In this handbook the opportunity has been taken firstly to present the waterbalance in the horny layer and the sweat secretion process with particular emphasis on their relationship to the pharmacodynamical aspects of the micro­ circulation and permeability of the skin. F. A. 1. THIELE was unable to witness the printing of his life-work concerning the water balance of skin, which he had compiled at the university in Nijmegen with J. W. H. MALI and G. 1. DE JONGH and D. A. REAY from Great Britain. Their contribution concentrates on evaluating the cooling function of the sweat glands with their heat-pipe system and on the physico-chemical effects of dermatological therapy and topically applied cosmetics. A certain amount of overlapping with Volume I/4A (E. SCHWARZ) could not be avoided, and yet the presentation by THIELE and co-workers considers different aspects. The pharmacodynamics of externally applied substances involved in microcirculation are related thematically also to percutaneous resorption. Function and morphology of pharmacodynamics in microcirculation are inseparable. Therefore the structural alterations of the blood vessels in reaction to foreign agents or as an adaptation to endogenous tissue hormone release have been examined electronmicroscopically by W. G. FORSSMANN and his team, and relay a distinct picture of the microcirculation in the area of skin reactiveness. The direct pharmacological aspects of the skin and the systemic effects on blood vessels and their permeability have been listed according to the latest research material.

Several years ago a friendly looking young man walked into my office at the University Department of Dermatology in Cologne, introduced himself as a diplomate chemist, executive member of a family-owned, rather small German company manufacturing hair care products, and proposed to me straight forward to organize an international meeting on hair research. In view of the large number of new developments in the field something like this should be done after all, he said; he also promised to provide financial support. Such a meeting should be on the highest possible level, I said; and he agreed. I took the challenge and my visitor kept his promise. Three years later the First International Hair Congress was organized at the sophisticated new Congress Center in Hamburg, in which 630 participants from 36 countries were registered. After three and a half days of formal sessions, informal discussions, workshops and poster presentations our unanimous feeling was that this has been a most successful meeting. The young chemist was right. The idea was excellent. The growth and presence of hair and its distribution over the human body as a cosmetic attribute has become during the last two decades a matter of tremendous emotional significance. Hair can be rather easily formed according to one''s sence of style, representing his personal image and his social feeling. If it becomes unacceptable or out of fashion, the hair style can be easily changed; the hair regrows as a biological requisite, without any additional cost.

Several years ago a friendly looking young man walked into my office at the University Department of Dermatology in Cologne, introduced himself as a diplomate chemist, executive member of a family-owned, rather small German company manufacturing hair care products, and proposed to me straight forward to organize an international meeting on hair research. In view of the large number of new developments in the field something like this should be done after all, he said; he also promised to provide financial support. Such a meeting should be on the highest possible level, I said; and he agreed. I took the challenge and my visitor kept his promise. Three years later the First International Hair Congress was organized at the sophisticated new Congress Center in Hamburg, in which 630 participants from 36 countries were registered. After three and a half days of formal sessions, informal discussions, workshops and poster presentations our unanimous feeling was that this has been a most successful meeting. The young chemist was right. The idea was excellent. The growth and presence of hair and its distribution over the human body as a cosmetic attribute has become during the last two decades a matter of tremendous emotional significance. Hair can be rather easily formed according to one's sence of style, representing his personal image and his social feeling. If it becomes unacceptable or out of fashion, the hair style can be easily changed; the hair regrows as a biological requisite, without any additional cost.

In this handbook the opportunity has been taken firstly to present the waterbalance in the horny layer and the sweat secretion process with particular emphasis on their relationship to the pharmacodynamical aspects of the micro­ circulation and permeability of the skin. F. A. 1. THIELE was unable to witness the printing of his life-work concerning the water balance of skin, which he had compiled at the university in Nijmegen with J. W. H. MALI and G. 1. DE JONGH and D. A. REAY from Great Britain. Their contribution concentrates on evaluating the cooling function of the sweat glands with their heat-pipe system and on the physico-chemical effects of dermatological therapy and topically applied cosmetics. A certain amount of overlapping with Volume I/4A (E. SCHWARZ) could not be avoided, and yet the presentation by THIELE and co-workers considers different aspects. The pharmacodynamics of externally applied substances involved in microcirculation are related thematically also to percutaneous resorption. Function and morphology of pharmacodynamics in microcirculation are inseparable. Therefore the structural alterations of the blood vessels in reaction to foreign agents or as an adaptation to endogenous tissue hormone release have been examined electronmicroscopically by W. G. FORSSMANN and his team, and relay a distinct picture of the microcirculation in the area of skin reactiveness. The direct pharmacological aspects of the skin and the systemic effects on blood vessels and their permeability have been listed according to the latest research material.

Several years ago a friendly looking young man walked into my office at the University Department of Dermatology in Cologne, introduced himself as a diplomate chemist, executive member of a family-owned, rather small German company manufacturing hair care products, and proposed to me straight forward to organize an international meeting on hair research. In view of the large number of new developments in the field something like this should be done after all, he said; he also promised to provide financial support. Such a meeting should be on the highest possible level, I said; and he agreed. I took the challenge and my visitor kept his promise. Three years later the First International Hair Congress was organized at the sophisticated new Congress Center in Hamburg, in which 630 participants from 36 countries were registered. After three and a half days of formal sessions, informal discussions, workshops and poster presentations our unanimous feeling was that this has been a most successful meeting. The young chemist was right. The idea was excellent. The growth and presence of hair and its distribution over the human body as a cosmetic attribute has become during the last two decades a matter of tremendous emotional significance. Hair can be rather easily formed according to one''s sence of style, representing his personal image and his social feeling. If it becomes unacceptable or out of fashion, the hair style can be easily changed; the hair regrows as a biological requisite, without any additional cost.

Several years ago a friendly looking young man walked into my office at the University Department of Dermatology in Cologne, introduced himself as a diplomate chemist, executive member of a family-owned, rather small German company manufacturing hair care products, and proposed to me straight forward to organize an international meeting on hair research. In view of the large number of new developments in the field something like this should be done after all, he said; he also promised to provide financial support. Such a meeting should be on the highest possible level, I said; and he agreed. I took the challenge and my visitor kept his promise. Three years later the First International Hair Congress was organized at the sophisticated new Congress Center in Hamburg, in which 630 participants from 36 countries were registered. After three and a half days of formal sessions, informal discussions, workshops and poster presentations our unanimous feeling was that this has been a most successful meeting. The young chemist was right. The idea was excellent. The growth and presence of hair and its distribution over the human body as a cosmetic attribute has become during the last two decades a matter of tremendous emotional significance. Hair can be rather easily formed according to one's sence of style, representing his personal image and his social feeling. If it becomes unacceptable or out of fashion, the hair style can be easily changed; the hair regrows as a biological requisite, without any additional cost.