Everyone with long or straight hair knows that getting out of the shower and rubbing a towel on your hair to dry it is not enough. A hairdryer is necessary if you don’t want a frizzy, tangled mess later.
Many people with wavy or curly hair use a diffuser attachment on their hair dryer to disperse the warm air more evenly. But what if you use a diffuser on straight hair?
While designed to help people with naturally curly hair, a diffuser can help bring new life to your straight hair.
Key highlights
- A diffuser can add volume, lift, and a soft, tousled finish on straight hair.
- Best results: Type 1C (coarse straight) and Type 2A (slightly wavy). Type 1A results are usually subtle.
- It will not create tight ringlets on naturally straight hair without hot tools or chemical treatments.
- Use low heat and low airflow, cup hair in the diffuser without moving it, then finish with a quick cool shot to help the volume last.
What Is a Diffuser Used For?
A diffuser is a flat, round attachment for hair dryers. Its function is to do what its name implies. It diffuses the hot air to make it more gentle on your hair. It does this by dispersing the air over a wider area of your head, making it less likely to damage your hair and dry it more evenly.
Diffusers are included with most hair dryers, though you can buy some of a higher quality separately. If you buy one, be sure it has a universal attachment so you can use it with your hair dryer.
The hair dryer diffuser is for people with naturally curly or kinky hair. They like it because it is less likely to disrupt their natural curls. It also adds more body and bounce.
Can You Use a Diffuser on Straight Hair?
Most advertisements for diffusers target people with curly hair. However, hairdressers will tell you that it is a fantastic tool for people with straight hair to avoid frizz.
This technique works best for Type 1C (coarse straight) or Type 2A (slightly wavy) hair. If you have Type 1A (fine, very straight hair), expect subtle lift unless you use a strong-hold mousse.
Hair dryers are also known for causing heat damage because the direct blowout can provide intense heat to one area of your head. A diffuser spreads the hot air, making it less concentrated in one area.
What Does a Diffuser Do To Straight Hair?
A diffuser adds volume to your hair when used with the right products. It can add texture, movement, and body to straight hair. Note: It will not create ringlets in naturally straight hair, but it can create a “tousled” or “undone” look for a night out.
Here are some benefits of using a diffuser attachment with a hair dryer for straight hair:
- The diffuser attachment prevents the strong, direct air from blowing hair straight and flat. This allows more natural volume and texture.
- Diffused air gently lifts and separates strands of hair while drying. This helps create more volume at the roots and along the length of the hair, instead of just blow-drying hair flat against the scalp.
- Gently scrunching hair into a diffuser can help bring out any natural bend or wave.
So, a diffuser can give straight hair more body and movement, rather than just drying it pin-straight against the head.
How To Use a Diffuser on Straight Hair
If you are ready to try using a diffuser on your straight hair, there are a few steps to follow to maximize its benefits.
Wash Your Hair
Whether you’re using the diffuser to add texture or volume, you always have to start by washing your hair. Be sure to use conditioner as well.
After washing your hair, gently squeeze out excess water with a microfiber towel (do not rub). Then, detangle gently with a wide-tooth comb or a wet brush. When you use the hair dryer, you want your hair damp, not dripping.
My Advice and Notes
- Apply a heat protectant to damp hair before blow-drying. For a peer-reviewed study on hair dryer heat and hair damage, see: Annals of Dermatology: Hair Shaft Damage from Heat and Drying Time of Hair Dryer.
- Avoid rubbing the diffuser in circles. It can create friction and tangles on straight hair. Place a small section of hair into the diffuser bowl, hold still for a few seconds, then move.
- If you want defined curls on Type 1A or Type 1B hair, you will usually need hot tools, rollers, or another setting method. A diffuser mostly boosts texture that is already there.
Steps for Adding Volume
If you want to add volume to your straight hair, check out the steps below.
Add Some Products
Apply a heat protectant to damp hair before blow-drying. After you have done this, you may want to try adding a volumizer, a mousse, for example.
This type of product should be applied to the roots, and it’s easy to find at a supermarket or at your hairdresser.
Use Hair Clips to Create Volume
Put the clips near the roots. This will lift your hair and promote volume. You can now dry your hair with the diffuser or dry your hair naturally. See what works best for you.
Diffusing
Attach the diffuser to your hair dryer. Set the dryer to low heat and low airflow. It will take longer to dry your hair, but doing it slowly will help dry it more evenly.
Start by drying the back of your head, then move to the sides and front. Cup sections of hair gently in the diffuser without rubbing. Hold the diffuser still for a few seconds, then move to the next section.
Steps for Adding Texture and Loose Waves
If you’re tired of your straight-hair look and want a temporary change, you can use the diffuser to add texture and a soft, undone finish.
Add Products
You may want to try adding a texturizing product to your hair for a better effect. You can buy it at your local beauty supply store, which will help add grip as you style it. Apply it to your hair at the roots and work outward. You should also apply a heat protectant.
Using Diffuser
Place the diffuser on the side of your head at the roots and gently lift the section into the bowl. Hold it still for a few seconds until the area is mostly dry, then move to another section of your head.
Start at the top of your head and work your way down toward the ends. Continue to do that until your hair is dry.
As you move the diffuser throughout the different sections of your head, lift the roots and guide your hair into the diffuser.
If you want extra shine, add a small amount of oil after your hair is dry. This can help smooth the ends without weighing down the roots.
A light hold product may help keep the style in place. Hair gels and lotions may help as well. Head over to your favorite beauty supply store and get a few to try out and find the ones that work best for you.
So, if you are looking for a way to add body, texture, and subtle waves to your straight hair without an expensive visit to a stylist, using a diffuser can help. It can also make the airflow feel less direct than a standard blow-dry.
However, those with stick-straight hair and who want a very smooth finish may not get much benefit from using a diffuser as it can disrupt extremely straight styles.
FAQs
A diffuser can add volume, texture, and a soft bend to straight hair, and it can enhance any natural wave you already have. It will not create tight curls in naturally straight hair on its own. For defined curls, most people need a setting method like rollers, braids, or hot tools.
A diffuser’s primary purpose is to spread the hot air from a hair dryer more evenly across your hair. Because of that, reducing frizz is one of its intended uses. Using a diffuser should not make your hair frizzy when used correctly.
A diffuser may not add curls to short hair. But if you want to add body and volume to your hair, a diffuser will help with that.