i picked up a small bottle of this today to add to some iced lime boosters. i enjoy the scent in combination to the lime shave den soap i used this morning. the boosters did not moisturize as well as the harris pink i normally use but i was looking for something a bit cheaper. anyhow, once opened, does the vegetable glycerin need to be refrigerated? the is nothing noted on the bottle and the folks at whole foods seemed to be at a loss as well. s~s