Vitamin C is found in many immune booster supplements. It’s one of the best antioxidants in the natural world. Vitamin C has been shown to speed up recovery from illness, contribute to healthy inflammation, and neutralize free radicals linked to disease. In Bare Feet, vitamin C is also one of the critical building blocks to “help shape, strengthen, and promote integrity to healthy nail growth,” according to the manufacturer.

Vitamin A is best known for its effects on eye health and vision, although some studies have linked it to immune function. According to the makers of Bare Feet, vitamin C helps with hydration, making it easier for your skin and nails to grow. Your skin and nails won’t grow quickly if they’re dry and cracked. Plus, dry skin is more prone to infections, as it’s easier for fungi to enter between the cracks in dry skin.

Oregano is an herb used in cooking and natural remedies. Some take oregano oil for immune function. As the makers of Bare Feet explain, oregano oil has “heavy-duty antifungal, antimicrobial, and antibacterial properties” while helping with toenail fungus, athlete’s foot, and ringworm, among other areas of health and wellness. The makers of Bare Feet cite one study where oregano had powerful antifungal effects against multiple fungal dermatophyte species, including T. rubrum, T. interdigitalis, Fusarium p., and Scopulariopsis bevicaulis.

Like all types of vinegar, apple cider vinegar has natural antifungal properties. It can also contribute to gut health. Seventy percent of your immune system is found in your gut, and promoting gut health could make it easier for your body to fight off fungal infections. Apple cider vinegar is also rich in antioxidants, flavonoids, polyphenols, vitamins, minerals, and other active ingredients.

Garlic bulbs have been used for centuries as a natural remedy. Today, we know garlic works because it contains an antioxidant called allicin. Allicin could promote antibacterial, antiviral, and antioxidant effects while balancing cholesterol, heart health, and immune function, among other areas of health.

Pomegranate is a fruit packed with vitamin C and other antioxidants. It contains punicalagins, for example, special compounds linked to antifungal effects. The makers of Bare Feet cite one study where the natural molecules in pomegranate extract blocked the growth of Candida albicans fungi.

Sweet wormwood is one of the most unique ingredients in Bare Feet. It’s been known in traditional European medicine for centuries as a remedy for various conditions. Today, sweet wormwood, according to the makers of Bare Feet, helps to defend your body against toenail fungus specifically while helping to “stop several strains of fungus dead in its tracks.

Turmeric is one of the trendiest antioxidants in the natural world, and some people take it daily for health and wellness. Turmeric is a root rich in a natural antioxidant called curcumin. By promoting antioxidant effects, turmeric and curcumin could make it easier for your immune system to do its job.

Olive leaf extract is found in heart health supplements. It’s packed with oleuropein, a natural molecule linked to cardiovascular health and antioxidant effects. Plus, as the makers of Bare Feet explain, olive leaf “contains fatty acids that nourish the skin.” These fatty acids promote your skin’s natural barrier, helping to defend your body against further infections.

Black pepper is the only active ingredient in Bare Feet not chosen for antifungal effects; instead, it’s designed to boost the absorption of other active ingredients, including turmeric. One study found that black pepper extract boosted the absorption of turmeric by 2,000%. Black pepper could also contribute to active effects on its own. According to the manufacturer, it “supports healthy free radical defense and immune barrier responses,” making it easier to defend your body against toenail fungus.