No collateral business loans with low interest and fast approval

As many of you know, I do a micro business on the side. However, what's preventing me from expanding my little business is the lack of capital. I'm currently studying the business loans available online. If you have a good credit history, you can actually avail of a collateral free business loan! They promise no application fees and no hidden charges, and interest rates are touted to be very low. Approval is fast, taking only 24-48 hours. This looks very promising to me.