Ive been using Shebang for my Braun Series 7 for over 8 years and it works great and saves me a lot of money. First I rinse out the old cartridge several times with warm water, no soap. I get the water out the best I can then I let it dry over night. Then I refill it with the Shebang and 70% alcohol mixture.
After every shave, I wash my shaver blades with warm water and clear liquid soap, the I sling the water out very well. Then I brush the shaver where the blade cartridge clips on. Then I put the shaver back together and put it in the cleaning unit and run it on the normal cycle every time I shave.
It helps my cleaner last much longer because the head is pretty clean before I put it in the cleaning station. The alcohol and essential oils makes sure my blades oxidize as slowly as possible. (Posted on 9/4/2018)

I was surprised to receive such a small package in the mail.You must blend the contents of this small package with a bottle of alcohol then pour the mixture back into the old used container beneath the shaver base.This stuff is so over priced! Eight dollars is not a fair price.No, I won't be making this purchase again. And neither should you. (Posted on 7/5/2017)

They seem to work well. I wouldn't mind a bit more concentrate per pack.. at 500ML alcohol per pack it seems a bit dilute. (Posted on 3/3/2016)