Experts from soap, bath foam and lotion companies have been marketing salt for its positive effects on the human body. In a way that the edgy texture of an exfoliating cream can make a person feel rejuvenated, swimming in a pool with a salt water filter system provides a similar feeling of radiance after a dip. A long swim can leave someone thinking they've just walked out of the spa.

"Salt has anti-bacterial qualities, so it's helpful for maintaining bacteria-free skin and preventing itchiness," read an article on the benefits of salt, published by Spa London. "The same abrasive friction between the salt and skin which causes exfoliation, also encourages the circulation of blood. That's what gives the skin an attractive and rosy post-scrub glow."

A person doesn't have to go to a fancy salon in San Diego to find the simple ingredient that induces pleasure and relaxation in spas. Installing a salt water system can bring relaxation and skin care to households.

Clinical treatments
• Under Eye Treatment: Countless products exist on the market to treat dark circles that plague people right under the eyes. A small container of cream can cost anywhere between $5 and $500 to fix the minor imperfection. The home remedy of putting a warm towel soaked in salt water over the eyes has been known to help without the sturdy price tag. Persistent swimming habits can lessen the shadowy eye marks but also enhance the glow of other features. 

• Shiny hair: In addition to refreshing the scalp, salt is increasingly making its way into mainstream hair products for style purposes. A mixture of sea salt, aloe, conditioner and a few other ingredients has been bottled up and marketed to hair fanatics everywhere. The product was designed so that beach lovers could brush a few sprays through their manes and hair would smell and shape in a way that replicates a day by the ocean. Hair brand Julep has created a version that provides protection from the sun and tousled waves, according to the company. Two of the primary ingredients are salt and water, which can accumulate on the scalp after a dip in the pool and the rest of the body can reap the rewards after a swim.

• Tones Skin: The body's largest organ needs care and attention to maintain a healthy glow. Sprinkling some salt in the tub has been known to make dull and tired skin come alive with moisture. The skin is one of the first visible signs of fatigue and aging, which makes it important to take proper care of it. Scrubbing away dead skin cells can speed up renewal and allow it a chance to look refreshed. Sea salt that's integrated into skin care products is usually made from evaporated ocean water. Different minerals and elements remain and the product generates various positive effects on the skin depending on where the salt is from.

Whereas each treatment appeals to people for different reasons, owners of a salt water pool don't have to chose only one benefit. Each swimming session can leave the skin feeling renewed and healthy.