On warts: There is currently no scientific evidence that banana peel can treat warts, and a 2016 study noted there was no difference between the wart removal rates of banana peel and cryotherapy, with the authors stating that neither intervention was effective, although the small sample size made the results inconclusive.

The method is regarded as unlikely to cause harm, and people either tape a piece of peel over the wart overnight or rub the inside of the peel over it. The oldest traceable source for the practice is a 1981 item in Plastic and Reconstructive Surgery titled "Treatment of plantar warts with banana skin," which is a brief report rather than a controlled trial. No study I located reports a 75 percent reduction in wart size at two weeks.

On burns: The relevant research is in animals and uses processed extracts, not raw peel. Rizka et al. tested a spray gel of Musa paradisiaca peel extract in rabbit burn models, reporting antimicrobial activity and faster burn wound healing, and concluded it shows promising potential for facilitating wound healing. A secondary review of this literature describes the same work in terms of relative speed, not days: the banana peel extract spray gel enhanced wound healing in a concentration-dependent manner via a rabbit burn model, with the high-concentration 20 percent formulation most effective and comparable to the positive control. Figures from the published burn study track healing out to roughly day 26, not three days. A separate 2021 study used banana peel powder inside a chitosan and gelatin dressing: in vivo animal experiments demonstrated accelerated proliferation of blood vessels, angiogenesis, and connective tissue formation.

On pimples: The most cited study is a rat experiment with a dosed extract. Thirty rats were divided into five groups of six: an acne vulgaris group, groups treated with 0.15 percent, 0.30 percent, and 0.60 percent banana peel extract, and a group given clindamycin as the standard drug.

The authors concluded that the extract has anti-inflammatory effects against acne vulgaris by suppressing nodule formation, inhibiting bacterial growth, and decreasing proinflammatory cytokine production. Consumer and fact-check sources are consistent: there is limited scientific research specifically proving banana peel can cure acne, though it contains nutrients and antioxidants beneficial for general skin health , and while bioactive anti-inflammatory components and antimicrobial phenols in banana peel could plausibly help reduce acne lesions, banana peels lack the established acne-fighting compounds . A broader patient-facing summary states: banana skin peel is a low-cost home remedy that may provide a brief soothing or moisturizing feeling but should not be viewed as a medically proven treatment, and current evidence does not support strong claims for acne treatment .