Deep Conditioning Repair Hair Mask

4U By Tia

Deep Conditioning Repair Hair Mask

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About this product

The 4U By Tia Deep Conditioning Repair Hair Mask is a misc. Our analysis of its 24 ingredients (16 low-risk) rates it Excellent (84/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
24
Low-risk
16
Fragrance
Contains fragrance
Origin
United States
Data updated
May 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 7/4
Good for dry skin
Cetyl Alcohol Squalane Stearyl Alcohol Salvia Hispanica Seed Extract Glycerin Triolein Yeast Amino Acids
Caution for dry skin
Cetyl Alcohol Sorbitan Olivate Stearyl Alcohol Glycerin
Oily/Acne-Prone Skin No data
Sensitive Skin 1/10
Good for sensitive skin
Glycerin
Caution for sensitive skin
Cetyl Alcohol Stearyl Alcohol Aspartic Acid Glycerin Linalool Benzyl Alcohol Benzyl Salicylate Coumarin Hydroxycitronellal Amyl Cinnamal

Ingredients list

24 total
Lower hazard (1) Higher hazard (7)
All24 Skin Conditioning12 Fragrance11 Masking8 Hair Conditioning6 Emollient5 Viscosity Increasing Agent5 Solvent5 Emulsion Stabilising4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling)
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
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
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
1
A
Triolein
(Viscosity Increasing Agent, Emollient, Refatting, Skin Conditioning, Solvent, Viscosity Controlling)
1
C13-15 Alkane
(Solvent)
1
B
Brassicamidopropyl Dimethylamine
(Hair Conditioning, Skin Conditioning)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
A
Aspartic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
B
Cetearyl Olivate
(Hair Conditioning)
1
Salvia Hispanica Seed Extract
(Emollient, Skin Conditioning)
1
A
Yeast Amino Acids
(Humectant)
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
1
A
Sorbitan Olivate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
A
Sodium Gluconate
(Chelating Agent, Skin Conditioning)
PARFUM
(Fragrance, Perfuming)
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
Amyl Cinnamal
(Perfuming)
Allergens
Allergens
7
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking)
Allergens
Allergens
7
Hydroxycitronellal
(Fragrance, Masking)
Allergens
Allergens
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens

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

Stearyl Alcohol
Emollient
Squalane
Emollient, Skin Conditioning
Glycerin
Humectant, Skin Protecting
Cetyl Alcohol
Emollient
Triolein
Emollient, Skin Conditioning
Brassicamidopropyl Dimethylamine
Skin Conditioning

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Reduces IrritationEases discomfort and supports skin resilience.
Good For Oily SkinBalances oil and helps reduce shine.
Redness ReducingSoothes visible redness and calms irritation.
Scar HealingImproves the look of marks and scars.
Dark SpotsFades dark spots for even skin tone.
Show all 7 benefits

Concerns

Contains eu allergen
Not fungal acne (malassezia) safe
Benzyl Salicylate — higher EWG
Hydroxycitronellal — higher EWG
Coumarin — 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
Stearyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceEmulsifyingSurfactant- foamboosterViscosity increasing agentEmollientFoam boostingMaskingOpacifyingRefattingViscosity controlling
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Triolein
Viscosity increasing agent, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Viscosity increasing agentEmollientRefattingSkin conditioningSolventViscosity controlling
C13-15 Alkane
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Brassicamidopropyl Dimethylamine
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioning
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
Aspartic Acid
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceHair conditioningSkin conditioningAntistatic agentMasking
Cetearyl Olivate
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioning
Salvia Hispanica Seed Extract
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientSkin conditioning
Yeast Amino Acids
Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Humectant
Sodium Gluconate
Chelating agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentSkin conditioning
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
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
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens
Sorbitan Olivate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-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
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens
Amyl Cinnamal
Perfuming
Limited public safety data.Read moreShow less
EWG N/A Perfuming Allergens
Benzyl Salicylate
Fragrance, Uv absorber
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceUv absorberMasking Allergens
Hydroxycitronellal
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens
Coumarin
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens

How to use

How to use

  • 1 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.

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