I have four of these exorbitantly expensive Guerlain Rouge G lipsticks. [Don't judge! They were bought on sale, mkay?]. I’ll do a separate blog post on them eventually, but this article is on the possibility of refilling them.
There have been rumors for many years that Guerlain will be making refills for these Rouge G lipsticks, which they should since the case is too luxe to not be re-used. So I thought to myself that by design, these lipsticks should be easy to replace. I fiddled a little on one, and off came a tube. It is then easily inserted back in. I tried swapping the tubes amongst my Rouge Gs and they are interchangeable. As always, click on the pictures to enlarge.
So bottom line, technically you can replace them, though I haven’t tried it yet with the Guerlain Rouge G refills and testers being sold on Ebay and elsewhere. If you’ve tried it, let me know how that worked for you.