All contain caffeine, guarana or a combination of both.
The new carbonated beverage will not contain caffeine.
Both cola and coffee contain caffeine, which can raise blood pressure.
Mr. Alcalay said some of his competitors' products also contain caffeine and another stimulant, taurine, but his does not.
The seeds contain caffeine, and are widely used as a stimulant.
Once informed that Red Bull does contain caffeine, as much as a cup of coffee, he replied: "Does it?
These pills contain caffeine, amino acids and herb extracts that are supposed to improve memory performance, and can be bought in branded bottles online.
The placebo drink did not contain caffeine or other stimulants such as taurine, guarana and ginseng, but had a similar taste, texture and colour to the energy drink.
Many products that claim to reduce puffiness contain caffeine, which is effective at constricting vessels, resulting in decreasing the fluid in under-eye tissues, she said.
"It's innovative and smart for companies to capitalize on that by creating more products that you'd use every day anyway, like soap, that just happen to also contain caffeine".
Snuff products or herbal powders, claiming to contain caffeine and a range of other plant-based ingredients, are also being sold as a legal alternatives to cocaine and amphetamines.
