Depending on the ingredients used, the method and the temps used, it can take some time before the lotion will thicken. For a small recipe or a small amount of ingredients you need an accurate scale like a jewelers scale. They are available in places like amazon or ebay. Using too much preservative can be irritating to the skin. The color of Optiphen ND can be from clear to light yellow. It has a light smell. It's normally used at 0.2% - 1.2%. You can see why it's important to weigh everything correctly.
_________________ Irena Closed minds are like faulty parachutes; they refuse to open.
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