There were some Korean magazine with freebies at Kinokuniya Ngee Ann City. Korean Magazines tend to be rather expensive in my opinion.
Singles Korean Magazine (S$32.10) – FREE Sisley 4 piece sachets samples
Ceci Korean Magazine - S$40.66 – FREE 3 piece Clinique gift Cleanser 30ml, Toner 60ml, Moisturizer 30ml.
Vogue Girl Korea S$29.96 – Free Shu Uemura Artist Book