How to Choose the Right Lash Curl: J, B, C, CC, D, DD, L & M Curls Explained

Choosing the right lash curl is one of the most important decisions you'll make when creating a beautiful set of eyelash extensions. The curl you select can completely transform the finished look, enhance your client's natural eye shape, and create anything from a soft, natural enhancement to a dramatic, full-glam effect.

With so many lash curls available, it's easy to feel overwhelmed. In this guide, we'll explain the differences between J, B, C, CC, D, DD, L and M curls, helping you choose the perfect option for every client.

Why Lash Curl Matters

The curl of an eyelash extension affects:

• The overall style of the lashes.
• How open or lifted the eyes appear.
• The suitability for different eye shapes.
• Retention, as the natural lash needs enough contact with the extension for a strong bond.

Rather than choosing the most dramatic curl every time, it's important to consider your client's natural lashes, eye shape and desired result.

J Curl

J Curl is the straightest lash curl available.

It closely mimics the appearance of natural lashes, making it ideal for clients wanting an understated, everyday look. J Curl is particularly suitable for clients with naturally straight lashes or mature clients who prefer subtle enhancement.

Best for:

• Natural lash sets
• Classic lashes
• Mature clients
• Inner corners
• Male clients

B Curl

B Curl offers a slight lift while still maintaining a natural appearance.

It creates a little more definition than J Curl without looking overly dramatic. It's perfect for clients who want their lashes to look naturally fuller.

Best for:

• Soft, natural styles
• Classic lashes
• First-time lash clients
• Everyday wear

C Curl

C Curl is one of the most popular lash curls among lash artists.

It provides a noticeable lift without becoming too dramatic, making it incredibly versatile. C Curl suits a wide range of eye shapes and works beautifully for both Classic and Russian Volume lashes.

Best for:

• Most eye shapes
• Classic lashes
• Hybrid lashes
• Russian Volume
• Clients wanting a lifted but natural finish

CC Curl

CC Curl sits between C Curl and D Curl.

It provides extra lift while still looking soft and flattering. Many lash artists choose CC Curl for clients who want more glamour without the intensity of D Curl.

Best for:

• Hybrid lashes
• Russian Volume
• Almond eyes
• Slightly hooded eyes
• Clients wanting noticeable lift

D Curl

D Curl is a favourite for glamorous lash sets.

With a stronger curl, D Curl instantly opens the eyes and creates a fuller appearance. It's ideal for clients who wear makeup regularly or love bold lashes.

Best for:

• Glamorous lash sets
• Russian Volume
• Wispy styles
• Doll eye styling
• Clients wanting maximum lift

DD Curl

DD Curl is one of the most dramatic curls available.

It creates an intense lifted effect and is best suited to clients with strong natural lashes that can support the curl. DD Curl is often used for editorial styles or clients who love an ultra-glam finish.

Best for:

• Mega Volume
• Dramatic styling
• Photoshoots
• Clients wanting maximum curl

L Curl

L Curl has a straight base with a sharp upward lift.

The straight base provides excellent attachment to straight natural lashes, while the lifted tip creates the illusion of more open eyes. L Curl is especially popular for clients with hooded, deep-set or downward-pointing eyes.

Best for:

• Hooded eyes
• Monolid eyes
• Downturned eyes
• Straight natural lashes
• Lifted eyeliner effect

M Curl

M Curl has a gentle base before lifting dramatically.

It creates an eye-opening effect similar to L Curl but offers a softer transition. M Curl is ideal for clients wanting dramatic lift while maintaining excellent retention.

Best for:

• Hooded eyes
• Downturned eyes
• Clients with straight lashes
• Cat eye styling
• Modern textured lash sets

Mix Lash Curls for a Custom Look

Many experienced lash artists combine multiple curls within one lash set to achieve the perfect finish.

For example:

• Use J or B Curl in the inner corners for a softer transition.
• Blend C and CC Curl through the centre for added lift.
• Add D Curl to create a striking open-eye effect.
• Incorporate L or M Curl for clients with hooded or downward-facing eyes.

Mixing curls allows you to customise every set and flatter each client's unique eye shape.