Sketolene Shield (Yellow Bottle)

Best for Outdoor Activities

Description: While the standard Sketolene (Green/Citronella) is popular, the Sketolene Shield (Yellow) is the heavy hitter. It contains a higher concentration of DEET than Soffell and is formulated specifically for "Leeches and Insects." It has a slightly stronger chemical scent but offers superior protection for hiking or evening drinks by the river.

Active Ingredient: DEET 20%

Best For: Hiking, waterfalls, and areas with aggressive mosquitoes.

Price: ~70 - 90 THB

Where to Buy: Watsons, Boots, Big C, and some larger 7-Eleven.

Verdict: If you are leaving the city, upgrade from Soffell to this.