Cover of Marvel Science Stories for April-May 1939. Shows an illustration by Norman Saunders, a popular sci-fi artist of the time, meant to show a "Beauty Parlor of the Future". Eando Binder provided a column describing it, in which he went into details about electricity recharging the cells of the body, and modifying the pituitary gland - not exactly fitting with modern science, but as he points out at the end, biology wasn't so well developed in those days.
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