DEODORANT EFFICACY OF TCC 83 So•p A So•p B Figure 4. Comparison of TEE transfer rates using normal (i) and "sandy" (B) soap containing 1.3% powdered TCC (single application, 2 minutes, running tap water of 37øC). of transferred TCC (Figure 7). This could mean that either the skin surface lipids serve as a depot for TCC or that they promote the liberation of TCC from the micelies. This may be in accordance with the promoting action of superfarting agents.

84 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 1.0 0.8 0. 6 molubi 1 izmd TCC 5 •oy• o• opplioot•o •.• •. 1• •. •fi •. 5• 1. • • TCC •oap C D E F, A Figure 5a. Comparison of TCC transfer rates using soap A (1.3% powdered TCC) and soaps C-F con- taining rising amounts of solubilized TCC after 3 and 5 days of regular use. Samples were taken after washing for 2 minutes with running tap water of 30øC. 0.13 0.26 0.5 1.3 • TCC eoop C D E F. ^ Figure 5b. Comparison of casual levels of TCC using soap A (1.3% powdered TCC) and soaps C-F containing rising amounts of solubilized TCC after 3 and 5 days of regular use. Samples were taken approximately 12 hours after last preceeding use. Another weak interdependence links skin surface roughness (Rtm) with the amount of transferred TCC (Figure 8). A possible explanation could be that increasing Rtm values are synonymous with rising surface areas: Larger surfaces may cause greater adsorption.