What's the difference between C curl and D curl?

Not sure which curl to choose? Photo below to help visualize. 

I'm going to help break it down for you. 

C curl:

• More natural curl.
• Best if you have monolids. 
• Great for people who are starting out. 
• If you find you want it more curly, you can always use a lash curler to create the D curl effect. 

D curl:

• Curls back more to your eyelids.
• Opens your eyes up more. 
• Good if you wear glasses. 
• Lengths do look shorter on the eye because of the deeper curl. 
• Gives you a "lash extension" look.