Here I wrote my own observations Expectations vs. Reality
I can add that my dad not using any fields and yet Camphor Salve speeded up his finger regeneration so fast that he was shocked.
My mum used Sacred Forest when she was going through a rough time, and it lifted her up very fast. She has been using fields for years now.
Depending on how big you are. How many days does your normal shower gel last? It would be the same. Our shower gels are slightly more efficient than the ones I used before.
You can experience uplift really fast. I would recommend to spread gel all over your body, close your eyes and say "I accept the energy of this shower gel and allow my body, mind and soul to adapt to this. " You can visualize that the energy sinks into your body.