When a client walks into a studio, they almost always ask for the same thing: "I just want my lashes to look long." But as every professional lash artist knows, length is only half the battle. The true secret to a transformative set lies in the curl.
The curl determines the "vibe" of the entire face. It can open up a hooded eye, create a sultry cat-eye, or provide a fresh-faced "no-makeup" look. If you’ve ever sat at your lash station wondering, "what is lash curl C and D," or how to explain the difference to your clients, this is your ultimate cheat sheet.
At Posh Deluxe Lash Supply, we provide the high-quality fibres and Nano Notch tools you need to execute these curls perfectly. Let’s break down the two most popular curls in the industry.
C Curl: The "Everyday Classic"
The C Curl is the most popular lash curl worldwide, and for good reason. It is designed to mimic the curve of a healthy natural lash that has been enhanced by a high-quality lash curler.
- The Aesthetic: This curl offers a moderate lift that is "Everyday Natural." It creates a bright, open-eyed look without looking overly "obvious" or dramatic.
- Best For: Clients who want a polished, professional look. It is also the safest bet for clients with slightly downward-pointing natural lashes, as it provides a gentle lift without the risk of the lash curling back and touching the eyelid.
- The Vibe: Effortless, chic, and "I woke up like this."
D Curl: The "High Drama"
If a client wants their lashes to be the first thing people notice, you reach for the D Curl. This is a tighter, more semi-circular curl that provides maximum vertical lift.
- The Aesthetic: The D Curl is all about the "wow" factor. It provides a "visible from across the room" effect and is perfect for creating a dramatic "Doll Eye" or a heavy "Volume" set.
- Best For: Clients with naturally horizontal or upward-growing lashes. It is also a fantastic choice for clients with hooded eyes or deep-set eyes, as the tight curl allows the lashes to "pop" out from under the brow bone rather than getting lost.
- The Vibe: Glamorous, bold, and red-carpet-ready.
Choosing the Right Curl for Your Technique
Understanding what is lash curl C and D is only the first step. As a lash artist, you must also consider the health and direction of the natural lash.
- Check the Natural Angle: If a client has extremely downward-pointing lashes, a D curl might actually look a bit "harsh" or create a visible gap at the base. Sometimes mixing C and D curls (using C on the inner corners and D in the middle) creates the most seamless transition.
- Consider the Length: Because a D curl is tighter, it will appear slightly "shorter" than a C curl of the same length once applied. Always account for this when mapping your sets.
- Use Premium Fibres: To ensure these curls don't "fall" or lose their shape over time, you need PBT fibres that have been heat-set correctly. At Posh Deluxe Store, our Champion Volume Lashes are engineered to maintain their specific C or D curvature even in the Australian heat.
Visualising the Difference: C Curl vs D Curl
One of the biggest challenges clients face is imagining the result.
Here’s a simple way to explain it:
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C Curl = natural lift, like a soft bend
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D Curl = dramatic lift, like a strong curl
Same length. Same thickness. Totally different outcome.
This is why curl choice is just as important as lash length or style.
Can C and D Curls Be Mixed?
Absolutely—and many advanced lash sets use both.
Mixing C and D curls can:
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Create texture in wispy sets
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Add lift only where needed
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Prevent the lashes from looking too uniform
Understanding what lash curl C and D do individually allows lash artists to customise results instead of using a one-curl-fits-all approach.
Why Curl Quality Matters for Retention and Consistency
Not all curls are created equal.
Poorly manufactured lashes can:
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Lose their curl over time
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Appear inconsistent across trays
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Make styling unpredictable
High-quality professional lashes—like those supplied by Posh Deluxe Lash Supply—are designed to maintain curl integrity, so what you apply is what your client keeps.
Consistency in curl = consistency in results.
So, What Is Lash Curl C and D Really About?
It’s not about better or worse—it’s about intent.
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Choose C curl for effortless, everyday beauty
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Choose D curl for bold lift and drama
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Mix both for custom, elevated lash designs
Once you understand what lash curl C and D actually do, choosing the right one becomes second nature—and your sets instantly level up.
For Lash Artists: Build Better Sets with the Right Curl
At Posh Deluxe Lash Supply, we support lash artists with professional-grade lashes designed for consistent curl, clean application, and reliable results—because the right curl deserves the right quality.
Ready to stock up? Explore our full range of C and D Curl lashes at Posh Deluxe today!
