What Is Dry Oil?

What is a dry oil?

When you first encounter the phrase “dry oil,” you might imagine an oil reduced to a powder. In reality, the term doesn’t describe the oil’s physical consistency but how it behaves when applied to skin.

Any oil that your skin soaks up quickly can be labeled a dry oil. Oils that leave a noticeable film or residue are typically referred to as wet oils.

Most dry oils originate from vegetables, seeds, or botanicals that are rich in polyunsaturated fatty acids, such as linoleic acid.

They’re commonly used as light-weight hydrators for hair, skin, and nails. Some frequently used dry oils are:

• avocado oil
• sesame oil
• safflower oil
• sunflower oil
• grapeseed oil
• rosehip seed oil

In the sections that follow, we’ll explore the possible advantages of these oils and consider when choosing a dry oil might be preferable to a wet oil.

What are the benefits of using a dry oil?

Dry oils provide the same hydrating effects as wet oils but without leaving a tacky or greasy layer on skin or hair. Many people favor dry oils because they absorb within seconds after application.

Potential benefits of dry oils include:

• Moisturizes skin. Several dry oils, like sunflower and safflower oil, are high in linoleic acid. This fatty acid may help the skin retain moisture by supporting its water permeability barrier.
• Increases collagen production. A 2013 study in rats showed that applying avocado oil to the skin could boost collagen synthesis and reduce inflammation.
• Improves dry or cracked skin. Evidence indicates that using avocado oil is an effective method for hydrating dry, chapped, or damaged skin.
• Helps fight signs of aging.Research in animal models suggests that the antioxidant content in sesame oil may lower oxidative stress in the skin, which could theoretically help defend against premature aging.
• Reduces sun damage. Rosehip oil is rich in antioxidants that may guard the skin against harm from ultraviolet radiation.
• Promote skin barrier repair.Studies indicate that the linoleic acid in sunflower oil can aid in repairing the skin barrier and preserving skin integrity.
• Helps manage eczema. The emollient properties of dry oils may help relieve the dryness and itching associated with eczema.

Using dry oil for hair

Applying a dry oil can help hydrate hair and reduce breakage and frizz that stem from dryness.

Research has shown that oils rich in saturated and monounsaturated fats penetrate hair shafts better than those high in polyunsaturated fats. Therefore, a dry oil high in monounsaturated fats—such as avocado oil—may be a superior choice for hair care.

How to use: Put a few drops of dry oil on damp hair, then distribute it evenly with a comb.

Using dry oil for skin

Many dry oils are abundant in linoleic acid, which is believed to help maintain skin hydration and support the natural moisture barrier.

A small study with 19 participants reported that topical sunflower oil improved skin hydration more effectively than olive oil.

Research also suggests that linoleic acid may help diminish skin inflammation.

How to use: After a warm shower or bath, massage a dry oil into your skin to lock in moisture.

Dry oil on nails

The same hydrating action that benefits hair and skin can also be helpful for nails. Applying dry oil to cuticles may prevent dryness and reduce the risk of cracking.

How to use: Warm a few drops of dry oil between your palms, then rub it into your cuticles.

Other uses and benefits

There is some indication that applying dry oils topically may support wound healing.

Research has found that oleic acid can accelerate closure of surgical wounds. Avocado oil, for instance, contains a large proportion of oleic acid.

One 2017 trial reported that gentle massage with sesame oil reduced pain in hospitalized patients with limb injuries.

What forms does dry oil come in?

Dry oil is available in several formats, including:

• As a spray. Many dry oils are sold in spray bottles, which can make application to hair or skin quick and convenient.
• In a dropper bottle. Some brands package dry oils with droppers, useful for applying controlled amounts to nails, skin, or hair.
• In shampoos. Certain shampoos include dry oils in their formulations to simplify hair application.
• In moisturizers. Some skincare products and lotions also incorporate dry oils as ingredients.

Side effects and precautions

Dry oils are typically safe for topical use and rarely cause serious adverse effects. However, like any new topical product, an allergic reaction is possible.

Symptoms of an allergic response may include:

• itchiness
• rash
• redness
• swelling
• irritation

Before using a new oil broadly, consider applying it to a small patch of skin and waiting 24 hours to observe any reaction. This simple patch test can help you determine whether you’re allergic to the product.

Where to get dry oil

Dry oils are sold at most retailers that carry beauty products and are readily available online.

Shop for dry oil online.

The takeaway

“Dry oil” describes oils that quickly absorb into the skin.

Most are extracted from seeds, vegetables, or botanicals, and many can moisturize skin and hair without the greasy feel typical of wet oils.

As with any new skincare item, test a small area first and wait 24 hours to ensure you don’t have an allergic reaction before applying it more widely.