Review on 🎸 Rock-Tips Liquid Callus Formula for Guitar, Bass, and Stringed Instruments - 4.0 mL by Jamie Smith

I've been playing guitar for about 52 years. I'm semi-pro. I've always played electric guitar because acoustic is too painful for my fingers. I recently tried and purchased a Fender ACOUSTASONIC Jazzmaster. This is the easiest acoustic I've ever played. I was recently booked for a 3 hour evening show and then got a last minute call from a place I perform often that has two 2 hour afternoon shows on the same day. I agreed, but I was afraid to play acoustics 7 hours a day. I usually feel some discomfort in my fingertips after 2.5 hours. I bought it from Revain and received it the next day as a Prime member, 1 day before the show started. I didn't know what to expect. I applied 2 layers a few minutes before starting. I've played both 2 hour shows with no complaints. I put on another coat just before I started my three-hour evening performance. There is no more pain. That's great. 7 hours playing time, no pain. I still felt every string while playing. It's soft and flexible to play with, unlike crazy glue. Absolutely amazing product.