Discover five innovative and eco-friendly ways to repurpose plastic bottles in this step-by-step DIY video. Learn how to make ...

If you’ve ever stepped into a gym or scrolled through fitness pages online, you’ve probably seen shaker bottles everywhere. They’re a staple for fitness enthusiasts because they make it easy to mix ...

Which shaker bottles are best? There’s nothing more disgusting than an improperly mixed protein shake. It’s clumpy, the flavors aren’t combined well and the whole thing can spoil your workout.

All products featured on Self are independently selected by Self editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. A good protein powder ...