I bought a copy of Moma Bear on eBay for $10. I did notice some positive change in my feet after applying. The active ingredient is just Magnesium Chloride. This is an inexpensive, low-toxicity chemical. I am thinking of buying this and add 5 to 10% to any common hand lotion to make a large bottle. Another possible magnesium salt is Epsom salts, magnesium sulfate. This is also inexpensive and is sold in every pharmacy. I might try that also. I too noticed that the Moma Bear cream is highly whipped so that there is a lot of air in it and less of the cream so less medicine.