea Italica Extract
(Astringent)
Apium Graveolens Extract
(Skin Conditioning)
2
Pinus Sylvestris Cone Extract
(Masking, Perfuming)
Gamma-Docosalactone
(Hair Conditioning, Skin Conditioning)
Hizikia Fusiforme Extract
(Skin Conditioning)
1
A
Glutamic Acid
(Fragrance, Hair Conditioning, Humectant, Antistatic Agent)
Malva Sylvestris Flower Extract
(Skin Conditioning)
1
A
Threonine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Hair Waving Or Straightening)
Soluble Collagen Crosspolymer
(Emollient)
1
Soluble Collagen
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Film Forming, Humectant)
Succinoyl Atelocollagen
(Skin Conditioning)
Pueraria Thunbergiana Root Extract
(Skin Conditioning)
1
A
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Panax Ginseng Root Extract
(Emollient, Hair Conditioning, Skin Protecting, Tonic)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
Citrus Limon Fruit Extract
(Fragrance, Skin Conditioning)
1
Collagen
(Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
Isodonis Japonicus Leaf/Stalk Extract
(Masking, Skin Conditioning)
1
Chlorella Vulgaris Extract
(Skin Conditioning)
Glycine Soja Seed Extract
(Skin Conditioning)
1
3
B
Aloe Barbadensis Leaf Extract
(Emollient, Humectant, Oral Care Agent, Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
1
B
Citrus Junos Fruit Extract
(Skin Conditioning)
1
Tilia Cordata Flower Extract
(Skin Conditioning)
1
A
Proline
(Fragrance, Hair Conditioning, Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
A
Sucrose
(Flavoring Agent, Humectant, Skin Conditioning, Soothing)
1
Molasses
(Skin Conditioning)
Raffinose
(Skin Conditioning)
1
A
Trehalose
(Flavoring Agent, Humectant, Moisturising)

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

Ceramides
Locks in moisture and supports skin barrier.
Antioxidants
Shields skin from free radical damage.
AHA
Exfoliates skin for a brighter complexion.
Retinoid
Visibly reduces the signs of aging.
Vitamin E
Protects skin and soothes irritation.
Exfoliators
Removes dead skin cells to smoothe texture.
Show all 6 key ingredients

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Reduces IrritationEases discomfort and supports skin resilience.
Barrier RepairStrengthen and restore your skin's natural barrier.
Anti-AgingSoftens lines and helps skin look youthful.
Redness ReducingSoothes visible redness and calms irritation.
Scar HealingImproves the look of marks and scars.
Dark SpotsFades dark spots for even skin tone.
BrighteningRestores radiance to dull, tired skin.

Concerns

Contains paraben
Contains sulfate
Not fungal acne (malassezia) safe
Cocamide DEA — 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
Lauramidopropyl Betaine
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSkin conditioningSufactantFoam boostingViscosity increasing agentViscosity controlling
Dipropylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentMaskingViscosity controlling
TEA-Cocoyl Glutamate
Cleansing, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 2 CIR B CleansingHair conditioningSurfactant
Sodium Lauroyl Methylaminopropionate
Cleansing, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CleansingEmulsifyingSurfactant
Sodium Chloride
Bulking agent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 Bulking agentMaskingOral care agentViscosity controlling
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Polyquaternium-10
Antistatic agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentFilm formingHair fixing
Sodium Benzoate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservativeAnticorrosiveMasking
Polyquaternium-47
Film forming, Hair fixing
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Film formingHair fixingSkin conditioning
Macadamia Ternifolia Seed Oil
Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 Emollient
Etidronic Acid
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 2 Chelating agent
Disodium EDTA
Chelating agent, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentViscosity controlling
Sea Salt
Abrasive, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveHumectantBulking agentMaskingOral care agentViscosity controlling
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
+ 57 more — see the full ingredients list above
Sodium C14-16 Olefin Sulfonate
Cleansing, Foaming
Low-hazard ingredient.Read moreShow less
EWG 2 CIR B CleansingFoamingSurfactant Sulfate
Cocamide DEA
Foam boosting, Viscosity increasing agent
Higher-hazard ingredient.Read moreShow less
EWG 7 CIR B Foam boostingViscosity increasing agentEmulsifyingEmulsion stabilisingViscosity controlling
Glycol Distearate
Opacifying, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A OpacifyingViscosity increasing agentEmollientEmulsifyingSkin conditioningViscosity controlling Fungal-acne trigger
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
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
PEG-7 Glyceryl Cocoate
Skin conditioning, Emollient
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR B Skin conditioningEmollientEmulsifyingSurfactant Fungal-acne trigger
BHT
Antioxidant, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A AntioxidantFragranceMasking
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Argania Spinosa Kernel Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientSkin conditioning Fungal-acne trigger
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
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 PCA
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioning Good for Dry Skin
Collagen
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning Good for Dry Skin
Aloe Barbadensis Leaf Extract
Emollient, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 1–3 CIR B EmollientHumectantOral care agentSkin conditioning Good for Sensitive Skin

How to use

How to use

  • 1 Evening: Use at night — start 2–3× a week and build up as your skin tolerates it.
  • 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

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Retinyl Palmitate)

Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Retinoids (Vitamin A) 0.01–1%

Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.

Retinyl Palmitate

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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