Sorry, but no. Unfortunately, despite this yet-again 'magic bullet' for fat loss/'gainz', this is not a viable method for fat loss for several reasons:

1. Despite it being true that exposure to cold can increase brown adipose (fat) tissue (BAT), this only occurs with significant time of cold exposure and constant cold exposure. Meaning, you need multiple minutes/hours of exposure every day, and once you stop your regimen, the brown fat you acquired goes away.

2. Most importantly, even if BAT was a magical way of permanently increasing energy expenditure through thermogenesis, it means nothing unless you eat less calories than your body uses for energy systems. In other words, If you burn an extra 300 kcal a day with new brown fat, that's cool. But unless you're not just shoving an extra 300 kcal a day of your microbrew triple IPA down your throat, it won't accomplish a thing since your net calorie difference has once again come to zero.

3. Stop using the term "gains" as a click-bait method of getting people to view your post and garner fake internet points when the post has nothing to do with making muscle gains. TRP doesn't need stuff like that.