Nails Inc. Baker Street might be better known as "that polish Beyoncé wore after she had Blue Ivy". I've had my eye on this famous cobalt blue for quite a while, but what always stopped me was this niggling suspicion that I already had a very similar shade back at home, Ulta3 Blue Marlin. When I unexpectedly spotted Baker Street on sale at a chemist near my work, I decided it was a sign that we were meant to be. Plus, even if the colour ended up being an exact dupe of Blue Marlin (unlikely), I'm such a fan of the Nails Inc. formula that it would've still been worth it.
Once at home, I tested Baker Street next to the darker, more navy Blue Marlin, and thankfully they were sufficiently different to justify having both. After enthusiastically painting both hands with Baker Street and closely examining my nails over several days, I've concluded that for me, the colour is only "pretty good", not "mindblowingly, heart-stoppingly amazing". I can see why some might think it's truly an exceptional shade, but to me it's just a bit too medium blue with a hint of creaminess and nothing else. It reminds me of a darker shade of primary blue or the non-metallic version of deep, bright blue car paint. Don't get me wrong, I imagine this exact shade of blue would be hard to find a perfect dupe of, and it is unique and eye-catching, but I just don't personally adore it. Something tells me without Beyoncé's personal endorsement as documented through pap snaps, Baker Street wouldn't be anywhere near as popular or coveted. The impeccable Nails Inc. formulation doesn't disappoint though, with an absolutely buttery consistency that is largely opaque with one coat, and with two, leaves your nails looking so smooth, glossy, evenly painted and neatly manicured.