Over the years, the British Acupuncture Council has done an excellent job of working through the swathes of research into the efficacy of acupuncture, and have a page on their website dedicated to informing the public. You can access it by clicking here.

There is also a video on their Youtube channel, looking at the same subject, which I have added in case you are interested:

https://www.youtube.com/watch?v=DWOm9GsKaaE&t=187s