Kerastase Genesis Serum Anti-Chute Fortifiant, 3.04 fl.oz.
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This hair serum contains several beneficial ingredients like caffeine, niacinamide, and ginger root extract, which support scalp health and hair growth. However, it also includes potentially harmful components such as denatured alcohol, benzyl alcohol, and synthetic fragrance, which can be drying or irritating to the scalp. The presence of BHT, a synthetic antioxidant with potential health concerns, further impacts the overall ingredient safety.
Key ingredients 30
Piroctone OlamineGood
Piroctone Olamine is an antifungal agent used to treat dandruff and other scalp conditions. It helps to reduce flakiness and improve scalp health. It is considered effective and safe for use in hair care products.
Risks
Rarely, it may cause irritation or allergic reactions.
Benefits
Helps in reducing dandruff and improving scalp health.
ArginineGood
Arginine is an amino acid that helps to strengthen hair and improve elasticity. It is beneficial for maintaining healthy hair structure. It is generally considered safe and effective in hair care products.
Benefits
Strengthens hair and improves elasticity.
NiacinamideGood
Niacinamide is a form of Vitamin B3 that has anti-inflammatory and moisturizing properties. It can improve the overall health of the scalp and hair. It is widely regarded as beneficial in cosmetic formulations.
Risks
Minimal risks when used in appropriate concentrations.
Benefits
Improves scalp health and provides moisture.
Zingiber Officinale Root ExtractGood
Ginger root extract is known for its anti-inflammatory and antioxidant properties. It can help to soothe the scalp and promote healthy hair growth. It is generally considered beneficial in hair care formulations.
Risks
Minimal risks when used topically.
Benefits
Soothes the scalp and promotes hair growth.
ResveratrolGood
Resveratrol is an antioxidant that helps to protect the hair and scalp from environmental damage. It is beneficial for maintaining healthy hair and scalp. It is generally considered safe and effective.
Risks
Minimal risks when used topically.
Benefits
Protects hair and scalp from environmental damage.
TocopherolGood
Tocopherol, or Vitamin E, is an antioxidant that helps to protect the hair and scalp from oxidative stress. It is beneficial for maintaining healthy hair and scalp. It is widely regarded as safe and effective in cosmetic formulations.
Risks
Minimal risks when used in appropriate concentrations.
Benefits
Protects hair and scalp from oxidative stress.
Aqua/Water/EauNeutral
Water is a common solvent used in many cosmetic products. It helps to dissolve other ingredients and provides a base for the formulation. It does not have any direct benefits or risks associated with its use.
Risks
There are no significant risks associated with water in cosmetic formulations.
Benefits
Water acts as a solvent and helps in the application of the product.
Diaminopyrimidine OxideNeutral
Diaminopyrimidine Oxide is used in hair care products for its potential to improve hair density. It is not widely studied, so its efficacy and safety are not well established. It is generally considered safe in cosmetic formulations.
Risks
Limited research on long-term effects.
Benefits
May help in improving hair density and reducing hair loss.
Ammonium Polyacryloyldimethyl TaurateNeutral
This ingredient is used as a thickening agent in cosmetic formulations. It helps to stabilize emulsions and improve the texture of the product. It is generally considered safe for use in cosmetics.
Benefits
Improves product texture and stability.
Citric AcidNeutral
Common acidulant and preservative — safe at typical use levels, neither beneficial nor harmful.
Risks
May cause irritation in sensitive individuals.
Benefits
Helps in pH balance and provides mild exfoliation.
PEG-40 Hydrogenated Castor OilNeutral
This ingredient is used as an emulsifier and surfactant in cosmetic products. It helps to mix oil and water-based ingredients. It is generally considered safe but may cause irritation in some individuals.
Risks
Potential for irritation in sensitive skin.
Benefits
Improves product consistency and application.
CaffeineNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
Risks
Minimal risks when used topically.
Benefits
May promote hair growth and improve scalp circulation.
Pyridoxine HclNeutral
Pyridoxine Hcl, or Vitamin B6, is used in hair care products for its potential to improve hair health. It is not extensively studied for topical use, but it is generally considered safe. It does not have significant direct benefits or risks.
Risks
Limited research on topical efficacy.
Benefits
May support overall hair health.
Safflower GlucosideNeutral
Safflower Glucoside is used as an emollient and conditioning agent in hair care products. It helps to improve the texture and feel of the hair. It is generally considered safe and effective.
Benefits
Conditions and softens the hair.
Benzyl SalicylateNeutral
Benzyl Salicylate is used as a fragrance ingredient and UV light absorber in cosmetic products. It is generally considered safe but can cause allergic reactions in some individuals. It does not provide direct benefits to hair health.
Risks
Potential allergen for sensitive skin.
Benefits
Provides fragrance and UV protection.
CoumarinNeutral
Coumarin is a fragrance ingredient used to impart a sweet scent to cosmetic products. It is generally considered safe but can cause allergic reactions in sensitive individuals. It does not have direct benefits for hair health.
Risks
Potential allergen for sensitive individuals.
Benefits
Adds a sweet fragrance to products.
XylitylglucosideNeutral
Xylitylglucoside is used as a humectant and moisturizing agent in cosmetic products. It helps to retain moisture in the hair and scalp. It is generally considered safe and effective.
Benefits
Helps to retain moisture in the hair and scalp.
CitronellolNeutral
Citronellol is a fragrance ingredient used to impart a floral scent to cosmetic products. It is generally considered safe but can cause allergic reactions in some individuals. It does not provide direct benefits to hair health.
Risks
Potential allergen for sensitive individuals.
Benefits
Adds a floral fragrance to products.
Benzyl BenzoateNeutral
Benzyl Benzoate is used as a fragrance ingredient and solvent in cosmetic products. It is generally considered safe but can cause irritation in sensitive individuals. It does not provide direct benefits to hair health.
Risks
Potential irritant for sensitive skin.
Benefits
Acts as a solvent and fragrance component.
AnhydroxylitolNeutral
Anhydroxylitol is used as a moisturizing agent in cosmetic products. It helps to improve the hydration of the hair and scalp. It is generally considered safe and effective.
Benefits
Improves hydration of hair and scalp.
XylitolNeutral
Xylitol is used as a humectant and moisturizing agent in cosmetic products. It helps to retain moisture in the hair and scalp. It is generally considered safe and effective.
Benefits
Helps to retain moisture in the hair and scalp.
Sodium CitrateNeutral
Sodium Citrate is used as a buffering agent to maintain the pH of cosmetic products. It is generally considered safe and does not provide direct benefits to hair health. It helps to stabilize the formulation.
Benefits
Maintains product stability and pH balance.
Aminomethyl PropanolBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
Potential irritation if used in high concentrations.
Benefits
Helps maintain the stability and effectiveness of the product.
LimoneneBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
Potential allergen and irritant for sensitive skin.
Benefits
Provides a pleasant citrus scent.
LinaloolBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
Potential allergen for sensitive individuals.
Benefits
Adds a pleasant floral scent to products.
CitralBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
Potential allergen for sensitive skin.
Benefits
Provides a fresh lemon scent.
Benzyl AlcoholBad
Benzyl Alcohol is used as a preservative and solvent in cosmetic products. It can be drying and irritating to the skin and scalp. Its use is generally discouraged in high concentrations.
Risks
Can cause dryness and irritation.
Benefits
Acts as a preservative and solvent.
BHTBad
BHT is a synthetic antioxidant used to preserve the shelf life of cosmetic products. It has been associated with potential health concerns, including endocrine disruption. Its use is generally discouraged in high concentrations.
Risks
Potential endocrine disruptor and allergen.
Benefits
Helps to preserve the product and prevent oxidation.
Alcohol DenatVery Bad
Denatured alcohol is often used as a solvent and astringent in cosmetic products. It can be drying to the skin and hair, leading to potential irritation. Its use is generally discouraged in high concentrations.
Risks
Can cause dryness and irritation to the scalp and hair.
Benefits
Helps in quick drying of the product and acts as a preservative.
Parfum/FragranceVery Bad
Synthetic fragrances are used to impart scent to cosmetic products. They can contain a mixture of chemicals that may cause irritation or allergic reactions. Their use is generally discouraged due to potential health concerns.
Risks
Potential irritant and allergen.
Benefits
Provides a pleasant scent to the product.
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