The Huda Beauty Legit Lashes Double-Ended Mascara (£24) offers up two full-size mascaras in one diamond-shaped tube (no really, look down at the top of the tube and it's cut like a gem). The mascara took four years to develop, with much of that probably due to the fact that the product features two totally different mascara formulas and two totally different wand shapes. On one side, you have Curl & Length, which features a curved wand with nine rows of tiny, evenly spaced plastic bristles, while the thin, glossy formula includes five-millimetre lengthening fibres. On the other side, you have Volume, which features a slightly hourglass-shaped wand with longer "intertwined petal bristles", as the brand describes them, that travel all the way along the tip of the wand. Read our full review of the formula here.