Yes, it does, and this part of the reason why Kinotakara is the best foot pad product on the market.
Other pad companies, MLM or not... play this up, mainly because their products can't match the effectiveness of Kinotakara. So they try to tear down the glycol, because it is the only hope of getting people to try their product.
Then it backfires... the people try other products and come back to Kinotakara and they find the difference in results.
PS... a king of the hill product will always get attacked.