The scientific principles of hair gel mainly involve the adsorption and cross-linking of polymers on hair. When hair gel is applied to hair, polymer molecules quickly adsorb onto the surface of the hair, forming a uniform thin film. This film can effectively fix hair together, preventing hair from scattering and deforming. At the same time, cross-linking occurs between polymer molecules, which enhances the viscosity of hair gel and better fixes the hairstyle.

The main components of plastic hair gel include polymers, solvents, thickeners, fragrances, etc. Among them, polymers are the main functional components of hair gel, which have excellent shaping function and can maintain the hairstyle for a long time. The solvent is responsible for evenly applying the polymer and other components onto the hair. Thickener can increase the viscosity and stickiness of hair gel, making it easier to fix the hairstyle.