This is Max Factor's Fantasy Fire, allegedly a dupe for Clarins 230 more commonly known as 'Unicorn Pee'
Clarins no longer sells the 230 but in the bottle (12ml) it looks like a duochrome which shifts from a reddy copper to a blue / green / purple. The Max Factor (4.5ml) also look like that in the bottle, quite multi faceted.
With Fantasy Fire the effect on the nail is less so, which is a little disappointing. In photos I have seen of the Clarins this is also the case. I think that the two are really compatible and seeing as 230 is discontinued Fantasy Fire is a perfect dupe.
Lasting Power: Average
Opacity: Very sheer, 4 coats. A layering polish, handy for prolonging the life of the little 4.5ml bottle. Also playing about with the different tones and shades it goes with various bases
Brush Type: Little bottle comes with a little brush I am afraid
Fantasy Fire is a very much hyped up, the polish itself is quite sheer and ideal for layering. In the bottle it looks purple flitting to a red, green, and blue tone it almost gives the impression of being oil on water. However on the nail it is less impressive as it doesn't translate across well. Depending on what polish you layer this with would alter the colour shift in the overall duochrome look polish.
£3.99 - 4.5ml