@Sooby,
Sue, both the mild dish soap and the Safer's were first used indoors. When I first used Safer's indoors and noticed its effects I switched to dish soap. I have never again considered using Safer's - I will/do use dish soap solutions. I don't use any sort of formula for the concentration - just a squirt of dish soap in a pump spray container of water. Aphids visibly respond to the spray; I have not checked to see if they will respond to plain water sprays.
