Rune Allen

Fun fact: The approximately 25,000 sweat glands in our armpits (yes, you read that right) only constitute 1 percent of the sweat glands found on our bodies. Millions of others exist on our feet, under our breasts, in our groin area, and on our thighs and lower back.

Whole-Body Deodorants Are Trending—Here's Why Whole-body deodorants are specially designed for all-over body use. Available in creams, sprays, sticks, and wipes, you’ll have your pick when deciding which formula is best for you. Learn more about them straight from dermatologists, here.

Retinoids—including retinol and other vitamin A derivatives—reign supreme as one of skincare’s most popular do-it-all ingredients. If you’ve considered incorporating vitamin A into your routine, however, you’ll know not all formulas are created equal. Added to the fact that many retinoid products fail to list the specific type of vitamin A they contain, or the potency, the search for the best retinol serum quickly becomes the wild west.

Shoppers Say This Retinol Serum “Brightens” and “Tightens” Skin Better Than Prescriptions The Medik8 Crystal Retinal Serum is on sale up to 30 percent off. Shoppers say the gentle yet effective formula is better than prescription options. It brightens dark spots and tightens without irritating sensitive skin.

New York City is experiencing an intense heat wave. It's so hot and humid that commuting to the InStyle office feels like intense cardio. So, as far as our beauty routines are concerned, we're all about the products that help us move through the sweltering weather smoothly and worry-free.

16 Beauty Products InStyle Editors Are Loving Right Now From a botanical-laced cleansing balm to a must-have detangling spray, shop the 13 products InStyle editors can't get enough of here.