Title: Innovative Scanning Electron Microscopic Techniques for Evaluating Hair Care Products
Abstract: Synopsis-The utilization of microscopy in studying human hair is briefly reviewed. Reasons for selecting the SCANNING ELECTRON MICROSCOPE (SEM) over the transmission electron microscope and the optical microscope are discussed. The use of the SEM in evaluating HAIR CARE PRODUCTS is then described. A new technique employing a ROTATING HAIR STAGE, specially designed and fabricated for this study, is presented. The procedure devised allows one to view hair in the SEM while still attached to the panelist's head. The technique is nondestructible to the hair, permitting the study of sequential treatments on the same hair. For example, the evaluation of a shampoo on the hair after 0, 5, 10, and 20 treatments is now possible. The hair is removable from the SEM as many times as required for treatment without the necessity of cutting the hair from the scalp. In addition, the apparatus allows for complete axial rotation of the hair in the SEM. The functionality of two hair care products (a shampoo and a conditioner) is demonstrated using this technique. MICROGRAPHS of hair damages before and after treatment are categorized and numerically rated. The difference ratio was devised as an index to measure the degree of improvement of damaged sites.
Publication Year: 1973
Publication Date: 1973-01-01
Language: en
Type: article
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Cited By Count: 4
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