Based on the search results, here is the information about DD curl lashes:

• DD curl lashes are a type of eyelash extension that has a strong curl, more than D curl lashes.
• They are made of synthetic mink, which is soft and true to curl.
• DD curl lashes are available in different thicknesses, such as 0.15mm and 0.20mm.
• They can be purchased in trays that contain multiple rows of lashes.
• DD curl lashes are used to create a super curly look.
• The main ingredient in eyelash extension glue is cyanoacrylate.

Positive aspects:

• DD curl lashes are soft and true to curl.
• They can be used to create a super curly look.

Negative aspects:

• None of the search results mention any negative aspects of DD curl lashes.

Ingredients or materials:

• DD curl lashes are made of synthetic mink.
• Eyelash extension glue contains cyanoacrylate.