Transparent formulations of a liposoluble sunscreen agent in an aqueous medium.
Synopsis Transparent formulations of a liposoluble sunscreen in an aqueous medium were studied, taking into account the different chemicals of a selected system situated in the vertices of a regular tetrahedron: sunscreen agent, co-solvent, (surfactants +/- mineral oil) mixture (in the tetrahedron base) and water as the fourth component. Several compositions were selected at optimized component ratios after which water was added progressively. Clear gel and liquid compositions were obtained yielding a sunscreen agent that it suitable for conventional use. The physico-chemical properties of some compositions were assessed in terms of water/sunscreen agent content.
Comelles
F
F
Instituto de Tecnología Química y Textil (C.S.I.C.), C. Jorge Girona 18-26, 08034 Barcelona, Spain.
Parra
J L
JL
Ferrando
C
C
Caelles
J
J
Sánchez
J
J