Hair Shaft | Hair Color Science | Day-2 | Hair Color Theory In Hindi | Cuticle | Cortex | Pigments |
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- เผยแพร่เมื่อ 29 ก.ย. 2024
- Hair Shaft | Hair Color Science | Day-2 | Hair Color Theory In Hindi | Cuticle | Cortex | Pigments
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The structure of hair :-
Hair shaft
CUTICLE = Is the outermost layer of the hair. It consists of a single, overlapping layers of transparent, scale, similar way to the scales of fish with their free end pointing towards the trip of the hair.
CORTEX = About 80% of total weight comes from cortex. The elasticity, natural color and the unique protein structures located within the cortex. The changes involved in oxidation hair coloring, permanent waving and chemical hair relaxing take place within the cortex.
MEDULLA = is the innermost layer. It is composed of round cells. It is quite common for very fine and naturally blonde hair to entirely lack of medulla, only thick, coarse hair contains a medulla.
THE BONDS :-
1. Hydrogen bond = is a physical side bond that is easily broken by water or heat. Athough individual hydrogen bonds are very weak, there are so many of them they account for about one third of the hair's overall strength.
2. Salt bond = is also a physical side bond, but it is broken by changes in ph. Salt bonds are easily broken by strong alkaline or acidic solutions and account for about one third of the hairs overall strength.
3. Di-sulfide bond = Disulfied bond is a chemical side bond. They are not broken by heat or water. Permanent waves and chemical hair relaxers changes the shape of hair by chemically changing the hair's disulfide bonds. This permanent relaxers break disulfide bonds, which are reformed by this neutralizers
Pigments - Hair has only two types of pigments: dark (eumelanin) and light (phaeomelanin). They blend together to make up the wide range of hair colors. Melanin is made up of specialized pigment cells called melanocytes. They position themselves at the openings on the skin's surface through which hair grows (follicles
Long Layered Haircut
Face Framing Layer Haircut
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Feather with layer haircut
Step hair cut
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3 step hair cut
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Patle balo pe hair cut kaise kare
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Hair cutting sikhe 5 minutes me
Haircutting ke fayde
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Thank u sir
Thank you Saif sir video ke liye
Sir dil se shukriya apse aj bhut kuch sikha
Thank u sir itni deep jankari ke liye
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Main pichle 5 sal se kam kr rha hu lekin itna nhi pta tha jitna aj sikha thank u sir❤❤
Thanks sir
Very nice
Very nice
Thank u aap ke Samjane ka tarika bohot acha h
Wase to Mera salon se koi wo nahi hai par aap ki video dekh kar pata chala ke hamara hair asa hota wow very deep ❤