1. Healthy Hair: What Is it?
Rodney D. Sinclair 
Journal of Investigative Dermatology Symposium Proceedings 
Volume 12, Issue 2, Pages 2-5 (December 2007)
DOI: /sj.jidsymp
Copyright © 2007 The Society for Investigative Dermatology, Inc Terms and Conditions

2. Figure 1
The f-layer – 18-methyl eicosanoic acid is intimately bound to the exo-cuticle and intensely hydrophobic.
Journal of Investigative Dermatology Symposium Proceedings  , 2-5DOI: ( /sj.jidsymp )
Copyright © 2007 The Society for Investigative Dermatology, Inc Terms and Conditions

3. Figure 2 Healthy hair as evinced by shine and body.
Journal of Investigative Dermatology Symposium Proceedings  , 2-5DOI: ( /sj.jidsymp )
Copyright © 2007 The Society for Investigative Dermatology, Inc Terms and Conditions

4. Figure 3
A significant degree of weathering to the hair shaft. Most weathering is self-inflicted.
Journal of Investigative Dermatology Symposium Proceedings  , 2-5DOI: ( /sj.jidsymp )
Copyright © 2007 The Society for Investigative Dermatology, Inc Terms and Conditions

5. Figure 4
Cosmetic products restore the optical and physical properties of hair after weathering. 960 × 1458mm (72 × 72DPI).
Journal of Investigative Dermatology Symposium Proceedings  , 2-5DOI: ( /sj.jidsymp )
Copyright © 2007 The Society for Investigative Dermatology, Inc Terms and Conditions