Pro-Schild’s IRL is DEET-free and made with a nature-inspired repellent. It has a light feel and gentle scent. Our formula has a patented technology (STAYTECTM) that helps the repellent keep biting bugs away for 14 hours. The formula is sweat- and water-resistant and rub-off resistant too. However, Pro-Schild’s IRL formula is not waterproof so it must be reapplied after swimming or showering.

The active ingredient in the IRL is IR3535®, a well-known insect repellent with a long history of safety and efficacy. IR3535® is derived from Beta-alanine, a naturally occurring amino acid. STAYTECTM, our patented long-lasting technology is derived from seaweed and mushroom extracts. However, not all of the ingredients in the formula are natural.

Repellent’s that aren’t enhanced with STAYTECTM can work–for a while. Those repellents are quickly absorbed into the skin or evaporated by the sun, decreasing their efficacy. You may need to apply that repellent frequently to stay protected.

When a repellent is enhanced with STAYTECTM, our patented control release technology, it protects by creating a long-lasting barrier to insects that stays on the skin. This technology is designed to help slow both evaporation and skin absorption of the active ingredient IR3535® providing long lasting repellent protection.

From the manufacturer Merck KGaA:
“Insects use natural odors to navigate. There are various substances in nature which provide signals to insects. For example, there are substances which help male mosquitoes find females or guide females to a host where they can feed on blood. IR3535® is based on a natural amino acid called be B-alanine. It sends out a simple message to insects: ‘Stay away!’ IR3535® is a repellent that tells insects to move away from skin, textiles and hair. Some repellents also have an insecticidal effect, which means they may actually kill insects after contact. This isn’t the case with IR3535®, which only sends out a message to go away and it doesn’t harm insects.”

Studies conducted at the Laboratorios Ecolyzer, an independent accredited lab in Brazil, and the University of Florida (UF) in collaboration with the London School of Hygiene and Tropical Medicine showed 14+ hour protection times.

We’re proud to make a repellent that can be used by the whole family. Our Insect Repellent Lotion is suitable for use by children over two months and for pregnant and breastfeeding women. (See IR3535.com and the CDC, Centers for Disease Control and Prevention, Chapter Two, Pre-travel Consultation, Children and Pregnant Women.)

Although the IRL formula hasn’t been tested for use on pets. Merck, the manufacturer of our active ingredient, IR3535®, reports the repellent is safe for pets. In addition, some of the toxicological tests of the Pro-Schild’s IRL have been done using rabbits and rats.

The formula can be worn with sunscreen. Sunscreen is meant to seep into the skin. It should be applied first. The RIL formula must be applied last to effectively repel insects.

Our lotion, wipes and sachets should be stored in a cool, dry place below 25°C and away from exposure to heat or direct sunlight. Low temperatures help to increase shelf-life.

Our product is made in the USA.

The formula can cause irritation if rubbed in the eyes. First, rinse your eye with water then consult your physician or your local poison control center if eye irritation persists.

The formula can cause marring of resin-based plastics, leather and painted surfaces, including nail polish.

Our tests were run at Laboratorios Ecolyzer in Brazil and the University of Florida (UF) in collaboration with the London School of Hygiene and Tropical Medicine. Ecolyzer is approved by the Brazilian Health Regulatory Agency, ANVISA, and the LSHTM tested our formulation in accordance with US EPA guidelines.

Shake bottle before use. To protect the skin from biting insects, apply IRL evenly over exposed skin & refer to the precautions. We recommend adults assist children under the age of 10 with their application. Do not apply on children’s palms.



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