JOURNAL OF COSMETIC SCIENCE 226 PROCEDURE (1) Into a clean and sanitized stainless steel container equipped with propeller mixer, add water in Phase B (2) Add SLES and betaine, heat up to 70° to 75°C, slowly add cocamide MEA and EGDS, mix slowly while minimizing air incorporation. Mix until uniform, then cool down to room temperature. (3) In another clean and sanitized stainless steel tank equipped with propeller mixer, add water and the rest of ingredients of phase A one by one while minimizing air incorpo- ration. Mix until uniform. (4) Add phase B slowly into Phase A. Mix until uniform (5) Premix Silplex J2-S and Cosmosurf CE-100 until uniform, then add into Phase A+B, mix well. Add the rest of ingredients in Phase C one by one into Phase A+B until homogeneous while minimizing air incorporation. (6) Add ingredients in Phase D one by one. Adjust pH by using citric acid to pH = 5.5 ~ 6.5, and adjust viscosity to 6,000 cps ~ 12,000 cps by adding q.s. NaCl and Crothix. Add fragrance if necessary. PROPERTIES Viscosity (cps) 12,000 pH 5.70 Appearance Opaque white cream FOAM METHOD All products were evaluated with the same procedure. A 1000-ml cylinder with 10-ml increments was used. All samples and distilled water was prepared at 25°C. 1.00 gram Figure 4. Silplex J2S and Silquat J208.

2010 TRI/PRINCETON CONFERENCE 227 Table XVI Shampoo Formulation: Two-in-One Shampoo (Coacervate) FH183D Description (Supplier) INCI Name Weight % A D.I. water Aqua 22.000 Carbopol Aqua SF-1 polymer (1%) Acrylates copolymer 2.500 TEA 99% Triethanolamine 0.200 Na2EDTA Disodium EDTA 0.100 Sodium laureth sulfate Sodium laureth-2 sulfate 27.500 Cocamidopropyl betaine Cocamidopropyl betaine 6.000 B D.I. water Aqua 18.000 Sodium laureth sulfate Sodium laureth-2 sulfate 5.500 Cocamidopropyl betaine Cocamidopropyl betaine 4.000 Ninol COMF Cocamide MEA 1.200 EGDS Ethylene glycol distearate 3.000 C Silplex J2-S (Siltech LLC) Silicone quaternium-20 2.000 Cosmosurf CE-100 (SurfaTech Corporation) Octyldodecyl citrate crosspolymer Wheat protein Wheat protein 0.500 Hemp seed oil Cannabis sativa (Hemp) Seed oil 1.000 Nipaguard DMDMH DMDM hydantoin 0.500 D Decyl glucoside Decyl glucoside 3.000 Amphosol 2C Disodium cocoamphodiacetate 3.000 Citric acid (40% aq) Citric acid q.s. Sodium chloride (if needed) Sodium chloride q.s. Crothix (Croda) (if needed) PEG-150 pentaerythrityl tetrastearate q.s. Fruity Herbal Fragrance q.s. Total 100.000 of test material was used and 100 ml of distilled water was added to dissolve the test material in a 250-ml beaker. After the test material was totally dissolved, the solution was transferred into the cylinder. An air pump was sited on the bottom of the cylinder to generate the bubbles. After recording the foam height within 20 seconds for each test material, each material was evaluated three times and their averages were docu- mented. The scale for foam height of 1000 ml is outstanding and 100 ml is very poor. The type of foam was also noted as tight or loose. Bubbles were generated by an elec- tronic air pump. Sample [Bubble for 20 sec] Initial reading [average, ml] Two minute reading [average, ml] Five minute reading [average, ml] FH183D 700 690 670 Foam was tight and uniform.