Abstract: A hair straightening and/or hair relaxing method comprising: applying a hair care composition to hair, wherein the composition comprises a sugar, a buffering agent and a cosmetically acceptable carrier; and wherein, where the composition is heated to a temperature of at least 100° C., the composition comprises from about 6% to about 20% reducing sugar; hair drying; providing a hair straightening appliance at a temperature of from about 100° C. to about 280° C. and mechanically straightening the hair with the appliance.

Abstract: A hair straightening and/or hair relaxing method comprising: applying a hair care composition to hair, wherein the composition comprises a sugar, a buffering agent and a cosmetically acceptable carrier; and wherein, where the composition is heated to a temperature of at least 100° C., the composition comprises from about 6% to about 20% reducing sugar; hair drying; providing a hair straightening appliance at a temperature of from about 100° C. to about 280° C. and mechanically straightening the hair with the appliance.

Abstract: A biological safety system includes a life-support cell, a supply system fluidly connected to the life-support cell, and an exhaust system fluidly connected to the life-support cell. The life-support cell is structured to contain a laboratory animal infected with microorganism of a type that requires bio-safety level 3 (BSL-3) isolation, is transparent to at least one form of radiation to permit observation of the laboratory animal while in use, and the biological safety system contains the microorganism that infect the laboratory animal within the life-support cell while permitting the observations of the laboratory animal from a bio-safety level 2 (BSL-2) environment without the microorganism escaping from the life-support cell.