Root Lifting and Volumizing: The serum's main purpose is to lift hair at the roots, creating instant fullness and a thicker appearance. It helps to amplify fine, limp hair and is best used on clean, damp hair before blow-drying to maximize the effect.

Key Ingredients: The formula often includes a "Thicker Fuller Hair Complex" with a "triple shot of powerful botanicals." Key ingredients can include:

Caffeine: A key component in many versions of this serum, as it is known to energize and invigorate the scalp.

Organic Quinoa: This ingredient is known for its repairing and strengthening properties, helping to prevent breakage and split ends.