So the “low and slow” really only describes starting with a low percent of retinoid (or a lower strength) and slowly increasing in frequency of use and then increasing the strength and/or concentration. I’ve been told by dermatologists that you need to use your retinoid at least every 3rd day to see the benefits, which does make sense to me. Some of what you’re doing is altering the cell’s function, and it will revert. Every other week will not give you the benefits. The effects of a prescription retinoid will be more, but you’ll also see more side effects such as redness and irritation. It really depends on what your own skin can handle, I know a bunch of derms who can’t handle prescription strength and use over the counter themselves. You only need 1 retinoid, no need to use a prescription and over the counter! I hope that helps.