When do I start to feel the effects of Rejuran?

I am considering getting the Rejuran procedure, but I am curious because I heard that the effects do not appear immediately.

I would like to know if the skin looks better immediately after the procedure, or if it takes about 2 to 4 weeks to notice changes in texture or elasticity. I am also curious whether some people feel a difference after just one session, or if it takes about 3 sessions to feel a definite effect.

For those who have actually received Rejuran, please share your experiences regarding when you started noticing changes in your skin and what changes you were most satisfied with.