00834nam a2200205 a 4500003000200000005001700002008004100019050002700060100003100087245011400118260009200232300004000324504004100364650002400405650002400429650003700453650004200490650004800532650004800580020250609101117.0030603s19uu    xx            00    eng d  aPGS TP 993b.T789 2000  aTremblay, Crystal Gayle M.  aA comparative study on the pH level of local and imported brand of hair shampoo /cCrystal Gayle M. Tremblay.  aLas Piñas City, Philippines :  bSouthville International School and Colleges,c2000.  a26 pages :billustrations ;c28 cm.  aIncludes bibliographical references.  aShampoosvAnalysis.  aCosmeticsvTesting.  aConsumer goodsvQuality control.  aHydrogen-ion concentrationvTesting.   aProductsvComparative testingzPhilippines.  aImported productsvEvaluationzPhilippines.