The aim of this study is to improve Pang-Rum (PR) hardness by adding natural binders. PR is one of Thai tradition aroma products. In the past, it was used for aesthetic propose on face and body with good odor. Nowadays, PR is not popular and going to be disappeared. Five natural materials, i.e. agar, rice flour, glutinous flour, corn starch, and tapioca starch were selected to use as binders. Binders were dissolved with boiled water into concentration 5% and 10% w/w except agar that was prepared 0.5% and 1% w/w. PR with and without binder were formulated. Physical properties, i.e. weight, shape, color, and hardness were evaluated. PR with 10% of corn starch solution had suitable hardness (14.2±0.9 kg) and the best appearance. In the future, it would be planned to study about odor and physical stability for decorated product development.
 L. V. Allen, and H. C. Ansel, Ansel’s Pharmaceutical Dosage Forms and Drug Delivery Systems. Philadelphia, PA: Lippincott Williams & Wilkins, 2014, pp. 271, 434.
 C. Pichiansunthorn, M. Chaowalit, and W. Jeerawong, Medical Recipes of the King Narai. Bangkok: Amarin Printing and Publishing, 2001, pp. 140-144
 Department of Medical Sciences, Ministry of Public Health, Thai Herbal Pharmacopoeia vol II. Bangkok: Prachachon, 2000, pp. 46-52.
 R. C. Rowe, P. J. Sheskey, and M. E. Quinn. Handbook of Pharmaceutical Excipients. London: Pharmaceutical Press, 2009, pp 13, 200.
 L. Pachuau, R. S. Dutta, P. K. Roy, P. Kalita, and H. Lalhlenmawia, “Physicochemical and disintegrant properties of glutinous rice starch of Mizoram, India ,” International Journal of Biological Macromolecules., to be published.
 N. E. Klinjumpa, Thai Flavours and Fragrances for Thai wisdom. Bangkok: Se-education, 2002, pp. 76-81.