Despite Vitamin D deficiency being a prevalent medical issue, most people are unaware of the condition. Deficiencies can be tested at home through finger-prick blood tests, however fear of needles can act as a barrier to diagnosis; making the tests stressful and time consuming. Through the use of empathetic design, allowing the user to prick their finger without seeing the needle, as well as the integration of compostable materials (such as biodegradable polyhydroxyalkanoates), the sunshine test kit provides a user focused, sustainable alternative to fossil fuel based products on the market.