Genesis Fortifying Serum
The Kérastase Genesis Fortifying Serum is a misc. Our analysis of its 28 ingredients (15 low-risk) rates it Great (78/100). 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.
The Kérastase Genesis Fortifying Serum is a misc. Our analysis of its 28 ingredients (15 low-risk) rates it Great (78/100). 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.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
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Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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PEG-40 Hydrogenated Castor Oil
(Fragrance, Emulsifying, Surfactant, Perfuming) |
Fungal Acne Trigger
|
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Calcium Pantothenate
(Antistatic Agent, Hair Conditioning) |
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Caffeine
(Fragrance, Skin Conditioning, Masking) |
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Pyridoxine HCl
(Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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Polyquaternium-11
(Antistatic Agent, Film Forming, Hair Fixing) |
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Safflower Glucoside
(Hair Conditioning) |
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Benzyl Salicylate
(Fragrance, Uv Absorber, Masking) |
Allergens
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Coumarin
(Fragrance, Masking) |
Allergens
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Citral
(Flavoring Agent, Fragrance, Masking) |
Allergens
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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
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Xylitylglucoside
(Humectant, Skin Conditioning) |
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Citronellol
(Fragrance, Masking) |
Allergens
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Benzyl Benzoate
(Fragrance, Solvent, Antimicrobial, Masking) |
Allergens
|
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Anhydroxylitol
(Humectant, Skin Conditioning) |
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Xylitol
(Flavoring Agent, Humectant, Skin Conditioning) |
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Zingiber Officinale Root Extract
(Fragrance, Perfuming, Skin Conditioning, Tonic) |
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Resveratrol
(Antioxidant, Skin Protecting) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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BHT
(Antioxidant, Fragrance, Masking) |
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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PARFUM
(Fragrance, Perfuming) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
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 →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
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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