Boyzone-All That I Need Mp3
Download ->->->-> https://ssurll.com/2tddsL
Certain topical drug products can irritate the skin and scalp and can accelerate aging of the scalp. The mass aggregation state of hair is represented by the so-called hair surface integrity (HSI) determined by optical method. It characterizes the extent of damage to the cuticle and this is closely related to the loss of the natural SOAW index on the fiber. Just as chemical damage plays a role in the production of damages of the hair, mechanical factors also have an influence on the extent of these damages. Chemical damages are caused by the action of external factors such as synthetic coloring products on the hair. External factors and damage alter the properties (moisture concentration of the bambino hair, depending on the water content in the hair) and the morphology (index of oxidized protein, cuticle, hair shaft and hair cuticle) of the hair.[13,14,15,16]
Hair is composed of a protein fiber cortex cell (protein-polymer) and a lipid matrix. The chemical structure of proteins forms an irreversible bilayer that is why it is called a "hard" polar biopolymers. A linear chain is composed of an aliphatic chain, formed by aliphatic carbon chains and hydrophobic groups called amino acids. The protein chains are wrapped around the lipid matrix. They have a hydrophilic outer surface and a hydrophobic center. The hydrophilic Center has a polar functional region (hydrophilic group) and uncharged hydrophobic portion (hydrophobic group). Each amino acid has two substitutable and two non-substitutable – CH2 groups, bearing hydrophilic and hydrophobic properties. Each amino acid is always connected to more than one other amino acids because they are assembled in a chain. It is more exposed to the outside, as it is hydrophilic. This is why the protein is very hydrated.[21]
On the surface of the protein, there are ionic groups, charged or uncharged polar groups, either positive or negative, that are arranged in a continuous chain. The polar groups that bind to the water molecules adhere to each other (cohesion) and form a water film. d2c66b5586