Best Kerastase Hair Serums of 2025

The Kérastase 8H Magic Serum is a nourishing overnight treatment designed specifically for dry hair. This lightweight serum features anti-dryness polymers that provide immediate care, ensuring your hair feels soft and revitalised by morning. As you sleep, it protects your hair from frizz and pillow friction, maintaining shine and strength. With essential nutrients in its formula, you can enjoy the convenience of waking up to healthier, more manageable hair without the need to rinse in the morning.

Kérastase Genesis Homme Serum is specially formulated to combat hair loss. Enriched with Aminexil, Ginger Root, and Creatine, this serum strengthens hair at the roots, helping to improve its resistance to breakage. By using this product, you can enjoy reduced hair fall and promote healthier hair. For best results, apply it to your scalp morning or evening for at least six weeks, massaging it in for optimal absorption. This serum is designed to make your hair feel stronger and revitalised.

The Kérastase Genesis Hair Serum is an effective daily treatment designed for those experiencing hair loss and thinning. Enriched with Aminexil, Ginger Root, and Caffeine, it revitalises your hair from the roots, helping to calm and reduce any scalp irritation you may encounter. By strengthening the hair fibre from root to tip, this serum promotes healthy hair growth by activating nutrient microcirculation. Following a simple 30-day treatment plan, you can apply it once daily and style your hair as usual without rinsing.

The Kérastase Sérum Thérapiste is expertly formulated to strengthen and heal overstressed and very damaged hair. With its unique blend of oil and cream, enriched with Fibra-Kap technology, this serum encourages new hair fibre growth while deeply moisturising your locks. You will notice a remarkable repair of split ends from the very first application, and it offers heat protection up to 230°C, ensuring your hair remains safe during styling. Simply apply it from mid-length to the tips of your hair for optimal results.

The Kérastase Split Ends Serum is a nourishing solution designed for dry hair with split ends. Its ultra-concentrated formula replenishes and nourishes your hair, offering an instant smooth and even appearance. You will appreciate the improved shine it provides, making your hair look healthier. Additionally, this serum creates a protective barrier that locks in nutrients, helping to combat dryness effectively. Simply apply a few drops to wet ends as a leave-in treatment for best results.

The KERASTASE Genesis Serum is a 3 oz hair serum designed to strengthen and nourish your hair. This serum targets hair weakness, helping to reduce breakage and promote healthier strands. By incorporating this product into your routine, you can enjoy smoother, more manageable hair. Additionally, it works to protect your hair from environmental damage, giving you peace of mind as you style. With its convenient size, it's ideal for on-the-go use, allowing you to maintain your hair's vitality wherever you are.

The Blond Absolu Serum is a heat-protective leave-in treatment designed for highlighted or lightened hair. Enriched with Hyaluronic Acid and Edelweiss Flower, it restores damaged hair fibres, helping to smooth split ends and provide a healthy shine. This serum protects your hair from heat up to 230 degrees Celsius, ensuring it remains safe from styling tools and environmental stressors. By applying just a few pumps to towel-dried or dry hair, you can enjoy deeply nourished and luminous locks.

The Kérastase Chroma Serum is designed specifically for sensitised or damaged colour-treated hair. It moisturises and reduces porosity, ensuring that your hair remains protected from external damage. Enriched with Lactic Acid and Centella Asiatica, this serum enhances shine while effectively fighting frizz. You can also safeguard your hair from UV damage and heat up to 230 degrees Celsius, helping to maintain vibrant colour for longer. Simply apply 6-10 sprays on damp hair for optimal results.

The Kérastase Anti-Frizz Serum is designed to deeply repair damaged hair while protecting it from further breakage. Whether you've styled with heat, over-processed, or treated your hair with colour, this serum works to restore your locks. Formulated with peptides, it penetrates the inner layers of your hair, helping to refill and repair the surface. By applying this leave-in serum to dry hair, you can shield your strands from damage and heat up to 230°C, ensuring your hair stays vibrant and healthy.

The Kérastase Scalp Serum is an exceptional moisturising treatment for dry scalps. Infused with niacinamide and essential vitamins, it deeply nourishes your hair, providing an immediate hydration boost that leaves your scalp feeling revitalised and comfortable. Its milky texture absorbs quickly, ensuring no greasy residue is left behind. Simply apply it section by section on a dry or damp scalp and massage for an even distribution. This serum can be used as often as needed, making it a convenient addition to your hair care routine.