A comparative study on the pH level of local and imported brand of hair shampoo - Tremblay, Crystal Gayle M. (Las Piñas City, Philippines : Southville International School and Colleges, 2000)
Includes bibliographical references.
Keywords: Shampoos -- Analysis; Cosmetics -- Testing; Consumer goods -- Quality control; Hydrogen-ion concentration -- Testing; Products -- Comparative testing -- Philippines; Imported products -- Evaluation -- Philippines