A very basic protocol is 125-250mcgs of BPC 1-2x per day IM near the injury or specific area you want to target, but if injured, not directly in the injured tissue, rather near it.
TB500 is often run 2-5mgs per week in total. Some guys do 1 mega shot all at once. SubQ or IM.
Likewise what I have seen work well is many clients of mine might run say 250mcgs of BPC157 1x per day and also at the same time run 500-750mcgs of the TB500 and they will either go IM with the combo or SubQ and it still works very well.
For me I truly feel like the IM route works slightly better, but I do know in many studies that many peptides absorb just as well SubQ. So that will be a personal choice how you decide to run this.