Patient blinding with blunt tip placebo acupuncture needles: Comparison between 1  mm and 2 mm skin press

Conclusion Placebo needles of 2 mm press made more subjects guess that the needles penetrated the skin than 1 mm press needles. The use of small diameter needles increased patient blinding.

Source: Journal of Integrative Medicine - February 16, 2018 Category: Complementary Medicine Source Type: research