Mine are from acuped....they are from japan and have all natural ingredients..and not a whole bunch....My naturopath prescribed them...she said they were excellent....the second night...I put them in a different spot on my foot...and the results were different..they stick on really tightly and evenly...so I hope they are working...mine get dark and very sludge like....do yours get sludge like???...they cost $30 for 12 Canadian