Research101

Hey, I know I'm moving off on a tangent here but I'd be very grateful if anyone could help me out with my issue. I am an international student that holds an undergrad degree in Biomedical sciences from Newcastle University (England). I've been quite unsuccessful with my PhD applications to the USA despite having 2 years of independent laboratory experience. I am currently considering getting into a Masters program in the USA in an attempt to substantiate my educational background and to further my research experience. Could anyone advice me on if this is a foolproof plan or if there are any alternative ways to improve my chances of gaining admission into a PhD program in biological sciences? Any suggestions or advice would be much appreciated. Thank you