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Mechanism of Hair Dying
About Your Hair
Human Hair is a protein fiber made
of two layers. The inner layer called cortex contains melanin. Melanin is a
pigment which gives your hair shades of blonde, black, auburn or brown. Cortex
is covered by another layer called cuticle. Cuticle provides protection to
cortex and luster to your hair. Cuticle is inert in nature so it cannot
biologically or chemically absorb any color.
Mechanism of Hair Dying
By Chemical Dye:
Most of the chemical dyes contain
bleaching agents such as ammonia and/or peroxide which damage the outer most
layer and create capillaries in hair shaft. Then PPD, OPD, MPD like chemical
color fills these capillaries, enter in the inner layer and remain stuck
inside, as permanent color. The next application again does the same on hair
shaft. This results in loss of strength, roughness and permanent damage to
hair.
By Natural Dye:
Natural
Dye colors hair by coating the hair shaft. It provides thickness to hair and
stick as a semi-permanent color. The next application again does the same and
results in increase in strength and shine in your hair.
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