POLYAMIDE RESINS FOR HAIR 329 Figure 7. Laboratory shaker used to evaluate style retention edge of another's comments. Observers did not know whether the same lotion had been used as a control test on both sides and were asked to comment on the styling knowing only that there might be a differ- ence. If a difference was reported, reasons for the preference were re- corded. Agreement by two of the observers was recorded as a prefer- ence. Usually the three were in agreement, though not always for the same reason. Preference results are shown in Table II and reasons given are summarized in Table III. Table II Comparison of Styling Lotions by Use of Two-Side Stylings at Wilmington Salons No. of Test Side Preferred Subjects Polyamide lotion 33 Comparator lotion 5 Both the same 4 -- Total 42

330 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Table III Reasons Expressed for Preferring the Polyamide Lotion Reason Frequency • Better hold 24 Better body 15 Improved sheen or luster 11 Easy to comb b 9 Easy to tease b 7 Total possible: 33 for any single advantage. These comments made by the subject others by subject or observer. Many salon managers and beauticians also noted differences be- tween coded lotion samples. After this study, identified samples were distributed for trial use at eight salons. Representative comments ob- tained were: "The hair is springy after drying." "It is easy to style." "The hair is manageable." "Wet• hair combs well--can apply to tangled hair." "Seems to condition hair--does it contain a conditioner?" After the two-side styling study was completed, participants asked for additional samples to be used at home and by beauticians. These interests and the natural interest in a new pro.duct led to inquiries from 60 girls four samples. Although distribution of samples was not planned initially in the study, the extensive use of the new product made it possible to obtain helpful information on performance. While 90% of the answers showed that the user preferred the lotion over that used previously, this finding alone is not as significant as that ot5 the two- side styling results. The group of 60 was not selected randomly each participant receiving a questionnaire was using the lotion as a result o15 a pre15erence that had led to requesting samples originally. Representa- tive comments are, however, useful. Those most commonly made were: "Gives improved body and improved hold." "Easy to comb and easy to recomb o•: touch-up." Improved luster, noted in the controlled observations ot5 the two-side styling study, was mentioned in only a few of the questionnaire replies. The questionnaire replies were based on observations made when both sides were styled with the same lotion. Side-by-side comparisons could