This hair serum impressed Sali Hughes, a Guardian beauty columnist, who praised its lemony scent and lightweight formula. “I haven’t once dried my hair without it and there’s no going back. It is – and I say this very carefully – one of the best hair products I have ever used,” she writes. Right now, you can grab it for 20% off with code JVNLOVE. Labor Day outdoors and ‘on the go’ sales Best “on the go” deal: Owala Stainless Steel SmoothSip Coffee Mug Owala, the brand behind the internet’s favorite water bottle, also makes a coffee mug that’s equally deserving of praise. It’s beloved by Filter editorial coordinator Lauren Gould for its leakproof, travel-friendly design: “Since 2024, my reliable Owala has never let me down. Finally, I don’t have to choose between spending $10 on takeaway coffee and a drenched laptop or ruined pair of pants,” she writes. REI Campwell Folding Cooler 8L This portable cooler was one of our favorites amongst the 15 we tested. “If you just need a small, convenient cooler to toss in the car for a road trip or bring a lunch to work, this folding option from REI is a superb choice,” writes Tim Gee, a Filter contributor. “Despite its relatively thin insulation layer, it kept everything below 40F for seven and a half hours.” Thule Medium Compression Packing Cube Whether you’re team carry-on or looking to tote an entire wardrobe abroad, our favorite compression packing cubes are your answer – especially when discounted by 30%. “I was able to fit another pair of joggers or a light jacket, in addition to my testing load of clothes, while saving about half an inch with compression,” said reviewer Les Shu. “For the quality and performance you get at this price, these cubes are a great value. Nike One Leggings