Stronger than any pepper: Nigerian plant has a toxin that registers 16 billion units on the heat scale.

Written by Fabio Lucas Carvalho

Published on 14/04/2026 at 15:11

Updated on 02/05/2026 at 16:26

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The resin extracted from this African succulent contains resiniferatoxin, a substance so extreme that it is being tested by medicine as a revolutionary alternative for the treatment of chronic pain.

The Euphorbia poissonii, a plant native to northern Nigeria, holds the title of the spiciest substance on the planet due to its active component, resiniferatoxin (RTX).

This toxin is so potent that the hottest pepper in the world seems mild in comparison to its sensory effects. The plant does not belong to the pepper family, but rather to the succulent genus, and its dangerousness requires extremely cautious handling in laboratory or natural environments.

The chemical potency of Euphorbia poissonii resin

The Scoville scale, used to measure the heat of peppers, demonstrates the abysmal disparity between Euphorbia poissonii and other known spicy agents. While the Carolina Reaper pepper reaches about 2.2 million heat units, pure resiniferatoxin registers the impressive mark of 16 billion units.

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Medicinal applications and the potential of resiniferatoxin

Despite the risks, science has been exploring the properties of Euphorbia poissonii for the development of new medical treatments. Resiniferatoxin works by binding to specific pain receptors in sensory neurons, causing an overload that eventually desensitizes them.

This unique mechanism offers a promising alternative for managing chronic pain in patients with terminal conditions or severe diseases.

Researchers are conducting studies to transform the venom of Euphorbia poissonii into a potent and long-lasting painkiller. Unlike opioids, RTX does not affect other sensory functions such as touch or motor coordination, focusing exclusively on pain signals. If clinical trials continue to progress, the substance could revolutionize the way medicine treats intense physical suffering without the side effects of traditional medications.

Safety and precautions in handling the plant

The cultivation or study of Euphorbia poissonii requires strict safety protocols, including the use of gloves, masks, and full eye protection. Experts warn that inhaling particles or accidental skin contact can provoke an immediate and painful inflammatory reaction. The plant serves as a reminder of the chemical power present in nature, capable of being both a lethal threat and a healing tool.

The preservation of Euphorbia poissonii in its natural habitat is important to ensure that future research can be conducted. Global interest in resiniferatoxin has increased the need to monitor the trade and access to this Nigerian species.

The balance between the inherent danger and the medicinal benefit makes this plant one of the most fascinating topics in contemporary botany and pharmacology.

With information from Oddity Central

Stronger than any pepper: Nigerian plant has a toxin that registers 16 billion units on the heat scale.

The resin extracted from this African succulent contains resiniferatoxin, a substance so extreme that it is being tested by medicine as a revolutionary alternative for the treatment of chronic pain.

The chemical potency of Euphorbia poissonii resin

Medicinal applications and the potential of resiniferatoxin

Safety and precautions in handling the plant

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Stronger than any pepper: Nigerian plant has a toxin that registers 16 billion units on the heat scale.

The resin extracted from this African succulent contains resiniferatoxin, a substance so extreme that it is being tested by medicine as a revolutionary alternative for the treatment of chronic pain.

The chemical potency of Euphorbia poissonii resin

Medicinal applications and the potential of resiniferatoxin

Safety and precautions in handling the plant

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Australia prepares to dredge 96.5 million m³ in Moreton Bay to deepen, widen, and realign channels of the Port of Brisbane, in a project of up to 25 years designed to accommodate larger ships and enhance maritime safety and regional port efficiency.

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While the world discusses geopolitics, China is quietly closing a deal with its Kazakh neighbor to secure grain supplies during any global food crisis, with more than 3,600 Kazakh companies already able to export directly to the Chinese market.

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