Porter in The Volatile Nitrates discusses that inhaling amyl nitrate and other alkyl nitrates was a part of popular club culture in the 1970s. This means that the smooth muscles tissue relaxes in the vessel walls and this result in wide blood vessels. Poppers or alkyl nitrate are recreational drug which have vasodilatory effect on the human body. One of the more popular brands are 'Jungle Juice Poppers' and there are many places online where you can buy Jungle Juice. Although amyl nitrate is not available for purchase there are a number of other 'poppers' types available online which may be either illegal or legal to buy depending on which country you live in. However, the Federal Government now lists amyl nitrate as a controlled substance and is no longer available in that form or can you buy poppers in the USA for human consumption. Those brands were the best and most strong poppers and amyl nitrate was considered the best poppers to buy.
In the early 1970's poppers (or 'popers') were made from amyl nitrate. us does not advise that you use any of our products in this fashion. This article is a brief history of poppers and Rush - Poppers.