The Beauty & Personal Care Brand Builder Series

Product Review

Genesis Serum Fortifiant Hair Serum | Manufacturing and Formulation Insights

Kérastase Genesis hair serum bottle with dropper, pink gradient container on white background.

This page provides an ingredient-level review of Genesis Serum Fortifiant Hair Serum by Kérastase. Below you’ll find the publicly available ingredient list, a dynamic ingredient breakdown linked to the FormuNova ingredient database, and a formula structure overview intended for cosmetic founders, product developers, and brand teams researching competitor product architecture in modern hair growth and related Beauty & Personal Care categories. This page is a formulation and manufacturing review and does not imply or state any association between FormuNova and Kérastase.

Full Ingredient List

Aqua/Water/Eau, Alcohol Denat, Diaminopyrimidine Oxide, Ammonium Polyacryloyldimethyl Taurate, Aminomethyl Propanol, Citric Acid, PEG-40 Hydrogenated Castor Oil, Piroctone Olamine, Caffeine, Arginine, Limonene, Niacinamide, Pyridoxine HCl, Linalool, Safflower Glucoside, Benzyl Salicylate, Coumarin, Citral, Benzyl Alcohol, Xylitylglucoside, Citronellol, Benzyl Benzoate, Anhydroxylitol, Xylitol, Zingiber Officinale Root Extract, Resveratrol, Tocopherol, BHT, Sodium Citrate, Parfum/Fragrance

Formulation Deep Dive

The Kérastase Genesis Serum Fortifiant Hair Serum is a high-performance hydro-alcoholic scalp treatment engineered to reinforce hair fibers and optimize the follicular environment. The carrier system utilizes a volatile Alcohol Denat base to facilitate rapid penetration and a non-greasy finish, balanced by a humectant complex of Xylitylglucoside, Anhydroxylitol, and Xylitol for essential scalp hydration. Active performance is driven by Diaminopyrimidine Oxide to combat perifollicular fibrosis, synergistic with Caffeine for micro-circulation and Niacinamide (Vitamin B3) to bolster the epidermal barrier. Additionally, Arginine provides essential amino acid support while Zingiber Officinale (Ginger) Root Extract and Resveratrol offer potent antioxidant protection against oxidative stress. The formulation is stabilized by Ammonium Polyacryloyldimethyl Taurate, creating a sophisticated polymer network that ensures uniform active delivery and optimal viscosity.

Formula Structure Overview

This formula has a 53% match with ingredients from our research database. Among the matched ingredients, the main functional themes identified are categorized as barrier support, antioxidant, anti-inflammatory agent, and anti-aging agent ingredients.

Reviewed Ingredient Coverage

53%

Matched Ingredients

Barrier Support

Antioxidant

Anti-Inflammatory Agent

Anti-Aging Agent

Ingredient Analysis

About our ratings

Water GREAT

Purified water serves as the primary, high-quality solvent in most cosmetics.

Solvent

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SDA 40B Alcohol FAIR

To serve as a solvent and evaporation‑modulating agent that improves product clarity, delivery, and drying characteristics in topical cosmetics.

Texture Enhancer Volume Control Agent Cleansing Agent Astringent Barrier Support Oil Control Agent Solvent

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Diaminopyrimidine Oxide NOT RATED

Ammonium Polyacryloyldimethyl Taurate NOT RATED

Aminomethyl Propanol NOT RATED

Citric Acid GOOD

Acts mainly as a pH adjuster and buffer and as a chelating agent that protects formula stability and preservation; at higher leave-on levels it also serves as a mild exfoliating AHA.

Chelating Agent Exfoliant

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PEG-40 Hydrogenated Castor Oil GOOD

To facilitate the formation of stable emulsions and sols, improve mixing of oil and water phases, and enhance texture and performance of skincare and haircare formulas.

Texture Enhancer Cleansing Agent Emulsifier Solvent

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Piroctone Olamine NOT RATED

Caffeine GOOD

To reduce puffiness and dark circles, improve skin tone, and stimulate hair growth.

Antioxidant Strengthener Anti-Inflammatory Agent Tone Evener Anti-Aging Agent Blood Flow Modulator

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L-Arginine GREAT

Enhances skin hydration, supports collagen synthesis, promotes hair growth, and strengthens hair fibers.

Hydrator Conditioner Antioxidant Strengthener Soother Barrier Support Anti-Aging Agent Blood Flow Modulator

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Limonene NOT RATED

Niacinamide GREAT

To enhance skin and scalp health by improving barrier function, reducing inflammation, and providing antioxidant protection.

Hydrator Moisturizer Antioxidant Strengthener Anti-Inflammatory Agent Barrier Support Oil Control Agent Tone Evener Anti-Aging Agent

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Pyridoxine HCl NOT RATED

Linalool NOT RATED

Safflower Glucoside NOT RATED

Benzyl Salicylate NOT RATED

Coumarin NOT RATED

Citral NOT RATED

Benzyl Alcohol NOT RATED

Xylitylglucoside GREAT

Increase cutaneous water content and help maintain a well-hydrated, comfortable skin surface.

Hydrator Moisturizer Texture Enhancer Conditioner Barrier Support

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Citronellol NOT RATED

Benzyl Benzoate NOT RATED

Anhydroxylitol GOOD

Increase water content of skin or hair fibers and support epidermal barrier metrics when used alone or within the XAX (xylitylglucoside + anhydroxylitol + xylitol) system.

Hydrator Moisturizer Texture Enhancer Conditioner Barrier Support

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Xylitol GOOD

Increase water content in the stratum corneum/scalp and support barrier integrity through humectancy and NMF-linked pathways.

Hydrator Moisturizer Soother Anti-Inflammatory Agent Microbiome Balance Agent Barrier Support

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Zingiber Officinale (Ginger) Root Extract GOOD

To calm inflammation, neutralize oxidative stress, even skin tone, refine texture, regulate sebum production, and improve scalp and hair integrity.

Texture Enhancer Astringent Antioxidant Soother Anti-Inflammatory Agent Tone Evener

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Resveratrol GREAT

To protect skin and scalp from oxidative stress, reduce inflammation, and support long-term skin aging prevention.

Antioxidant Anti-Inflammatory Agent Tone Evener Anti-Aging Agent

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Tocopherol (Vitamin E) GREAT

To provide antioxidant protection, moisturize and condition the skin and hair, support the skin’s barrier function, soothe irritation, and protect against environmental damage.

Moisturizer Emollient Conditioner Antioxidant Soother Barrier Support Anti-Aging Agent

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BHT FAIR

Protect the oil phase and oil-soluble actives from autoxidation to maintain color, odor, viscosity, and performance throughout shelf life.

Antioxidant Preservative

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Sodium Citrate GOOD

To adjust and maintain the pH of cosmetic products, chelate metal ions to enhance formulation stability, and act as a mild <a href="https://formunova.com/product/preservative-effectiveness-test/">preservative</a>.

Preservative Chelating Agent

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Fragrance FAIR

The aromatic component of a cosmetic — a blended scent that defines a product’s smell and sensory experience, used within IFRA safe-use limits and with required allergen declaration.

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The information provided in this review is based on internal research and publicly available sources. It is intended for general informational purposes only and does not constitute medical, legal, or regulatory advice. We do not guarantee the accuracy or completeness of this information. Users are encouraged to conduct their own research and consult appropriate professionals before making decisions based on this information.

The manufacturing partners for Kérastase are not publicly disclosed. Many brands work with multiple contract manufacturers across different regions depending on production volume, product type, and regulatory requirements.

Exact sales numbers for Kérastase are not publicly disclosed.

Kérastase has successfully captured market share by focusing on a successful balance of marketing and formulation.

Replicating that success requires more than just copying a formula, it requires identifying a marketing strategy that is unique to your brand’s audience, associated with a great product offering.

At FormuNova, we specialize in helping brands move past imitation to create high-performance product offerings with potential to outperform the current market leaders. Let’s discuss your launch strategy.

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This page provides an independent ingredient analysis of publicly available cosmetic products for research purposes. All trademarks, brand names, and product names are the property of their respective owners. FormuNova does not claim to be affiliated with, endorsed by, or sponsored by the brands mentioned on this page. Product images, when shown, are used solely for identification and commentary under fair use principles.