Personally I prefer the sheets! I got an 20x30cm sheet basically A4 size!
I got it off ebay for £25 and it usually retails at £100 for that size!
Sheets u just cut the size of ur scars, then wear for 12 hra take off wash and let dry, put another two on for twelve ours then use fiest pair again!!
Stickiness lasts months so hardly use any!! Xx