While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review Guidelines here. Parched skin and summer often go hand-in-hand. Whether it’s a long flight, sun-bathing, or cocktails by the pool, this season is full of dehydration culprits. For dewy skin, we’re turning to one of Kourtney Kardashian Barker’s favorite skincare brands, Peach & Lily. The Korean beauty line is currently offering a 40 percent discount on their Peach & Lily Glass Skin Discovery Kit ($39, originally $65), and we’re ready to stock our carry-ons. The kit offers travel…