For centuries we've enjoyed and benefitted from the most commonly known hydrosol, rosewater.  A true gift from nature, rosewater is intensely floral in scent and taste, a quality that lends itself brilliantly to delectable deserts.

Hydrosols are the distilled water by-product of the distillation process which creates essential oils. They are infused with microdrops of essential oil as well as water-soluble plant components which gives them their scent and therapeutic qualities.  They have taste, scent and a chemical makeup that makes them therapeutic.

Spritz them on your face, neck and body to cool and refresh yourself in summer’s heat or moisten the air in winter’s dry indoor heat. Spray in the dryer before loading your clothes or spray on clothes during ironing to beautifully scent your laundry. Refreshen the air in a stuffy room. Hydrosols act as air-borne virucides and may be used to disinfect the sick-room, hotel room or airplane. Use on hands to disinfect them when soap and water are unavailable.

Rosewater: The most popular hydrosol. Rosewater is a toner for all skin types and is the best for aging skin. It eases nervousness and is an aphrodisiac. Rosewater is also used in cooking and is popular in many Middle Eastern and Indian dishes, both in deserts and savory dishes. Check out this article from the New York Times: http://www.nytimes.com/2010/09/01/dining/01power.html?th&emc=th 
Lavender Water: Lavender hydrosol is very gentle and balancing for all skin types. It cools burned skiing, reduces mental fatigue, relaxes and refreshes. Great for jet lag. 
Chamomile Water: Chamomile Water is very soothing for dry, inflamed and sensitive skin. One of the best all-purpose waters, spray on your face, neck and body for cooling relief from summer's heat. Because of it's effect on the nervous system chamomile is a useful aid in stress reduction, depression and insomnia. It can be mildly euphoric, instilling a feeling of well-being. Useful at bedtime for physical relaxation and a restful night. Chamomile water is wonderful for skin care calming rashes, sensitivities and redness. It is the number one choice for baby care. Diaper rash redness and pain can be soothed with dilute chamomile.