Certain psychoactive substances deemed sufficiently low risk, such as caffeine, are subject to no licensing controls. However, their sale remains regulated – only, in this case, the regulation focuses on ingredients, quality-checking, standard product descriptions and labelling. Where appropriate, food and beverage legislation (dealing with packaging, sell by dates, ingredients etc.) is used to ensure consumers know what they are buying, and are not put at risk. These substances are effectively freely available, although they may in some cases be subject to certain localised restrictions or voluntary codes.
Although coca sales are prohibited under the United Nations conventions, mild coca products (such as coca tea) are legal in a number of South America countries including Colombia, Peru, Bolivia and Ecuador. Since this is a very mild stimulant – easily comparable to coffee – it is reasonable to propose that coca tea, and similar products, could be sold without a licence in the post-Prohibition context.