Irregularities in Adhesive // Don't Lose Your Clients Over It

If your clients aren't getting the retention they expect, your first instinct might be to blame the adhesive. I get it, I've been running Lash Affair since 2014, and adhesive troubleshooting is one of the most common topics artists ask me about. But in my experience, most retention issues aren't actually caused by a "bad" adhesive, they're caused by environmental or technique factors that are completely within your control. For a full overview of how to evaluate and select professional adhesive, see our complete guide to lash extension glue. Let me walk you through the most common culprits and how to fix them.

1. Humidity: The Silent Retention Killer

One of the most overlooked factors in lash adhesive performance is humidity. Every adhesive has an optimal humidity range, and if you're not measuring it, you're guessing. Here's what you need to know:

• Cyanoacrylate adhesives cure with moisture: Your lash adhesive needs humidity in the air to polymerize (harden). Too little humidity means slow curing and weak bonds; too much means the adhesive cures before you can place the extension
• Invest in a digital hygrometer: These are inexpensive and should be on every lash station. Check the humidity before every appointment, not just occasionally
• Know your adhesive's range: Most professional lash adhesives perform best between 40 to 60% humidity, but check your specific product's specifications
• Adjust your environment: Use a humidifier in dry conditions (winter, air conditioning) or a dehumidifier when it's too humid. A small nano mister near your workspace can also help
• Seasonal changes matter: Your adhesive may perform differently in summer versus winter simply because of humidity shifts. Be prepared to adjust your routine or switch to a different adhesive formula seasonally

2. Improper Adhesive Storage

How you store your adhesive between appointments directly impacts its performance. I've seen so many artists struggle with retention issues that trace back to storage mistakes:

• Store upright in an airtight container: Exposure to air causes adhesive to begin curing inside the bottle. An airtight storage container protects your investment and extends shelf life
• Keep away from heat and sunlight: Store in a cool, dark place. Heat accelerates the breakdown of cyanoacrylate, making your adhesive thick and stringy before its time
• Never refrigerate: Despite the common myth, refrigerating adhesive introduces condensation when you remove it, which degrades the formula
• Replace regularly: Once opened, most adhesives should be replaced every 4 to 6 weeks, regardless of how much is left in the bottle. An old adhesive that's technically "still good" often isn't performing at its best
• Shake thoroughly before each use: The ingredients in adhesive can settle. Shake for at least 30 to 60 seconds before dispensing to ensure a consistent formula

3. Client Prep Makes or Breaks Retention

Even the best adhesive in perfect conditions won't hold if the natural lashes aren't properly prepped. This is non-negotiable:

• Cleanse thoroughly: Use a professional lash cleanser to remove all oils, makeup residue, and debris from the natural lashes before you begin
• Use a lash primer: A quality primer removes any remaining oils and creates an optimal bonding surface for the adhesive. This step alone can dramatically improve retention
• Ensure lashes are completely dry: Any moisture on the natural lashes before application will cause the adhesive to cure prematurely, resulting in a weak bond
• Educate your clients: Ask clients to arrive with clean, makeup-free lashes. If they arrive with mascara or heavy eye makeup, factor in extra prep time

Handling Retention Complaints Professionally

Even when you do everything right, you'll occasionally have a client who isn't happy with their retention. How you handle this situation can determine whether they come back or find a new artist:

• Listen without being defensive: Let the client explain what happened. They may reveal lifestyle factors (swimming, sauna, sleeping face-down) that explain the issue
• Review their aftercare: Gently ask about their cleaning routine, products they use near their eyes, and sleeping habits. Many retention issues stem from aftercare, not application
• Offer a solution: Whether it's a complimentary touch-up, a different adhesive trial, or adjusted aftercare guidance, showing willingness to make it right builds loyalty
• Document what you learn: Keep notes in each client's file about what adhesive you used, the humidity that day, and any issues. This helps you identify patterns over time

When It Actually Is the Adhesive

While most retention issues have other causes, sometimes the adhesive itself is the problem. Signs that your adhesive may genuinely need replacing include thick or stringy consistency that doesn't improve with shaking, a bottle that's been open longer than 6 weeks, adhesive that was exposed to extreme temperatures during shipping or storage, or noticeably increased fumes compared to a fresh bottle. When in doubt, open a fresh bottle and compare. The cost of a new adhesive is always less than the cost of losing a client.

Frequently Asked Questions

How often should I replace my lash adhesive drop during appointments?

Replace your adhesive drop every 15 to 20 minutes during application. As the drop sits exposed to air, it begins to cure and becomes less effective. Using a fresh drop regularly ensures consistent bond strength throughout the entire appointment.

Can I use the same adhesive year-round?

Many artists do, but some find better results by having two adhesives: one formulated for lower humidity conditions and one for higher humidity. This allows you to maintain consistent performance regardless of seasonal changes in your workspace environment.

What should I do if my adhesive arrives and seems different from my last bottle?

Minor batch-to-batch variations are normal in cyanoacrylate adhesives. If the consistency, dry time, or fume level seems significantly different, contact the manufacturer. Always test a new bottle on a practice lash strip before using it on a client to calibrate your timing.