Properly applied eyelash extensions can be used indefinitely. As long as the applied eyelash extension has the correct length, weight and thickness for natural lashes, there is absolutely no reason for them to get damaged. In general, most eyelash extensions that are applied in the salon last between two and four weeks. This takes into account that some lashes will fall out prematurely, especially in the first few days.
One of my clients arrived at the hairdresser a couple of days before she booked to remove her eyelash extensions, worried that she wasn't doing the right thing by taking them off and wanted a second opinion. However, the answer varies greatly because it depends on the experience of the eyelash technician, the adhesive you use, and most importantly, how you care for them. Simply put, eyelash extensions are tiny synthetic fibers that are carefully attached to the base of each natural eyelash. The last thing you want is to get your natural lashes out prematurely while you're trying to remove your eyelash extensions.
There are many eyelash growth serums on the market and can be purchased online or at stores such as Boots and some department stores. One of the scariest things about eyelash extensions is that the process is not regulated in some states, as is the case in Alabama, Maryland, Connecticut, Delaware, Idaho and Wisconsin. When applied correctly, these tiny lashes make a big difference, making short, sparse lashes become full, long and luscious. The result was great (I woke up with bangs full of eyelashes and went to work without putting on any makeup), but after a week I started to wake up with my pillowcase covered with eyelashes, both extensions and my own natural eyelashes.
While damage to natural lashes certainly isn't ideal (nor is it sustainable over time), any breakage or fall should resolve on its own within one to three months, as part of a typical eyelash growth cycle, more on this below. Individual eyelash extensions are applied to each of the individual natural lashes (one extension per natural eyelash) with a semi-permanent glue. Unlike false eyelashes, in which the strip or individual lashes are applied to the skin, eyelash extensions are attached directly to the eyelash itself. Next, two eyelash experts, a dermatologist and a plastic surgeon discuss everything you need to know about eyelash extensions, from finding the right eyelash artist to costs, risks and everything in between.
But with that said, you can do everything right and still find that eyelash extensions cause your natural lashes to break. When it comes to safety, dermatologists compare eyelash extensions to acrylic nails; they're not necessarily good for you, but they're not likely to cause serious health problems, so you may decide that the aesthetics of the extensions outweigh potential side effects (which usually include irritation, infection, and allergic reactions).