Fine, I'm done gatekeeping. Underlashing is the ultimate secret to my most natural looking XXL fluttery eyelashes. I like the idea of falsies, but sometimes I think that they can look a little too bold or too loud on me, but once I found this underlashing trick, I haven’t looked back.
Underlash Technology™ is not new but has become very popular the last few years. Lashify, a American underlash brand were actually the inventors of this technology, they also currently hold 316 patents and 46 registered trademarks so I went straight to the experts and asked Jill Medicis, a LashifyPro® Senior Educator on everything you need to know about this epic eyelash technique that might just convert you for ever.
What is underlashing?
As the name suggests, underlashing is less about giving you colossal lash effect, but more about enhancing your eyes naturally. The technique is simple and involves applying a razor-thin false lash (either styled as a strip or cut up as clusters), underneath your natural ones as opposed to the traditional way which would usually go on top. This will in turn give you beautifully subtle and almost undetectable, wispy lashes in a matter of seconds.
Jill Medicis tells me: “Our patented Underlash technology is when the Gossamer® Lash is applied to the underside of the natural lash rather than the top to create a seamless, undetectable finish. By applying to the underside of the lash you no longer have to worry about any additional makeup being applied to cover any strips or bands. This also allows you to achieve the most natural lash look.”
How to do the underlash?
To pull it off seamlessly, you'll need the right products. Most importantly a gentle underlash glue specifically designed to be eye-friendly. The good news is that underlashing is super easy to do at home for yourself. Lashify have also created an extra strength bonding glue that can allow underlashes to last upwards of seven days.
To apply the Lashify underlashes Jill says: “Lashify Gossamer® Lashes are applied to the underlash by applying our flexible, damage-free bond to the natural lash like you would mascara then applying the Gossamer Lashes by looking down into a mirror. All of our Gossamer Lashes are made of Korean PBT Silk, making them vegan and cruelty-free as well as virtually weightless so this application will cause zero damage to the natural lashes.”
Seems straight forward? Here is an universal step-by-step guide on how to do underlashing from home:
- Start with clean, dry lashes.
- Apply the underlash glue like you would your mascara on the lashes you are planning to cover with the falsies and let it get a little tacky.
- Using a mirror and your trusty applicator tool, position the underlashes (wether a strip or clusters) beneath your natural ones. Begin at the outer corner with the largest ones and work your way inwards.
- Gently press the underlashes in place, making sure they're secure.
- Allow the glue to dry completely, which usually takes a few minutes.
- Once dry, you can apply mascara to blend your natural and false lashes, creating a seamless finish
All in all, this should take you a couple of minutes, but remember, practice makes perfect, so don't worry if your first try isn't quick and seamless. Do be warned, once you nail it, you might not want to ever go back to regular false lashes.
What are the benefits of underlashing?
Underlashing can really elevate your eye makeup look instantly. The magic lies on the fact that when applied correctly, they also become virtually invisible on the eyes, seamlessly blending with your natural lashes, concealing the lash line of your falsies. Unlike traditional false lashes, underlashes let you keep your natural eye shape which could otherwise be compromised by adding a thick band on the eyeline above your natural lashes.
You can also trust them to stay firmly in place as each lash strand is securely glued to the cluster strands. Bonus points for the fact that they can also still be used multiple times, with some even specifically designed to stay on the lashes for days at a time, as if they were lash extensions. However, if you want to remove them, they're also easy to do, using an oil based makeup remover.
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Is underlashing safe?
Underlashing is safe as long as you are using glue that has been specifically designed for underlash application. When referencing Lashify, Jill says: “Yes! Underlash application with Lashify is safe and is designed to preserve the natural lash. All of our bonds are flexible which means they move freely with the natural lash while you wear them. Our bonds are lab tested and ophthalmologist approved. They're also free from any harsh chemicals so the system was made for even the most sensitive eye.”
Jill adds: “Our patented Fuse Control® Wand is also designed to preserve the natural lash using a horizontal clamp force to again ensure there is zero natural lash damage and even our Gossamer® Lashes were designed to be virtually weightless so they will not cause any damage to the natural lash as well.”

What precautions should you take before underlashing:
Before you get started, let's talk safety first:
Quality is key: Opt for top-notch underlash glue and lashes that won't irritate your eyes. Lashify are great, but there are other brands who have created other underlash strips and clusters you could try like Kiss, Eylure and Sweed Lashes. Look for those designed for sensitive skin.
Patch test: Before going all-in, test a tiny bit of the underlash glue on your wrist or behind your ear to make sure it doesn't trigger any allergies.
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Good prep: Cleanse your face and lashes thoroughly to get rid of makeup, oils, and debris. This sets the stage for better adhesion.
Tools of the trade: Grab tweezers or a lash applicator to handle the underlashes. It's easier and safer than using your fingers.
Measure and trim: Match the length of your underlashes to your natural lash line if you're using strip underlashes, and then trim them accordingly. If you're using clusters star from the outer corner with the longest length and work your way in as far as you like – half way usually does the trick for a natural effect.
Try these underlashes:
I obviously drop beauty game for a living but this one you'll want to actually thank me for.
For more from Glamour UK Beauty Writer Shei Mamona, follow her on Instagram @sheimamona








