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Why do we choose icaridin or picaridin as the ingredient for insects repellent?
First of all, we need know its working theory.
No.1 How does insect find their blooed hoster?
Insects find their blood host by following exhalant carbon dioxide and by recognizing specific smell patterns.(as below picture)
No.2 How does icaridin or picaridin work?
Applying picaridin repellent changes this smell patten drastically that the blood insects can no longer find the potential blood host. Insects will continue to avoid the treated areas of skin for as long as this protective layer remain effective.(as below picture)
No.3 What is the efficacy of icaridin or picaridin?
| Icaridin Purity | 5.03% | 10.02% | 15.03% | 20.02% |
| Efficacy | 2h | 6h | 8h | 10h |
No.4 Why icaridin or picaridin is the most popular insect repellent for Zika Virus?
REPORT OF THE FOURTH WHOPES WORKING GROUP MEETING
WHO/HQ, GENEVA
4-5 DECEMBER 2000
(EXCERPT)
Conclusions and recommendations
1. Icaridin has a good safety profile and cosmetic properties. Alone or in typical formulations it does not significantly attack common household materials including plastic coatings and varnishes.
2. Icaridin was tested under temperature and tropical conditions against important desease vectors Ae.Albopictus, An.gambiae and Cx.quinqefaciatus and several pest mosquito demonstrating excellent repellent properties comparable to, and often superior , to those of the standard DEET.
3. At the manufacturers’s recommended target dose of 0.3 mg a.i./cm2 of skin, icaridin confer more than 95% protection up to 6-7 hours after application. At comparable doses, icaridin showed significantly longer protection times than DEET against An.gambiae complex malaria vectors; although further studies are needed to assess its efficacy against a broader range of anopheline vector species, icaridin can be recommended as the repellent of choice for malaria prevention.
4. Given the promising results shown by icaridin , efficacy test of this chemical for treatment of mosquito nets, garments, and other materials is recommended.
5. Icaridin is recommended as a safe and effective insect repellent for human use.
