ERD50
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
I am just amazed that most of you put this stuff on your skin every day and leave it to be absorbed.
This whole thread has me wondering now. I just automatically apply it after showering, and don't think about it.
But I keep it cool in the house in winter, the air is dry, and if I'm going to work up a sweat, I'll do it before I shower.
I guess the only way to find out is try it w/o and see. In summer, with heat and humidity I'd want to use it.
But to the OP, I did look at the Arm&Hammer brand DW buys (I think it's a pretty cheap brand, and it seems to work fine). It's got the same 19% of that active ingredient. Hard to imaging that going from 19% to 20% would be magical, that's just 5.26% more active ingredient. I'd imagine there is more variation in application technique than that. An extra pass of the 'cheap' stuff should do the same?
A double-blind randomized test is in order, and no, I don;t want to be one of the evaluators!
-ERD50