LASH CURLS AND LENGTHS EXPLAINED
Choosing the right curl and length can completely change the appearance of a lash set. Even when two clients receive the same lash map, the results may look different because of their natural lash direction, eye shape, and eyelid space.
Curl and length should always be selected together. A stronger curl rises more sharply, which can make it appear shorter from the front than a softer curl in the same length.
Understanding Lash Curls
The curl of the lashes are organized by letters! the most common curls from least curly to most is C, CC, D, DD! C is the ‘flattest’ curl and DD is the ‘tightest’. There are a few other letters we would consider ‘specialty’ curls.
Not all lash trays have the same curls! The ‘C’ curl of a cashmere mink tray will look less curlier than soft silk’s ‘C’ curl since cashmere has the flattest curl and soft silk has the tightest.
C Curl
C curl provides a soft, natural-looking lift. Perfect for classic sets, natural volume, and clients with upward-growing or naturally curled lashes.
CC Curl
CC Curl offers more lift than C curl. Versatile choice for volume, wispy, kitten-eye, and open-eye sets.
D Curl
D curl creates a stronger more dramatic lift. It can help open the eyes and work well for glamorous volume sets, defined spikes, and clients with straight or slightly downward-growing lashes
L and M Curls
L and M curls have straighter bases followed by a noticeable upward lift. These specialty curls are commonly used for fox-eye, eyeliner effect, and lifted outer-corner styles
Understanding Lash Lengths
Lash extension lengths are measured in millimeters from the base to the tip.
- 5-8mm: Inner corners, short natural lashes, and smooth transitions
- 9-12mm: Natural, classic, and soft-volume sets
- 13-15mm: Wispy spikes, cat-eye maps, and more dramatic styles
- 17mm and above: Bold or editorial designs for clients whose natural lashes can safely support them.
Shorter lengths are especially important around the inner corners. Beginning with lashes that are too long can make the set appear heavy or uncomfortable.
Where you place the longest length affects the final shape:
- Placing it near the center creates an open-eye or doll-eye effect.
- Placing it near the brow arch creates a kitten-eye shape.
- Moving it toward the outer third elongates the eye.
- Using the longest lashes at the extreme outer corner can make downturned eyes appear heavier.
Avoid choosing a curl based only on a reference photo. The model in the photo may have a completely different eye shape or natural-lash direction. Remember to evaluate the stronger of the client’s natural lashes before using the longest length.
There is no single curl or length that works for every client. The best combination should complement the natural lashes, enhance the eye shape, and support the intended lash map.
By evaluating growth direction, selecting a compatible curl, and using gradual length transitions, lash artists can create sets that are flattering, customized, and safe for the natural lashes!