It’s been a long time since I’ve been genuinely floored by a beauty hack, but Delevingne’s takes the cake, IMO. “For a long time — way before I even worked with L’Oréal — I would always use Elnett [hairspray] on my brows because it reminded me of my granny,” she tells me. “I’d just get a little mascara wand and put it on [the bristles].” (Editor’s note: I can confirm this indeed, works like a charm.) However, if you prefer to stick to actual gels Delevingne and I both swear by, try L’Oréal’s Infallible Brow Lamination gel, currently on special at Chemist Warehouse for $25.99. It’s especially great for naturally thick brows since it delivers all-day hold but doesn’t feel crunchy, nor does it leave visible, dandruff-like residue that shows up in darker brows like mine. And it seems Delevingne agrees: “I think if I laminated my brows, they would look crazy since I already trim them a lot, but I love the lamination gel.”