Smooth Proof Serum

Biolage

Where to buy Possibly in stock

About this product

The Biolage Smooth Proof Serum is a misc. Our analysis of its 19 ingredients (4 low-risk) rates it Good (52/100). 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
19
Low-risk
4
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 4/0
Good for dry skin
Dimethiconol Camellia Kissi Seed Oil Caprylic/Capric Triglyceride Dimethicone
Oily/Acne-Prone Skin No data
Sensitive Skin 1/15
Good for sensitive skin
Dimethicone
Caution for sensitive skin
Caprylic/Capric Triglyceride Linalool Benzyl Alcohol Citronellol Alpha-Isomethyl Ionone Hexyl Cinnamal Limonene Benzyl Benzoate Butylphenyl Methylpropional Cinnamyl Alcohol Isoeugenol Geraniol Coumarin Hydroxycitronellal Amyl Cinnamal

Ingredients list

19 total
Lower hazard (1) Higher hazard (7)
All19 Masking11 Fragrance11 Skin Conditioning6 Perfuming6 Emollient4 Solvent4 Flavoring Agent2 Deodorant2
EWG CIR Ingredient Name & Cosmetic Functions Notes
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
A
Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising)
Silicone
Silicone
PARFUM
(Fragrance, Perfuming)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Hexyl Cinnamal
(Fragrance, Masking)
Allergens
Allergens
1
A
Camellia Kissi Seed Oil
(Skin Conditioning, Emollient)
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
7
Butylphenyl Methylpropional
(Perfuming)
Allergens
Allergens
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
7
Hydroxycitronellal
(Fragrance, Masking)
Allergens
Allergens
Amyl Cinnamal
(Perfuming)
Allergens
Allergens
7
Geraniol
(Fragrance, Masking, Tonic)
Allergens
Allergens
5
Alpha-Isomethyl Ionone
(Perfuming, Skin Conditioning)
Allergens
Allergens
7
Isoeugenol
(Flavoring Agent, Fragrance, Masking)
Allergens
Allergens
6
A
Benzyl Benzoate
(Fragrance, Solvent, Antimicrobial, Masking)
Allergens
Allergens
7
Cinnamyl Alcohol
(Flavoring Agent, Fragrance, Masking)
Allergens
Allergens
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens

My Ingredient Notes

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Key ingredients

Dimethicone
Skin Protecting, Emollient
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning
Dimethiconol
Skin Conditioning, Emollient
Camellia Kissi Seed Oil
Skin Conditioning, Emollient
Alpha-Isomethyl Ionone
Skin Conditioning

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Scar HealingImproves the look of marks and scars.
Barrier RepairStrengthen and restore your skin's natural barrier.

Concerns

Contains silicone
Contains eu allergen
Coumarin — higher EWG
Butylphenyl Methylpropional — higher EWG
Hydroxycitronellal — 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

Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Camellia Kissi Seed Oil
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningEmollient
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Dimethiconol
Antifoaming agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentSkin conditioningEmollientMoisturising Silicone
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Hexyl Cinnamal
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens
Coumarin
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens
Butylphenyl Methylpropional
Perfuming
Higher-hazard ingredient.Read moreShow less
EWG 7 Perfuming Allergens
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens
Hydroxycitronellal
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens
Amyl Cinnamal
Perfuming
Limited public safety data.Read moreShow less
EWG N/A Perfuming Allergens
Geraniol
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMaskingTonic Allergens
Alpha-Isomethyl Ionone
Perfuming, Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 5 PerfumingSkin conditioning Allergens
Isoeugenol
Flavoring agent, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 Flavoring agentFragranceMasking Allergens
Benzyl Benzoate
Fragrance, Solvent
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A FragranceSolventAntimicrobialMasking Allergens
Cinnamyl Alcohol
Flavoring agent, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 Flavoring agentFragranceMasking Allergens
+ 1 more — see the full ingredients list above

How to use

How to use

  • 1 Morning & evening: Suitable for both AM and PM use.

General guidance from this product's category and active ingredients — always follow the directions on the package.

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