- Poor Adhesion: Expired glue loses its effectiveness, leading to poor adhesion of the lashes. This not only compromises the look and durability of the extensions but can also result in a dissatisfying experience for the client.
Is it bad to use old lash glue? Yes, it is bad to use old lash glue - never do it! Using old or expired products on clients is simply not worth the risk. Aside from the inferior lash retention that will result, clients are more prone to reactions when the product's ingredients are out of date.
Yes, lash lift kits expire over time. The perming and setting solutions within these kits are formulated with active ingredients that degrade with exposure to air, light, and time. Once these ingredients break down, they lose their effectiveness and can potentially cause irritation or inconsistent results.
The cure is actually as simple as the answer. All you need to do is bring your adhesive back up to optimum temperature and then give it a good old fashioned shake (The LashBase Shaker is best). This will then turn your “stringy” adhesive back into the perfect, professional-performance adhesive that you were used to.
A freshly manufactured, unopened bottle of adhesive can last about 6 months. Once opened, a bottle of adhesive has a shelf life of about 4-6 weeks. If you notice your adhesive becoming stringy and thick, that's a good sign that you probably need a new bottle.
Eyelash Extensions: The lovely lashes themselves also have a shelf life. Typically, they last around 6 to 12 months when stored properly. Keep them in a cool, dry place, away from direct sunlight, and they'll stay in tip-top shape.
Too much adhesive
This is one of the most common but underrated issues with failed lash lifts. You need the adhesive to stick your clients' lashes to the shield, but what can happen if you are not careful is that too much adhesive can stop the solution from working on your clients' lashes.
“Being used so close to the mucous membrane of the eye area and then inserted back into the moist mascara tube, the wand essentially inoculates microbes in a perfect environment for growth,” says Pagán. Using mascara after it has expired could lead to eye infections.
When it comes to DUO lash glues, a general rule of thumb is that they can last up to 6 months unopened. However, this all depends on the type of adhesive and how well you store your lashes. DUO have designed their lash glues to last longer, while other makes require more frequent replacement.
Infections can occur when bacteria collect under the eyelash glue and on the false eyelash itself. If you store and reuse your false lashes, or drop your eyelash onto a surface before applying, there is a risk of harmful bacteria and dirt entering the eye.
Even with long-lasting adhesives, leaving eyelash glue on overnight is generally not recommended. Doing so can irritate the eyes or skin, weaken or damage natural lashes over time, and pose hygiene risks by trapping dirt, oil, and bacteria.
The lifespan of lash adhesive can vary depending on the formulation and the manufacturer's guidelines. Generally, an unopened bottle of lash glue can last between 6 to 9 months from the manufacturing date. However, the expiration date drops to 1-2 months once the glue is opened.
You'll end up wasting a lot of time and money that way. If the glue is bad, the end product likely will be too. Past the expiration date, the glue will not provide the appropriate bonding properties, and you will likely have to discard it. It's very important to make sure that you properly dispose of glue.
Well, the answer is about two things: efficacy and safety. In almost every case your face cleansing products are likely to be less effective after the expiry date. In some cases the date is there for a reason, and using expired face wash may cause a reaction to the ingredients that are no longer stable.
The good news is that false lashes, when used properly, won't damage your eyelashes at all! It's only when you over-apply glue or pull the lashes off aggressively, that some lashes may get caught and pulled out.
It's too easy to accidentally not follow aftercare - rubbing your eyes, sleeping on your face, working out, getting water on your lashes - these are all things that could potentially ruin any lash lift if done within 24 hours of the procedure.
Incorrect humidity and temperature during application
If the humidity is too low or too high, the glue will not dry as it should and the joints between the lashes will not last as long. Also beware of too much heat in the room, the glue will not cure properly.
Our tip: Do not over-buy!
As we mentioned earlier, lash extension glue can expire within 3-6 months even if it has never been opened. Once opened, you have 1 month to use the glue.
Yes, lash lift kits expire over time. The perming and setting solutions within these kits are formulated with active ingredients that degrade with exposure to air, light, and time. Once these ingredients break down, they lose their effectiveness and can potentially cause irritation or inconsistent results.
Heat also can cause the polymer to clump and gel. How will you know if your glue has gone bad? “If it pours, it's probably good,” says Behnke. If the glue has thickened, shake it vigorously by firmly tapping the bottle on a hard surface until the product is restored to its original form.
The oldest glue in the world is over 8,000 years old and comes from a cave near the Dead Sea. Ancient people used this glue, made from a mixture of animal bone and plant materials, to waterproof baskets and construct utensils.
Even though sealed, moisture will eventually seep in and ruin the mixture, causing it to “self-glue.” You can extend the shelf life to the outer limit of 12 months if you store unopened containers in a cool, dark space, between 50 and 70 degrees Fahrenheit to keep condensation from forming.