Oh, you can certainly make do with proper use. But you can't expect them to function as well as a better quality product.

Take this skin cream, for example--[he'll select a bottle, turning it over to the back]--look at all the excess of ingredients in here! Now, normally you'd think you'd want more, but by putting them all in one cream rather than spreading them out over different mediums, you might be getting less bottles to remember, but you're also getting less of each ingredient that your skin needs, so you'd have to use more, which doesn't even always work because there's only so much your skin can absorb--

[he can go on forever about this, and absolutely will if not stopped]