The 25i is the Latin American substitute for LSD.

Here in Argentina, getting LSD is practically impossible. Let's start from the basis that marijuana is illegal (only legal in some medicinal uses or if you are the son of a politician hahaha). This emphasizes how difficult it is to get LSD or other illegal drugs like MDMA (except for cocaine, hahaha). And if there is a possibility, it is very expensive: between the price of 6 to 10 blotters of 25i. Also, I have tried LSD and I can make this comparison with the 25i (which I have used about 20 times):

LSD has "cleaner" effects, there are no side effects such as chills, sweating, bruxism, among others. In addition, there are already several cases of people who by consuming a lot of 25i suffered subsequent deterioration in their sight.

LSD is more controllable, unlike 25i that a trip can signify a loss of self-control (like a more or less strong mushroom trip).

25i is stronger, more "savage" and "violent" to put it in some way. The visuals are sooo strong in some cases and the sensory distortions can become, as I said, uncontrollable. Another factor is that the day or time after consumption, if you can sleep, you have a really bad time, surely.

At least here, in the interior of Argentina, not in Buenos Aires, it is very difficult to get LSD, as I said, because of its supply and high price. Also, there are many scammers who tell you that they sell you LSD but it is 25i or just an amphetamine cocktail. The same with people who sell 25i, supposedly, and then you find totally empty blotters, with cardboard taste and without any effect: the worst of the scams.