The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil's acidity.
橄榄油中游离油酸的比例是对橄榄油酸度的精确测量。
2
If you need moisturizing, choose an oil-free moisturizer that contains humectants such as glycerin, Na-PCA and hyaluronic acid, etcetera (see ingredients table in the feature article of cosmetics).
如果你需要保湿，可以选择含有甘油，羧基酸，透明质酸等湿润剂的无油产品。
3
The percentage of free fatty acid ( FFA ) in cottonseed oil deodorizer distillate ( CODD ) is 40 % ~80 %.