Scalp Exfoliating Shampoo

Rahua

Where to buy Possibly in stock

About this product

The Rahua Scalp Exfoliating Shampoo is a emulsion. Our analysis of its 27 ingredients (20 low-risk) rates it Excellent (98/100).

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Emulsion
Ingredients
27
Low-risk
20
Fragrance
Fragrance-free
Origin
United States

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
Sucrose Plukenetia Volubilis Seed Oil Glycerin Lactic Acid Oenocarpus Bataua Seed Oil Coco-Caprylate
Caution for dry skin
Disodium Cocoyl Glutamate Sodium Methyl Cocoyl Taurate Sodium Cocoyl Glutamate Sodium Cocoyl Isethionate Xanthan Gum Kaolin Glycerin
Oily/Acne-Prone Skin No data
Sensitive Skin 5/6
Good for sensitive skin
Sucrose Passiflora Incarnata Fruit Extract Plukenetia Volubilis Seed Oil Kaolin Glycerin
Caution for sensitive skin
Glycine Sodium Chloride Arginine Glycerin Potassium Sorbate Lactic Acid

Ingredients list

27 total
Lower hazard (1) Higher hazard (4)
All27 Skin Conditioning15 Hair Conditioning6 Fragrance6 Viscosity Controlling5 Humectant5 Skin Protecting4 Cleansing4 Surfactant4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
Mangifera Indica Fruit Extract
(Skin Conditioning)
1
Passiflora Incarnata Fruit Extract
(Skin Conditioning, Skin Protecting)
1
B
Sodium Cocoyl Isethionate
(Cleansing, Hair Conditioning, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Coco-Betaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent, Viscosity Controlling)
Illicium Verum Fruit Oil
(Perfuming)
1
B
Sodium Methyl Cocoyl Taurate
(Cleansing, Foaming, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Sodium Cocoyl Glutamate
(Cleansing, Surfactant)
1
B
Disodium Cocoyl Glutamate
(Cleansing, Surfactant)
1
Sodium Chloride
(Bulking Agent, Masking, Oral Care 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
Oenocarpus Bataua Seed Oil
(Emollient)
1
A
Plukenetia Volubilis Seed Oil
(Emollient, Humectant, Skin Protecting)
1
A
Sucrose
(Flavoring Agent, Humectant, Skin Conditioning, Soothing)
1
Hydrolyzed Quinoa Protein
1
Mauritia Flexuosa Fruit Oil
(Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
1
A
Kaolin
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Skin Protecting, Slip Modifier)
AROMA
(Flavouring)
Cymbopogon Nardus Oil
(Fragrance, Tonic)
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
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
1
A
Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning)
B
Coco-Caprylate
(Emollient)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
A
Guar Hydroxypropyltrimonium Chloride
(Antistatic Agent, Hair Conditioning, Viscosity Increasing Agent, Film Forming, Skin Conditioning, Viscosity Controlling)

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

Mangifera Indica Fruit Extract
Skin Conditioning
Passiflora Incarnata Fruit Extract
Skin Conditioning, Skin Protecting
Coco-Betaine
Skin Conditioning
Glycerin
Humectant, Skin Protecting
Oenocarpus Bataua Seed Oil
Emollient
Plukenetia Volubilis Seed Oil
Emollient, Humectant

Benefits

No standout benefits flagged for this product.

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Mangifera Indica Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Passiflora Incarnata Fruit Extract
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningSkin protecting
Coco-Betaine
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSkin conditioningSufactantFoam boostingViscosity increasing agentViscosity controlling
Illicium Verum Fruit Oil
Perfuming
Limited public safety data.Read moreShow less
EWG N/A Perfuming
Sodium Cocoyl Glutamate
Cleansing, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSurfactant
Disodium Cocoyl Glutamate
Cleansing, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSurfactant
Sodium Chloride
Bulking agent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 Bulking agentMaskingOral care agentViscosity controlling
Oenocarpus Bataua Seed Oil
Emollient
Limited public safety data.Read moreShow less
EWG N/A Emollient
Plukenetia Volubilis Seed Oil
Emollient, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHumectantSkin protecting
Sucrose
Flavoring agent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentHumectantSkin conditioningSoothing
Hydrolyzed Quinoa Protein
Other
Low-hazard ingredient.Read moreShow less
EWG 1
Kaolin
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingSkin protectingSlip modifier
AROMA
Flavouring
Limited public safety data.Read moreShow less
EWG N/A Flavouring
Cymbopogon Nardus Oil
Fragrance, Tonic
Limited public safety data.Read moreShow less
EWG N/A FragranceTonic
+ 7 more — see the full ingredients list above
Sodium Cocoyl Isethionate
Cleansing, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingHair conditioningSurfactant Fungal-acne trigger
Sodium Methyl Cocoyl Taurate
Cleansing, Foaming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingFoamingSurfactant Fungal-acne trigger
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
Mauritia Flexuosa Fruit Oil
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning Fungal-acne trigger
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

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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