After checking it out in the store a few times I finally bought the prepare your lips! lip base by p2 and here's a little review.
If I remember correctly I paid 2.25€ for this base (at dm). As you can see the base comes in stick form. I really liked the texture, which is very velvety and soft. On the lips it reminded me of how the studio secrets primer feels on your skin. Also it smells a little like vanilla =)
This is what the base looks like on your lips. I only applied it on one half to allow a direct comparison. I tested it twice actually, once with a cheaper, shiny color and once with a high-end almost matte lipstick.
[ alverde 107 red diamond // MAC peachstock ]
The primer lightens up your lips but unfortunately it also highlights any flaky parts.
The base feels nice on your lips and I felt like the lipstick applied a bit smoother with it on but, other than that, the effect is pretty much non existent.
I usually like p2 products but I wouldn't buy this one again..
I hope this was helpful!