Barrier4

Barrier4™ creates an invisible barrier on the skin that sits between your feet and shoes to block the friction that causes hot spots, irritation and blisters. It provides around ~6 hours of protection with a typical application (which is 20x the protection of wax sticks), works with all types of shoes (not just heels), is hypoallergenic, dermatologist tested and naturally breaks down for easy removal with a washcloth, soap and water.

Barrier4™ works with ALL types of shoes as a fast-drying, super strong-yet-flexible-and-breathable skin protectant. Barrier4™ is also safe and effective for use wherever else clothing-induced friction occurs, like under bra straps or a backpack. It can even be used to protect from sports-related chafing. Note: If using for skin-on-skin friction, it is essential that you allow the barrier to dry fully on both sides before allowing the surfaces to touch, or they can stick together.

Wax sticks work by temporarily lubricating your skin, but then rub off on your shoes within ~15 minutes, quickly leaving your feet vulnerable to hot spots and blisters. Bandages and inserts are unattractive, quickly fall off, are uncomfortable and can cover only small areas of your foot. Barrier4™ provides more than 20x better protection against blisters than wax sticks and won't rub off on your shoes. Unlike bandages and inserts, Barrier4™ is completely invisible and provides 100% comfortable protection to any part of your foot.

Extensively! In addition to choosing individual ingredients with excellent safety profiles, we have had our formulation reviewed in 3 separate independently run clinical studies of over 150 human volunteers. These studies were performed under the care and observation of clinical dermatologists to ensure the product is effective, safe and completely non-irritating.

A typical application of Barrier4™ lasts ~6 hours. It may last for a longer or shorter period depending on many factors, including how thickly you apply it, how aggressive your shoes or activity are, or how humid the weather is. If the the coating begins to wear down sooner than desired, you can apply a second layer while on the go. The Barrier4™ coating is designed to resist light sweat and water, and to be flexible and breathable enough to stay comfortably in place while you walk, run or dance. After several hours, the Barrier4™ coating is designed to begin to break down and flake off, allowing for easy removal with a normal wet washcloth or loofa and light scrubbing. No chemical remover is typically required, but for a little extra help softening the barrier, you can use nail polish remover (acetone), ethanol alcohol (like vodka) or most common body oils.

You will receive effective coverage with one layer, but can apply a second layer for added protection. Generally, two layers is plenty; three layers may cause the coating to become so thick that it begins to break down sooner.

No. Barrier4™ is designed only to prevent blisters by creating a protective coating on your skin. It will not help to heal existing blisters, and you should be careful NOT to spray it on existing blisters or broken/irritated skin as it can sting.

No. We designed Barrier4™ to help prevent the most common source of skin irritation and blisters: the friction that results from your shoes repeatedly rubbing against the skin on your feet. However, the product will not help to prevent the types of blisters that are caused by pressure or poorly fitting shoes. So don't spray it onto the bottoms of your feet.

Prevention is better than a cure. That’s why Barrier4™ blocks friction from where shoes might rub, working to stop blisters before they even form, rather than treating them once they’re there.

Yes. Barrier4 meets the TSA requirements for limited quantity aerosols and are viewed to be safe to bring aboard aircraft. It is important to remember that TSA requires all liquid, aerosol and gel items fit in a clear, sealed 1-quart plastic bag, and only one plastic zip-top bag is permitted per passenger inside carry-on baggage. Please note that international guidelines might differ from US requirements, so we recommend checking with your airline prior to international travel.