The TRESemmé Color Vibrancy Hair Serum (often branded as Color Vibrancy Aminobond+ No. 4 Hair Serum) in the 100ML size is a specialized leave-in treatment for color-treated hair.

Here are the key details about this product:

Product Name: TRESemmé Color Vibrancy Aminobond+ No. 4 Hair Serum (or TRESemmé Color Vibrancy Serum).

Size: 100ML

Core Technology: Infused with Amino Acids and utilizes Aminobond+ Technology (or similar Bonding Complex/Fade Resistance Complex).

Targeted Hair Type: Specifically designed for color-treated, dyed, or highlighted hair that is prone to damage and fading.

Primary Benefit: To protect hair color from fading and to repair the bonds in hair damaged by the coloring process.

Key Features and Benefits:

Color Protection/Fade Resistance: Helps to maintain the radiant shine and vibrancy of salon-fresh color, often claiming color lasts up to 2X longer when used with the full range.

Bond Fortification: The Aminobond+ technology works to fortify internal hair bonds that may be broken or weakened due to the chemical stress of coloring.

Shine Enhancement: Provides a salon-quality glossy finish, smoothness, and softness to the hair.

Nourishing & Lightweight: A non-greasy, non-sticky formula that nourishes the hair fiber without weighing it down.

Usage: It is a leave-in serum—dispense 1-2 pumps onto your palm, rub hands, and apply evenly through mid-lengths to ends of damp or dry hair. Do not rinse.