Perfect Pairs: Why Some of Your Favorite Beauty Ingredients Go Hand-in-Hand

Catch a whiff of this potent combination of rosemary and lavender—arguably two of the most invigorating herbs that Mother Nature has to offer—and you'll instantly understand why the two were made for each other. The notes' fresh, earthy scent add an allure to cult-favorite fragrances like Tom Ford Neroli Portofino Eau de Parfum ($220; tomford.com) and Acqua di Parma Colonia Eau de Cologne Natural Spray ($173; nordstrom.com).

For hair, rosemary extract is known to stimulate the follicles, promoting hair growth and strength. Meanwhile, lavender essential oils condition strands, offering softness and shine. Similarly, when used in skin care rosemary plays an antiseptic role while lavender sooths irritation.

Try: Lavett & Chin Leave On Conditioner Rosemary & Lavender Blend ($30; sephora.com) and Belif Hungarian Water Essence ($42; sephora.com) to experience the benefits of the power couple from head to toe.  

The classic tip for banishing under-eye circles and bags is to apply cucumbers or tea bags on the eye area, so it makes sense that these two would join forces to create dozens of skin care products on the market. Just as they work to soothe tired eyes, the calming ingredients are tried-and-true for reducing inflammation on the rest of the face as well.

Try: Peter Thomas Roth Cucumber De-Tox De-Puffing Eye-Cubes ($50; peterthomasroth.com) and Ole Henriksen Nurture Me Facial Water ($22; sephora.com) to give your skin a well deserved pamper sesh.

On your next cheat day, you can opt to reach for the sinful candy bar, or indulge in a decadent almond-coconut beauty product that reinvents the meaning of almond joy. As two of the richest, most hydrating natural oils, almond and coconut oils are often used in hair and skin care products targeted at women looking for a moisture surge. If you find that your hair is particularly parched after a brutal winter, reach for the oil blend to quench your thirst.

Try: Earth's Nectar Coconut Curls ($24; sephora.com) for hair and Laura Mercier Almond Coconut Milk Soufflé Body Crème ($60; lauramercier.com) for your body.