Shampoos and their aesthetic effects.
Synopsis We investigated whether the aesthetic appearance of the hair after shampooing was more closely related to certain specific effects than to others. Sensorial assessments were carried out on subjects tested on 'split heads'according to the Profile Method and on subjects tested on the whole head by means of three consumer tests. In the split head procedure, forty subjects had the hair washed with two different shampoos on the right and left sides; fifty-six diverse shampoos were used. The ratings, statistically analysed, showed close correlations of the overall aesthetic assessment with 'spring back'(P < 0.001), 'volume'(P < 0.001) and 'bounce'(P < 0.01). Furthermore, interdependence of several parameters (P < 0.01 or 0.001) was obvious. In the whole head procedure each group (respectively 185, 200 and 458 subjects) having applied two different shampoos, at least twice for each shampoo, were tested by means of three consumer tests. Analysis of the results makes evident that 'supple hair'and 'soft hair'were significantly correlated to the overall preferences of shampoos (P < 0.001). For the consumers their overall preference appeared to be the deciding factor in the specific preferences. Correlations of the overall preferences with perfume and/or colour (P < 0.001) were shown. For trained observers and consumers, mechanical properties of the hair seemed related to the idea of a good shampoo.
Scandel
J
J
Vick International, Division of Richardson Vicks Inc., Centre de Recherche Lab. Lachartre, 10 rue de Citaux, 75012 Paris, France.
Reinstein
J A
JA
Brudney
N
N