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A rainy morning can wreck probably the most best coiffure. Hair turns into frizzy, curls fall aside and directly hair turns into hopelessly wavy. It is not accident or the dryer: it is natural chemistry. However what precisely is occurring within every hair that makes water so robust?
Every strand is basically shaped from keratin, a fibrous protein wealthy in sulfur that accumulates, above all, within the outermost layers of the hair: the cuticle and the cortex. Those spaces supply hair with resistance, elasticity and form, and are subsequently maximum delicate to moisture and warmth.
Hair construction. Alfabellezza/Wikimedia Commons
Keratin chains are held in combination through tens of millions of chemical bonds which are grouped into 3 varieties: disulfide, ionic, and hydrogen. Every of them has a distinct serve as within the look and behaviour of the hair.
Hydrogen bonds that act like Velcro
Disulfide bonds, shaped between sulfur atoms (-SS-), are covalent bonds and, subsequently, very robust. They shape the structural pillar of hair fibers. In directly hair, they’re dispensed frivolously, whilst in curly hair, spaces with a better density of those bonds seem, which reasons the fiber to bend or twist.
Disulfide bonds can simplest be damaged through chemical processes, reminiscent of straightening or perm therapies, which use lowering merchandise, reminiscent of ammonium thioglycolate, to damage them down. By way of the usage of them, the…
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Author : bq3anews
Publish date : 2025-10-29 01:40:00
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