Special effect [Adding highlights to create 3D packaging effect]

[doramildenberg]

How can I make that inner glowing border effect?

thank you 

[Monika Gause]

Please crop the image to what you are referring to.

[doramildenberg]

 the white glowy línes that create  an inner border 

[Monika Gause]

You mean the highlights that make it look like a box?

[doramildenberg]

Yes

[Monika Gause]

Draw shapes that roughly look like those and then apply Gaussian blur (from the Effects menu).

Make them transparent as needed.

[doramildenberg]

Thank you, will try the transparency (hadn't thought of that) 

[John Waller]

Assume you're referring to the white blurred lines which create the pseudo-3D effect on the packaging.

[doramildenberg]

Yes, exactly