Biophysic evaluation of polysaccharide gel from durian's fruit hulls for skin moisturizer.

Durian or Dutio zibethinus Murr. (Bombacaceae) is a tropical fruit native to Southeast Asia particularly cultivated in Thailand as an economic plant. Once it is consumed, the fruit hulls are discarded as waste products. Polysaccharide gel (PG) from durian's fruit hulls is obviously efficient for use in the preparations of food and pharmaceutical products. This research focused on biophysical assessment of PG durian's fruit hulls for cosmetic formulation. The efficacy of facial skin capacitance and firmness increment of PG formulation were evaluated. Its application showed significant effect on skin capacitance after 28 and 56 days (P = 0.024 and P = 0.003) and significantly increased skin firmness after 56 days of treatment (P = 0.017) with non-allergic effect as there were no positive patch tests.