Keratin is an especially impervious protein structure. Observation and study of your own hair is a very good analogy for understanding the hardiness of this particular protein. During the recent trials of study in decomposition, chemical penetration of hair itself represents an excellent example of the challenge of examination of the environmental filaments and their internals. Numerous trials were conducted using strong solutions of sulphuric acid, sodium hydroxide, nitric acid, salicylic acid, sodium hypochlorite (bleach), ammonium thioglycolate and others. All essentially met with failure to the degree needed with the time available. Although some mild success was achieved with a hair sample, the environmental filament sample remained essentially impervious to almost all methods. The best success of decomposition has eventually come forth with the use of a commercial hair declogger used in plumbing systems. This solution is primarily a combination of concentrated sodium hydroxide and concentrated potassium hydroxide. This solutions is highly caustic. The greater success of this method also becomes dependent upon the use of applied heat over an extended time period. It was with the use of this method that valid comparisons, both chemically and spectroscopically, could be made. Considerable work remains before us to acquire the detailed biochemical knowledge of the internal nature of the environmental filaments; this work will continue as the proper resources and equipment avail themselves.