Nitya Dintakurti, who lives in London and is from India, went on the BBC show in the hopes of securing £100,000 for her menopausal cooling device.
Dragons' Den viewers were left furious after Thursday night's episode, accusing guest judge Emma Grede of 'belitting' a young female entrepreneur's business proposition.
Having graduated with a degree in biomedical engineering from Kings College London, Nitya was convinced her innovative product for women could be a hit - but sadly failed to score an investment from any of the five dragons.
Her product, the Coolzen (pictured), was pitched as a wearable cooling device designed to provide instant relief from hot flushes.
I don't think you're in the running when you think about where the competition is,' she said, adding that she wasn't sure Nitya was the right person to spearhead to product.