AXILLARY ODOR EVALUATION 289 L^B 3 _ _ ODOR SCORE UNSCENTED FORMULATI ONS PLACEBO o 3 6 24 0 ACTIVE 3 8 TIME (HOURS) AFTER APPLICATION 24 Figure 3. Axillary odor scores with unscenteo lotions. Test tube method (BM) vs direct sniffing (Lab 3). In Figure 3, it is obvious that Laboratory #3 also had difficulty distinguishing between active and placebo. This testing laboratory was unique in that their judges rated odor at 24 hours at a level identical with pretreatment levels. Figure #4 compares the data obtained in the three contract laboratories. Note that L4B 2 LAB 3 ODOR SCORE UNSCENTED FORMULATIONS o 3 6 24 o 3 6 TIME (HOURS),AFTER APPLICATION 24 Figure 4. Axillary odor scores with unscented lotions. Three contract laboratories compared.

290 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Table III Odor Scores With Scented Antiperspirant Emulsions (Days 1 and 2 Combined Judges Combined) B-M Lab 1 Lab 2 Lab 3 Hours A B A B A B A B 0 7.33 7.28 6.32 6.08 6.78 6.93 7.07 7.07 3 5.02 c 2.12 c 1.77 b 1.17 b 2.12 1.64 3.84 c 2.14 c 6 5.01 c 2.27 c 2.98 b 2.19 b 2.85 1.98 5.82 c 3.41 c 24 5.77 c 3.31 • 4.02 3.22 4.70 a 3.96 a 6.99 6.99 A = Placebo. B = Active. • No significant differences between products on Day 1 active product significantly more effective than placebo on Day 2. b Active product significantly better than placebo significant differences in efficacy among judges, how- ever. c Active product significantly better than placebo significant differences in efficacy among judges and/or between days. there is not consistent agreement throughout all time periods for any pair of labora- tories. SCENTED ANTIPERSPIRANT EMULSIONS Table III compares the responses generated by the tube method at BM with those obtained by direct sniffing. The Table and Figures 5 to 8 indicated that all laboratories found some odor reduction with the placebo. This reduction was much more pro- nounced at all times with direct sniffing in two of the contract laboratories. LAB I ODOR SCORE 8 SCENTED FORMULATIONS PLACEBO 0 3 õ 24 ACTIVE 0 3 6 24 TIME (HOURS) AFTER TREATMENT Figure 5. Axillary odor scores with scented lotions. Test tube method (BM) vs direct sniffing (Lab 1).