Once you have the hang of a traditional liquid eyeliner you tend not to stray. However, I have been intrigued by 'felt tip pen' versions. I was tempted to try Soap and Glory Supercat Eyeliner Pen as I have been very impressed by both their lipstick and mascara.
The application of S&G Supercat Eyeliner Pen took a while for me to get the hang of as it is not as 'liquid' as I am used to. Instead of the usual one stroke sweep, you literally draw on the line. However, drag is minimal and the black is very deep so no need to go over your work! The result is a very clean line. I also noticed it stays put a lot better than my old eyeliner. No flaking whatsoever!
Interestingly, you seem to get a lot more use out of this pen compared with the traditional brush and tube. After around 4 months of using this pen it shows no signs of drying out thanks to its secure cap. Furthermore, I imagine this is a lot more hygenic as you are not introducting bacteria into the product.
Soap and Glory Supercat Eyeliner Pen is a fantastic product for those who are not used to applying liquid eyeliner and want to try out the retro cat-eye flick. For me this is an everyday must. However, I do like the precision a more traditional brush gives you.
What formula do you prefer your eyeliner in? Liquid, pen or pencil?