ZERO Adhesion
Simply put, these are a waste of time/money.  They do not stick to the skin like the originals did; they don't even work once.  I tried cleaning the skin with alcohol (and various other things) to see if it affected the adhesion.  Nothing worked.  As others have mentioned, they appear to be old and expired.  I bought three (3) packages because I love the TENS unit by Homedics...but these replacement gels are not worth anything.
Rating: 1 stars