Insect Repellent

Vitamin B1 and Sulfur as Natural Insect Repellents

A linen shirt over a porch railing at dusk beside a spray bottle, a lantern, and a sock with yellow sulfur dust

B1 • Bites • What the research says Vitamin B1 for Mosquitoes: Does It Really Keep Them Away? Swallowing B1 to stop bites is one of the most repeated tips online. It has been tested many times. Here is what the research found, why the idea lasts, and what to use instead. See Tarsul Capsules … Read more

Repelling Insects and Insect-Bite Prevention Information

A linen shirt over a porch railing at dusk beside a spray bottle, a lantern, and a sock with yellow sulfur dust

Stop spraying harsh chemicals on your skin. Tarsul’s unique blend of MSM sulfur and potassium bitartrate helps your body produce natural sulfurous compounds that mask your scent from biting insects, while supporting your overall health.