title: Free-choice-profile descriptive analysis of sticks with conditioning agents.
abstract: Nine formulations to be used as stick bases were manufactured using sodium stearate, propyleneglycol, and water, adding different concentrations of the following conditioning agents: octyldodecanol, PPG-5-ceteth-20, and PPG-15-stearyl ether. Free-choice-profile methodology was used to select the most adequate concentration of the agents in order to improve sensory properties. The sensory descriptors were grouped into four categories: stick aspect, sensations during application, sensations immediately after application, and sensations five minutes after application. Formulations containing 4% and 6% octyldodecanol and 2% PPG-15-stearyl ether were considered inadequate, since they showed unwanted qualities such as exudation, a slow absorption rate, high oiliness, and residue. Formulations containing 2% octyldodecanol; 2%, 4%, and 6% PPG-5-ceteth-20; and 4% and 6% PPG-15-stearyl ether presented different characteristics regarding the four categories of descriptors evaluated, all of them being acceptable considering the properties sought.
authors.affiliation: Sección Evaluación Sensorial, Facultad de QuImica, Universidad de la República Oriental del Uruguay, Avda Gral Flores 2124, CP 11800, Montevideo, Uruguay.
authors.forename: Adriana
authors.initials: A
authors.lastname: Gámbaro
authors.forename: María Emma
authors.initials: ME
authors.lastname: Parente
authors.forename: Ana
authors.initials: A
authors.lastname: Giménez
mesh_terms: D003358:Cosmetics / Q000008:administration & dosage* / Q000138:chemical synthesis / Q000737:chemistry*; D004655:Emulsions / Q000008:administration & dosage / Q000138:chemical synthesis / Q000737:chemistry; D005079:Excipients / Q000008:administration & dosage* / Q000138:chemical synthesis / Q000737:chemistry*; D005233:Fatty Alcohols / Q000737:chemistry; D006801:Humans; D019946:Propylene Glycol / Q000737:chemistry; D011409:Propylene Glycols; D017592:Skin Care / Q000379:methods*; D013228:Stearates / Q000737:chemistry; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D003358:Cosmetics; D004655:Emulsions; D005079:Excipients; D005233:Fatty Alcohols; D011409:Propylene Glycols; D013228:Stearates; D014867:Water; C451730:polyoxypropylene 15 stearyl ether; C456972:octyl dodecanol; D019946:Propylene Glycol