The article you link to says that that curcumin can't cross the blood-brain barrier and the researchers had to "develop an atomizer to generate a curcumin aeros

The article you link to says that that curcumin can't cross the blood-brain barrier and the researchers had to "develop an atomizer to generate a curcumin aerosol" to deliver it intranasally. I too have read about the benefits of curcumin and try add turmeric to my meals whenever I remember but this article makes me question if it's actually reaching my brain.