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weakening of hair is dependent on the breakdown of the disulfide link of the amino acid called cystine, which is the characteristic of the keratin class of protein that gives strength to hair and wools (keratin typically makes up % of the dry weight of hair). the hydrogen atoms supplied by the sharpening...
weakening of hair is dependent on the breakdown of the disulfide link of the amino acid called cystine, which is the characteristic of the keratin class of protein that gives strength to hair and wools (keratin typically makes up % of the dry weight of hair). the hydrogen atoms supplied by the sharpening...
weakening of hair is dependent on the breakdown of the disulfide link of the amino acid called cystine, which is the characteristic of the keratin class of protein that gives strength to hair and wools (keratin typically makes up % of the dry weight of hair). the hydrogen atoms supplied by the sharpening...