Sebastian Professional Penetraitt Overnight Repair Serum with Hyaluronic Acid & Niacinamide | Moisturizing Leave-in Treatment for Dry, Damaged Hair | 3.2 fl oz

Overnight Repairing Serum: Works while you sleep to restore and repair hair from within. 

Hyaluronic Acid & Niacinamide Infusion: Deeply hydrates, plumps dry strands, and strengthens hair structure. 

Instant Moisturization: Provides deep hydration to hair fiber, helping to reduce dryness and brittleness. 

Soft, Smooth, Manageable Hair: Leaves hair feeling softer, smoother, and easier to style in the morning.

Lightweight, Non-Greasy Formula: Designed not to weigh hair down or feel sticky overnight. 

Leave‑In Use — No Rinse Needed: Apply before bed and leave it in; no rinsing required in the morning. 

Ideal for Damaged or Dry Hair: Especially beneficial for hair that has been stressed by heat, coloring, or environmental exposure.