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We believe knowing your curl pattern is important — however, at DevaCurl® determining your hair texture is even more important in finding what your waves, curls or coils need.

When we say 'hair texture' or 'curl texture', we refer to the thickness or width of the individual hair strand, better known as fine, medium or coarse. That's because waves, curls and coils can be fine, medium or coarse. Curl pattern, which we reference as waves, curls and coils, speaks to your strands' shape.


No matter if you have waves, curls, or coils you can have fine, medium or coarse texture.

THE STRAND TEST

The easiest way to determine your hair texture is by taking a single strand and laying it flat on a white piece of paper.

If your hair is not easy to see or feel between your fingertips, appears thin, and may not hold styles well, you have fine hair texture.

If your hair is visible, not hard to feel between fingertips, appears full, and holds styles fairly well, you have medium hair texture.

Lastly, if your hair is highly visible, easily felt between fingertips, appears very full, and holds styles very well, your hair texture is considered coarse.


DECODING YOUR PATTERN

Waves

Wavy S-shaped bends ranging from subtle to defined, also referred to as Type 2.

Curls

From tight coils to Z-shape zig-zags and everything in between, also referred to as Type 3.

Coils

From tight coils to Z-shape zig-zags and everything in between, also referred to as Type 4.

Discover products that will give your waves, curls, or coils what they crave. Are they dry, lacking definition, or damaged? We’ve carefully curated products to suit all of your needs.


Moisture

Formulas with a moisture preserving blend to give your curls what they crave.

Color Care

Instant uniform toning that kicks brass to the curb.

Scalp & Hair Reset

Healthy-looking waves, curls and coils start at the scalp.

Repair & Bond

Recoils damaged curls, softens and works from the inside out to help re-link broken bonds, improve strength, seal split ends and protects from future damage.

Prep & Protect

Essentials to use before styling for detangling, moisture, or heat and UV protection.

Define

Style-extending formulas that have your back between wash days.

Volumize

Body-enhancing formulas for when your waves, curls and coils need a lift.

Refresh

Style-extending formulas have your back between wash days.

Finish

Look-finishers and shine enhancers for the perfect finishing touch.

See Chart

It’s in the best interest of curls. These ingredients can be harsh on curls, stripping their natural oils, blocking moisture, or causing buildup that can weigh them down.

We want the best for your waves, curls and coils while providing you with ultimate Curl Flexibility™ — get more details on what our new products are formulated without here.

We know that our curl community wants products that are safe and effective. That’s why all of our products comply with the safety and manufacturing regulations for cosmetics in the US, Canada and the European Union (which has some of the strictest cosmetics safety rules in the world)!

Formula Safety Testing

Curly (wavy and coily) hair is the best hair, and we want to keep it that way. Every single DevaCurl® formula has been tested to ensure that your curls get the TLC that they need. Here’s how:

Safety In Use Testing

350 Curly people. Four weeks. Happy Curls. All of our products undergo “Safety-In-Use Testing”, or SIU, by Board-Certified Dermatologist and well-known hair expert, Dr. Zoe Draelos. During SIU, Dr. Draelos assessed all of our products for the potential to have an adverse reaction under normal use conditions over a 4-week study period. The result? 350 happy curls at the end of 4 weeks. No adverse events occurred during SIU – that means no irritation, no scalp redness and no dryness. During the SIU, we also asked participants what they thought about the products and those results support the claims you see on our bottles! These tests confirm that all of our curl-friendly products are safe and that they deliver the results you have come to expect from DevaCurl®.

Hair Breakage Test: Tensile Break Strength

Did you know that curly hair has more disulfide bonds than straight hair which makes it more susceptible to breakage? We have formulated every single DevaCurl® product with this in mind and the Tensile Break Strength Test keeps us honest. It determines if our products decrease the strength of the internal hair structure or have the potential to permanently change curl pattern. Based on these tests, we know with certainty that all DevaCurl® products are curl-friendly – our products have no negative effect on the break stress or break extension of either virgin or bleached hair.

Product Allergen Test: Human Repeat Insult Patch Testing

Let’s be real – allergies aren’t fun. In the HRIPT, all of our products were applied multiple times to a patch of skin over the course of 3 weeks. Our product showed no potential for skin irritation or allergic contact sensitization. All test results were signed, sealed, and delivered by a Board-Certified Dermatologist.

Package Compatibility

Our formulas and packaging swiped right on each other and plan to live happily ever after ::swoon:: Every one of our products has to pass “package compatibility testing” before it gets on the shelf. This test confirms that there are no safety or quality issues that occur from the interaction of our formulas and their intended packaging over a period of several months at extreme conditions. The results confirmed that they’re a perfect match.