Genesis Fortifying Weakened Hair Serum - 3 oz

Reignite your hair’s natural resilience and combat seasonal or stress-induced shedding with Kérastase Genesis Fortifying Weakened Hair Serum. Specifically developed for fine or weakened strands prone to falling due to breakage, this high-performance daily treatment reinforces hair fibers right at the root. Its weightless, fluid texture absorbs instantly into the scalp without leaving a trace of greasy residue, making it an effortless addition to both morning and evening routines. By targeting micro-irritation and re-anchoring weakened strands within the follicle, it drastically reduces hair loss while fostering an optimal environment for future growth.

Infused with a potent blend of Aminexil 1.5%, Edelweiss Native Cells, and Ginger Root, this nourishing elixir provides a multi-tiered defense against daily environmental stressors and mechanical damage. The invigorating, silky formula soothes scalp discomfort, strengthens the natural moisture barrier, and visibly restores body and volume from root to tip. Hair instantly feels softer, appears noticeably denser, and moves with renewed bounce and vitality—allowing you to brush, style, and go with total confidence.

Designed for daily leave-in application on wet or dry scalps, this targeted serum transforms limp, fragile strands into a lush, full-bodied crown. Its signature botanical fragrance wraps your hair in a subtle, luxurious aura that lasts throughout the day, turning everyday scalp care into a pampering salon-grade ritual. Experience a visible transformation in density, reduced shedding on your brush, and enduring hair health with every drop.

Targeted Fiber Anchoring: Powered by a high-potency 1.5% Aminexil blend that reinforces root attachment, significantly reducing hair fall caused by daily styling breakage and scalp stress.

Scalp & Fiber Shield: Infused with antioxidant-rich Edelweiss Native Cells and Ginger Root to protect the scalp environment against harsh external aggressors and daily oxidative degradation.

Weightless Fluid Texture: Features a clear, fast-absorbing gel-serum formula that glides onto dry or damp scalps without weighing hair down or leaving greasy, sticky residue behind.

Soothing Barrier Care: Calms scalp irritation and reinforces the moisture barrier to nourish the hair bulb, encouraging stronger, fuller, and more resilient hair growth over time.

Luxurious Fragrance Experience: Imparts a lingering, elevated salon-grade fragrance while enhancing natural root volume, shine, and touchable softness for an effortless, healthy finish.