Never tried Bepanthen. I've been using the same method for more than 10 years. These tattoo specific creams and potents are a scam. I don't want to put anything more ingredients on my skin than I have too. Besides the cost, as I said earlier, the more the ingredients, the more chance of a reaction to one or more of them.
I tried bepanthen back in the day. It didn't really do anything for me. If you wanna put something on your tattoos (you really don't HAVE to), use cocoa butter. I use Kiehl's Creme de Corps Whipped Body Butter on it tattoos after they heal because that's the body lotion I prefer.