Several ways you can do this. What you need to do is make a selection of the blue in the image. You can do this by using color range or creating one using a channel. Making the selection using a channel most often works best using L*A*B* as it you can separate the color without luminosity affecting the result too much. For color range I normally zoom into the pixel level to select the tones that are the most out of whack. Sometimes I'll do this several times to fine tune it. I made a sample using the "B" channel in L*A*B* to create a selection. The B channel is the yellow blue channel, so I duplicated it, and used levels to adjust it - needed to invert it also, as blue is dark in the channel. Then I transferred that channel to two adjustment layers' mask. One was hue/saturation, the other was a curves adjustment layer to try to get the color to match more closely to the rest of the bottle cap. More could be done, but this was a quick sample.
