Thickening Biotin Caffeine Shampoo

Tree to Tub

Thickening Biotin Caffeine Shampoo

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About this product

The Tree to Tub Thickening Biotin Caffeine Shampoo is a misc. Our analysis of its 27 ingredients (14 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
27
Low-risk
14
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 2/6
Good for dry skin
Argania Spinosa Kernel Oil Hydrolyzed Jojoba Esters
Caution for dry skin
Decyl Glucoside Sodium Lauryl Sulfoacetate Hydrolyzed Jojoba Esters Sodium Lauroyl Sarcosinate Menthol Propylene Glycol Caprylate
Oily/Acne-Prone Skin 0/1
Caution for oily/acne-prone skin
Hydrolyzed Jojoba Esters
Sensitive Skin 4/3
Good for sensitive skin
Ascorbyl Palmitate Tocopheryl Acetate Menthol Aloe Barbadensis Leaf Juice
Caution for sensitive skin
Ascorbyl Palmitate Eucalyptus Globulus Leaf Oil Menthol

Ingredients list

27 total
Lower hazard (1) Higher hazard (5)
All27 Skin Conditioning23 Hair Conditioning7 Fragrance5 Surfactant5 Antistatic Agent4 Antioxidant3 Cleansing3 Film Forming3
EWG CIR Ingredient Name & Cosmetic Functions Notes
Sapindus Mukorossi Seed
(Skin Conditioning)
B
Aloe Barbadensis Leaf Juice
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
4
B
Cocamidopropyl Betaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent, Viscosity Controlling)
3
B
Sodium Lauroyl Sarcosinate
(Antistatic Agent, Cleansing, Emulsifying, Foaming, Hair Conditioning, Skin Conditioning, Surfactant, Viscosity Controlling)
1
A
Sodium Lauryl Sulfoacetate
(Cleansing, Foaming, Surfactant)
Sulfate
Sulfate
Propylene Glycol Caprylate
(Skin Conditioning, Surfactant)
1
B
Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant)
1
A
Hydrolyzed Jojoba Esters
(Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning Agent Occlusive, Emulsifying, Surfactant, Skin Conditioning)
1
Tetrasodium Glutamate Diacetate
(Chelating Agent)
1
Serenoa Serrulata Fruit Extract
(Lytic Agent, Skin Conditioning)
1
A
Biotin
(Hair Conditioning, Skin Conditioning, Antiseborrhoeic)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous)
A
Pantothenic Acid
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
1
A
Ascorbyl Palmitate
(Antioxidant, Masking)
Fungal Acne
Fungal Acne Trigger
5
Cholecalciferol
(Skin Conditioning)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
Coffea Arabica Seed Extract
(Fragrance, Skin Conditioning)
1
A
Argania Spinosa Kernel Oil
(Emollient, Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
Cucurbita Pepo Seed Oil
(Skin Conditioning, Skin Conditioning Emollient)
Melaleuca Alternifolia Leaf Oil
(Antioxidant, Perfuming)
Salvia Officinalis Leaf Water
(Fragrance, Skin Conditioning)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
1
Menthol
(Denaturant, External Analgesic, Flavoring Agent, Fragrance, Oral Health Caredrug, Masking, Refreshing, Soothing)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
Bad for Dry Skin
Bad for Dry Skin
2
Eucalyptus Globulus Leaf Oil
(Perfuming, Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
citrus aurantium dulcis peel oil
(Fragrance, Skin Conditioning)
1
Polyquaternium-67
(Antistatic Agent, Film Forming, Hair 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

Sapindus Mukorossi Seed
Skin Conditioning
Aloe Barbadensis Leaf Juice
Skin Conditioning
Cocamidopropyl Betaine
Skin Conditioning
Sodium Lauroyl Sarcosinate
Skin Conditioning
Propylene Glycol Caprylate
Skin Conditioning
Hydrolyzed Jojoba Esters
Skin Conditioning

Benefits

Good for sensitive skin

Concerns

Contains sulfate
Not fungal acne (malassezia) safe
May not suit dry skin
May not suit oily/acne-prone skin

Ingredients explained

Sapindus Mukorossi Seed
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Cocamidopropyl Betaine
Antistatic agent, Hair conditioning
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR B Antistatic agentHair conditioningSkin conditioningSufactantFoam boostingViscosity increasing agentViscosity controlling
Sodium Lauroyl Sarcosinate
Antistatic agent, Cleansing
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentCleansingEmulsifyingFoamingHair conditioningSkin conditioningSurfactantViscosity controlling
Propylene Glycol Caprylate
Skin conditioning, Surfactant
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSurfactant
Decyl Glucoside
Cleansing, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingEmulsion stabilisingSurfactant
Hydrolyzed Jojoba Esters
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFilm formingHair conditioningSkin-conditioning agent -occlusiveEmulsifyingSurfactantSkin conditioning
Tetrasodium Glutamate Diacetate
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agent
Serenoa Serrulata Fruit Extract
Lytic agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Lytic agentSkin conditioning
Biotin
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningAntiseborrhoeic
Retinyl Palmitate
Skin conditioning, Skin conditioning miscellaneous
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning miscellaneous
Pantothenic Acid
Antistatic agent, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR A Antistatic agentHair conditioningSkin conditioning
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Coffea Arabica Seed Extract
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
Cucurbita Pepo Seed Oil
Skin conditioning, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning emollient
Melaleuca Alternifolia Leaf Oil
Antioxidant, Perfuming
Limited public safety data.Read moreShow less
EWG N/A AntioxidantPerfuming
+ 4 more — see the full ingredients list above
Aloe Barbadensis Leaf Juice
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning Good for Sensitive Skin
Sodium Lauryl Sulfoacetate
Cleansing, Foaming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A CleansingFoamingSurfactant Sulfate
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Ascorbyl Palmitate
Antioxidant, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntioxidantMasking Fungal-acne trigger
Cholecalciferol
Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 5 Skin conditioning
Argania Spinosa Kernel Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientSkin conditioning Fungal-acne trigger
Menthol
Denaturant, External analgesic
Potentially a skin irritantRead moreShow less
EWG 1 DenaturantExternal analgesicFlavoring agentFragranceOral health caredrugMaskingRefreshingSoothing Good for Oily SkinBad for Sensitive SkinBad for Dry Skin
Eucalyptus Globulus Leaf Oil
Perfuming, Skin conditioning
Strong essential oil which can irritate skinRead moreShow less
EWG 2 PerfumingSkin conditioning Bad 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

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

Ascorbyl Palmitate

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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