Top to bottom: MAC IGNK (one swipe), MUFE 23L (one swipe), MAC IGNK (6-7 swipes), MUFE 23L (3 swipes)
Liners on inner corner. Left: MUFE 23L, Right: MAC IGNK (Please note. I rubbed my left eye so MUFE faded which is stupid since I should have reapplied...Sorry)
Both the MAC IGNK and MUFE 23L liners that are meant for highlighting, however they do have a couple differences. Both are champagne beige liners that I think is a great way to highlight. This type of liner is a necessity in my makeup collection.
In terms of color + pigmentation, the liners have a different undertone. MAC IGNK is more of a warm yellow/golden undertone, whereas MUFE 23L is more or a cool pink undertone. (You can definitely see this in the swatches. I prefer a warm undertone since I have a neutral to warm skin tone. Although I prefer the color of MAC IGNK, MUFE 23L is much more pigmented.
In terms of texture + application, these liners differ greatly. I haven't tried any other MAC Eye Kohls or MUFE Aqua Liners, so my view on these is only directed to these two liners. MAC IGNK is much harder than MUFE 23L. Unlike MAC IGNK, MUFE 23L glides on smoothly without dragging my eyes at all. I had to repeatedly draw MAC IGNK to have it show up. MUFE 23L is much more easy to blend also because of the creamy texture, I think that it has a similar texture to the MAC Chromographic liners.
The wear of both of these liners is great. I think I can get about 8-9 hours of wear from both of these, unless I rub or touch my eyes.
Overall, I prefer the MUFE 23L liner. It really is because the texture is so easy to work with. It would be so nice if MUFE had a warm toned liner like this. MAC IGNK is also very nice, and if it were not for the texture, I would have picked it over MUFE. Also, MUFE 23L is in MUFE's permanent line whereas MAC IGNK was limited edition. I definitely think that if you missed IGNK in the Champale collection, you should pick up the MUFE 23L. They're pretty much dupes since you can't really see a different once they are on the eyes.
MAC IGNK went for $14.50 for 0.048 oz. MUFE 23L is $17.00 for 0.04 oz.
Hopefully that was helpful!
Thanks for reading! Byebye. *_*