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Hair styled with hair gel. Hair gel is a hairstyle product that is used to stiffen hair into a particular hairstyle. The end result is similar to, but stronger than, those of hair spray. Hair gel is most commonly used in the hairstyling of men, but it is not gender specific. Hair gel can come in tubes, pots, small bags, or even in a spray form.
Cationic polymers are among the main functional components of hair gel. The positive charges in the polymers causes them to stretch, making the gel more viscous.Hair gels resist natural protein conformations and allow hair to be styled and textured, because the stretched-out polymer takes up more space than a coiled polymer and thus resists the flow of solvent molecules around it.
In this step, the binder becomes polymerized to consolidate the particle structure within the precursor slurry. The process then forms a gel type of mixture, which is then cast into a proper mould. The next step, after the gel solidification, it is removed from the mould in a controlled manner and then being dried to form a green body.
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An upturned vial of hair gel Silica gel. A gel is a semi-solid that can have properties ranging from soft and weak to hard and tough. [1] [2] Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady state, although the liquid phase may still diffuse through this system. [3] IUPAC definition for a gel
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Consistency and viscosity affect the adhesion and retention property of the gel, and are important in ensuring the gel is retained at the site of application and effective delivery of the drug. [ 3 ] The ingredients in topical gel formulation can be broadly categorized into four types: gelator, solvent, drug, and excipients.
Hair casts, also known as pseudonits, represent remnants of the inner root sheath, and often occur in great numbers and may mimic nits in the scalp. [ 1 ] : 764 Signs and symptoms