Mega volume eyelash extensions are a type of semi-permanent eyelash extension that involve the application of multiple, very fine synthetic lashes, called "fans," to each natural lash. The fans used in mega volume are much thinner and have more lashes than the volume fans, resulting in an even more dramatic and voluminous look. These type of extensions use a similar technique as volume extension, called "mega volume fanning", where multiple lashes are fanned out and applied to a single natural lash, creating a very dramatic and fluffy look. This technique is usually recommended for people who would like a very dramatic and bold look.