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1.
Abstract (summary):
Daily care damages human hair and renders cavities, or holes in the endocuticle, damage such as this to the hair can be from daily use of heat appliances. The aim of this investigation is to find out whether hair that has been damaged due to heat can be strengthened by apply a conditioner. The hair was heated at 200 degrees in an oven and once removed divided into two different groups – a group that would be treated with the conditioner and a group that wouldn’t. Once the hair had been treated or not it was then carefully placed in a sticky note to be wrapped up, making sure not to twist or bend the hair. Weights were then hung of the hair to test the strength of each, once snapped the amount they could hold was recorded.
Null hypothesis:
Hypothesis: There is a significant positive correlation between the strength of hair that has been heated and the strength of hair once it has been conditioned.
Research:
Human hair is a natural fibre that is made up largely of a protein called keratin, 80% of hair is formed by this protein. Keratin contains a high concentration of sulphur which is produced from the amino acid cystine.
Rationale:
Many women and some men are obsessed with hair care routines and mirroring sleek shiny hair styles like celebrities. The fixation with maintaining shiny hair and being able to alternate between styles has had a massive effect on the cosmetic industry. With a number of people using straighteners, curling irons or hairdryers daily many cosmetic companies such as Tresemme and Pantene have benefited from creating products that help create this look and maintain healthy hair. Although the companies claim that these products work this investigation will look into whether or not the products actually help maintain strong healthy hair or if once the hair has been damaged from heat it’s no possible