1 In the All or part of the file name box, type officeav.dll. 2  In the Look in box, click Local Hard Drives. 3  Click Search. When the search result is displayed in the right pane, note the path of the Officeav.dll file.  Locate the Officeav.dll file, right-click officeav.dll, and then click Rename.
The hair shaft made of a protein called keratin is tough and resistant to wear and tear. Eighteen amino acids make up the keratin of which the most abundant is the cysteine. It gives the hair much of its strength. The middle layer of the hair is the cortex. It is made up of polypeptide chains that are cross-linked with each other, by three different types of side bonds.
Are you sure it's the Cysteine? According to this paper[1] where test rats received an LD50 dose of acetaldehyde, those that received cysteine had an 80% survival rate; while those that received both cysteine and thiamine had a 100% survival rate. Thiamine and Methylthiazolidine contain sulfur (thio-/thia- is greek for sulfur) where Cysteine does not.