Loving Your Adhesive in the Summer

Summer is the season that tests every lash artist's relationship with their adhesive. Rising temperatures and humidity levels can completely change how your lash adhesive performs, and if you're not prepared, you'll see retention drop and frustration rise. I'm Jenelle Paris, founder of Lash Affair, and after more than a decade of lashing through Arizona summers and training artists across every climate zone, I've learned exactly how to keep adhesive performing at its best when the heat turns up.

Why Summer Changes Everything About Your Adhesive

Lash adhesives are cyanoacrylate-based, which means they cure by reacting with moisture in the air. When summer humidity spikes, your adhesive cures faster — sometimes too fast. What worked perfectly in spring at 45% humidity might become nearly unworkable at 75% humidity in July. The adhesive can start curing before you even place the extension, creating a weak bond that leads to poor retention. Understanding this chemistry is the first step to maintaining consistent results year-round.

Monitor Your Room Environment

A hygrometer and thermometer in your lash room are non-negotiable, especially in summer. Your ideal working conditions are 68–72°F (20–22°C) with 45–55% relative humidity. When summer pushes those numbers up, you need to adjust. A dehumidifier is one of the best investments you can make for your lash studio — it gives you control over your environment rather than letting the weather dictate your retention rates.

Adjust Your Adhesive Choice

Many artists use different adhesives for different seasons, and that's a smart approach. In summer, consider switching to a slower-drying formula that gives you more working time in high humidity. Our adhesive collection includes options with varying dry times for this exact reason. A 1–2 second adhesive that's perfect in winter might need to be swapped for a 2–3 second version when humidity climbs. Don't fight the environment — adapt to it.

Adhesive Storage in Hot Weather

Heat degrades adhesive faster than almost anything else. Never store your adhesive in a car, near a window, or anywhere that gets direct sunlight. Keep unopened bottles in a cool, dark, dry place — a cabinet away from the window is ideal. Once opened, use the adhesive within 4–6 weeks and keep the nozzle clean. In summer, that shelf life may shorten because even indoor temperatures run warmer. If your adhesive becomes stringy, thick, or inconsistent, replace it rather than trying to make it work.

Refresh Your Adhesive Drop More Frequently

In high humidity, your adhesive drop on the jade stone or crystal tile cures from the outside in, forming a skin that makes it less effective. Instead of refreshing every 20–25 minutes like you might in cooler months, switch to every 10–15 minutes in summer. Smaller, more frequent drops keep the adhesive fresh and ensure every extension gets a quality bond. This one habit alone can transform your summer retention.

Client Aftercare Is Extra Important in Summer

Your clients' behavior in summer also affects retention. Swimming, sweating, sunscreen, and outdoor activities all stress lash bonds. Provide clear aftercare instructions that address summer-specific challenges: avoid swimming for the first 24–48 hours, cleanse lashes after sweating, use oil-free sunscreen around the eye area, and continue daily lash cleansing. The better your clients care for their lashes in summer, the more they'll appreciate the quality of your work.

Frequently Asked Questions

My adhesive is curing too fast in summer. What should I do?

First, check your room humidity with a hygrometer. If it's above 60%, use a dehumidifier to bring it down to the 45–55% range. If you can't control the room, switch to a slower-drying adhesive formula. Also make sure you're refreshing your adhesive drop every 10–15 minutes so you're not working with partially cured glue.

Should I refrigerate my lash adhesive?

I don't recommend refrigerating lash adhesive. The temperature fluctuation when you take it in and out causes condensation inside the bottle, which introduces moisture and degrades the formula. Store it in a cool, dark cabinet at consistent room temperature instead.

How do I know when my adhesive has gone bad?

Signs include thicker-than-normal consistency, stringiness when you dip, a strong or unusual smell, or noticeably weaker retention despite good technique. If you're questioning it, replace it. A fresh bottle of adhesive costs far less than the appointments you'll lose from poor retention.