Crafted specifically for low-humidity salon climates, Flexie is a premium, fast-curing eyelash extension adhesive. It features an exclusive velvety viscosity for flawless lash adhesive control, and its innovative formula maintains high flexibility post-cure to deliver a remarkably strong, comfortable hold.
| Experience Level | Advanced |
| Strength | Extremely Strong |
| Drying time | 1 second |
| Room humidity | 40-70% |
| Room temperature | 64.4 - 71.6°F |
Viscosity Thin, medium, syrup like | syrup like |
Who is Flexie Glue for?
Formulated exclusively for high-speed, advanced professional lash artists. If you require a rapid-drying professional eyelash glue that accommodates the natural shifting of natural lashes, Flexie is your ultimate choice. (Please note: This lash adhesive is not recommended for beginner or intermediate artists).
What is Flexie Glue?
Recognized for its distinct, velvety texture, Flexie is an elite eyelash extensions adhesive. It cures in an ultra-fast 1 second and is masterfully designed for both Classic lashes and Russian Volume lashes. In contrast to stiff formulas, Flexie retains its flexibility after curing, drastically lowering the risk of extensions snapping or popping off.
When Should You Use Flexie Glue?
Turn to this professional lash adhesive whenever you face challenging low-humidity climates. Flexie is expertly calibrated to function flawlessly in rooms with 40% - 70% humidity and temperatures ranging from 64°F - 72°F (18°C - 22°C).
Why Choose Flexie Glue?
Brittle adhesive bonds are prone to breaking, while flexible bonds endure. Flexie grants you complete control over your adhesive bead, and its built-in elasticity ensures outstanding lash retention. It easily adapts to clients who naturally rub their eyes or sleep on their faces, making it an absolute game-changer for difficult eyelash retention scenarios.
How to maximize eyelash extension retention using Flexie Lash Glue?
When your salon environment fluctuates, your retention takes a hit. If volume fans are popping off early or the bond is weak, consult this professional checklist:
Struggling with your attachment technique? Consider booking a 1-on-1 mentoring session with a London Lash Approved Trainer.
(Friendly reminder: For professional use only. We strongly suggest purchasing a sample size before committing to the full bottle. During Black Friday sales, there is a strict maximum limit of 20 bottles per order. For bulk purchasing inquiries, please reach out to info@londonlashpro.com).
Which lash adhesive dries the fastest?
Our quickest-drying adhesives include Power Bond, Royal Bond, and Swift Bond, all designed to cure within 0.5–1 second when used in the correct conditions.
Keep in mind: higher humidity speeds up curing time, while lower humidity slows it down.
These adhesives are extremely fast and are best suited for advanced lash artists. Using a glue that cures too quickly for your speed can negatively impact retention.
How do I choose the right lash glue?
The best eyelash extension adhesive for you depends on your experience level, room conditions, and working speed.
Beginner or intermediate artists: opt for slower adhesives like Lady Bond or Satin Bond for better control
Advanced artists: faster adhesives may help you increase efficiency
To choose accurately, you’ll need to know:
Using a hygrometer is highly recommended to monitor your environment and maintain consistency.
For a full breakdown, explore our lash glue comparison guide or reach out to our support team at info@londonlashpro.com.
Which lash glue is best for sensitive clients?
All professional lash adhesives contain cyanoacrylate, the ingredient responsible for bonding. Most allergic reactions are triggered by adhesive fumes, not the liquid itself.
If a client has previously had an allergic reaction, it’s very likely they will react again. In these cases, lash extensions are not recommended.
For clients who experience mild sensitivity (not a true allergy), you can:
Always follow proper consultation procedures and avoid working on clients with contraindications.
Why is my lash glue drying too slowly?
Slow curing is usually caused by low humidity or incorrect room temperature.
To speed up your adhesive:
Increase humidity levels in your workspace
Adjust room temperature within your glue’s recommended range
Use Booster on the lash strip to accelerate curing
Helpful ways to increase humidity:
If your speed has improved over time, your adhesive may simply be too slow for your current skill level - switching to a faster glue could improve your results.
Why has my lash glue become thick or stringy?
Adhesive consistency changes are usually caused by exposure to air, moisture, or improper storage.
To prevent this:
Proper care will help maintain optimal performance and retention.
Why are my volume fans closing?
If your fans close after dipping, your adhesive is likely too slow for your working speed.
To fix this:
Increase humidity and/or temperature
Use Booster on the lash strip (not on natural lashes)
Check that you’re not picking up too much adhesive. Balanced conditions and correct glue amount are key to maintaining open, symmetrical fans.
How do I clean my glue nozzle properly?
After every use:
Wipe the nozzle with a lint-free glue wipe
Store the bottle upright
Gently squeeze out any residue before closing
When shaking manually:
Remove the cap
Cover the nozzle with a wipe to prevent clogging
Important: Never use cotton pads, tissues, or fibrous materials. These can react with cyanoacrylate and cause heat buildup or safety risks.
What is the shelf life of lash adhesive?
Unopened: Up to 6 months from production date
Opened: Best used within 4 weeks (maximum 8 weeks)
For sample sizes (2ml), use within 5 days of opening.
Pro tip: label your bottle with the opening date to track freshness.
What should I do if my glue nozzle is blocked?
If your nozzle becomes clogged:
Replace it with a spare nozzle
Use a Glue Rescue Kit if the cap is stuck
A nozzle opener tool can make replacement easier
To avoid blockages:
Clean the nozzle after every use
Store glue correctly
Avoid squeezing the bottle when dispensing
Why is there white residue on my glue bottle?
White residue is caused by shock polymerization, which happens when adhesive reacts with moisture.
To prevent this, store glue in an airtight container, keep it away from humidity and direct sunlight and ensure the cap is tightly sealed after each use
Why does my glue look clear instead of black?
Adhesives must be shaken thoroughly before use. Shake for 1–2 minutes (or use a glue shaker), this ensures all ingredients are properly mixed
Only Crystal Bond is designed to be clear. All other adhesives should appear fully black when ready to use.
How should I store lash glue correctly?
Before opening: Keep sealed in original packaging. Can be stored in the refrigerator to extend shelf life
After opening: Store at room temperature. Use an airtight container and keep away from heat, sunlight, and humidity.
Always store upright. Proper storage is essential for maintaining adhesive performance.
How do I remove lash adhesive safely?
Eyelash extensions should always be removed by a trained professional. Never pull or force extensions off, as this can damage natural lashes.
For safe removal: Use a professional remover such as Cream Remover or Gel Remover. Work in small sections and ensure eyes are properly protected.
Following correct removal techniques ensures a safe and comfortable experience for your client.



