Welcome to part two of our look at the relationship between viscosity and surface tension as we review both concepts, then work through a worksheet where we combine the two concepts before we make a few products with these ideas in mind. In section one, we took a look at the concept of combining emollients...

Welcome back to our series on combining emollients! In this part – part or section six – we’ll combine the concepts of viscosity and surface tension to see how they affect the spreadability, spreading values, sensory characteristics, and other properties when it comes to using emollients in our products. In section one, we took a...

Why the picture of a lip balm at the top of this post? One, it’s full of emollients, and spreadability is really important in lip products; and two, getting that little dome at the top is about surface tension!  Welcome back to our series on combining emollients. In this part – which is part or...