Is pyrethrin and permethrin the same-What are the key differences
Is Pyrethrin and Permethrin the Same? The main difference between Pyrethrin and Permethrin is that Pyrethrin is a natural pesticide with low toxicity to mammals, whereas Permethrin is synthetic. Both Pyrethrins and Permethrins are insecticides, but their effects on mammals vary. In this article, we will discuss Pyrethrin vs. Permethrin.
Is Pyrethrin and Permethrin the Same?
Pyrethrin is derived from Chrysanthemum flowers (pyrethrum). It was discovered in 1855 and has since been used as an insecticide. Pyrethrins act on insects' nervous systems by allosterically opening sodium channels. The open channels result in over-stimulation of the insect's neural and neuromuscular junctions, which causes paralysis and death. Pyrethrins are safe for mammals because they only open sodium channels in insects; mammalian sodium channels are not affected by pyrethrins or plant-derived pyrethroids.
PYRETHRIN VS PERMETHRIN
Permethrin is different from Pyrethrins because it belongs to synthetic insecticides, pyrethroids. Permethrins are more toxic than Pyrethrins because they act on sodium channels in mammals, too.
Pyrethrin Properties
Pyrethrins have low toxicity for mammals. Pyrethrin does not induce any significant signs of intoxication or changes in blood chemistry in rats. Some of the primary properties of Pyrethrin include:
1. Pyrethrins are rapidly degraded by sunlight and air.
2. Pyrethrins become toxic when mixed with chemicals such as sulfur or formaldehyde.
3. Pyrethrin is not particularly toxic to humans, though it can cause skin irritation at high doses.
4. Dogs were injected with 0.5ml of Pyrethrin and experienced no toxicity.
Permethrin Properties
Permethrins are more toxic than Pyrethrins; they act on mammalian sodium channels, making them dangerous to both humans and animals. Acute poisoning by Permethrin can cause tremors, convulsions, paralysis, and even death.
Permethrin is not broken down by sunlight or air because it is a man-made synthetic insecticide. Humans are exposed to Permethrins primarily through contact with treated clothing or the application of other products containing Permethrins. Some common brands containing Permethrin are Nix and Rid.
Permethrin Uses
Permethrin is mainly used to treat lice and scabies in humans. Permethrins are also used to kill adult fleas on dogs, cats, and horses. Humans may be exposed to Permethrins when using their products.
Other uses of Permethrin include :
1. Insect Repellent: Permethrin is widely used as an insect repellent on clothing, tents, and mosquito nets to protect against mosquitos and ticks.
2. Animal Treatment: Permethrins are also applied topically to dogs, cats, and horses to kill adult fleas.
Permethrin Toxicity
The toxicity of Permethrins varies depending on the exposure route. For example, it is more toxic if inhaled than ingestion. Skin exposure may cause low-grade irritation or redness of the skin. Eye exposure can result in conjunctivitis, eyelid swelling, and hypersensitivity reactions. Permethrins can be very toxic in humans if ingested or inhaled. If the Permethrin is applied on the clothing of a child or adult, it may irritate the skin.
Pyrethrin Uses
Pyrethrins are low in toxicity to humans and may be applied on the skin with no side effects. Some common uses of Pyrethrins include:
1. Use As Insecticide: Pyrethrins are derived from natural products such as Chrysanthemum flowers, which have extremely low toxicity to mammals.
2. Pyrethrins are primarily used as insecticides in human treatment against lice and scabies.
Permethrin Dangers
Permethrins are highly toxic to humans when inhaled or ingested. The toxicity of Permethrins increases if it is mixed with other chemicals such as sulfur or formaldehyde. It is also more toxic if applied to the skin instead of being inhaled . Symptoms of acute poisoning from Permethrins include tremors, convulsions, paralysis, and death.
Should you Choose Pyrethrin or Permethrin?
Pyrethrin is the safer option of the two. Pyrethrins are less toxic than Permethrins; it also degrades quickly in sunlight and air. If you are looking for a safer chemical to incorporate ensure that you select the Pyrethrum.
Conclusion
Is Pyrethrin and Permethrin the Same? Pyrethrin is less toxic than Permethrin. However, if the user is careful to avoid inhalation and ingestion of Pyrethrins, there should be no adverse effects. Both can be used as insecticides and insect repellents. When applied to the clothing or skin of a child or adult, both may irritate the skin. There were no reports of toxicity if dogs were injected with Pyrethrin.
2026-09-13
Trade Alert
Delivering the latest product trends and industry news straight to your inbox.
(We'll never share your email address with a third-party.)
Related News
-
BASF launches its new natural Pyrethrins insecticidal AE
-
Profit Crushed, Layoffs and Restructuring Follow: What WACKER Chemie’s 2025 Performance Reveals
-
AkzoNobel Rejects €12.5 Billion Offer from Nippon Paint and Sherwin-Williams, Sticks to Merger with Axalta
-
BASF Raises North American Nylon Products by $0.08/lb, Fourth Price Increase in Six Months
-
Middle East Conflict Pushes Up Costs as Dow Warns the Chemical Industry Faces a Tougher Period
-
Hengli Petrochemical’s Dalian Refinery Sanctioned by the U.S.
-
Multiple Chemical Industry Leaders Post Strong H1 Earnings Growth as Sector Profitability Revives
-
Middle East Capital Moves In: SABIC Plans RMB 33 Billion Stake in Rongsheng Petrochemical
-
IFF to Establish Scent Creative Center in Mumbai
-
The Carbon Neutrality Hidden in Adhesives: Henkel’s Acquisition of ATP Isn’t About Sticking Better—It’s About Moving Faster
Recommend Reading
-
Sichuan’s 120,000 Tons Approved, Shandong’s 500,000 Tons on the Way:Is Wanhua Chemical Set to “Break Through” the LFP Market?
-
An Explosion Has Occurred in the Jubail Industrial City, Putting 6–8% of Global Petrochemical Production Capacity at Risk
-
Suave Brands and Elida Beauty Complete Merger to Form Personal Care Giant Evermark with Annual Retail Sales Near $1.9 Billion
-
Clariant and FUHUA Establish Joint Venture to Co-Develop Halogen-Free Flame Retardants
-
Akzo Nobel and Axalta Announce a $25 Billion Merger Deal
-
What is Sodium Hipoklorit? (Definition, Uses & Safety)
-
Sodium Nitrate: Fertilizer, Food Preservative, and Chemical Properties
-
Business Society: Bisphenol A Market to Stabilize First, Then Strengthen in January 2026
-
January China Soda Ash Market Trend Fluctuates Downward
-
Insufficient Positive Factors, Polyethylene Struggles to Rise
