By Michelle Bodean, Founder of Michelle Lashes-Brows-Beauty, Downers Grove, IL
Every June I have the same conversation about ten times a week. A client sits down, looks up at me, and says some version of: “My lashes were fine in March, but now they’re falling off by week two. What happened?”
What happened is summer in the Chicago suburbs.
I’ve been doing lashes for over a decade, starting in Europe and now here in Downers Grove since I opened the studio in 2022. I’ve watched the same retention pattern play out every year. Lashes that cruise through a dry February struggle once the humidity climbs and people start sweating at the bus stop. So let me walk you through what’s actually going on, how long you can realistically expect a set to last from June through August, and what you can do about it.
A full set of classic, hybrid, or volume extensions usually lasts three to four weeks before you need a fill. That’s the number I’d give any client, any time of year.
In a humid Chicago summer, the honest version is closer to two to three weeks for a lot of people. Not because the work is worse. Because the air is working against the adhesive, and your own skin is producing more oil than it does in winter. If you want the full breakdown of the typical lifespan, I wrote a separate guide on how long lash extensions usually last that covers the baseline before weather enters the picture.
Lash glue cures using moisture in the air. That sounds like humidity should help, and during application it sort of does. A little moisture speeds the bond. The problem is what happens after you leave the chair.
When the air is heavy with moisture for weeks at a time, the cured adhesive softens at the edges and gets more brittle over its life. Heat makes it worse. You walk to your car in 88-degree weather, you sweat along your lash line, you wipe your face, and each of those tiny moments chips away at the bond. None of it feels dramatic in the moment. Two weeks later you’ve got gaps.
The American Academy of Ophthalmology has written about how lash extensions interact with the eye and the skin around it, and the short version is that the area is sensitive and reacts to what you put on it and how you treat it. Summer just turns the dial up on all of that.
Here’s the part people don’t think about. Your face in July is not the same face you brought me in January.
You’re producing more oil. You’re sweating more. You might be reapplying sunscreen three times a day, swimming on weekends, and rinsing your face more often just to feel clean. Oil is the enemy of lash adhesive. It breaks down the bond from the base, which is exactly where the extension needs to stay locked to your natural lash.
I see this most with clients who have naturally oily skin to begin with. If that’s you, summer can be rough, and it’s worth reading what actually weakens eyelash extensions so you can spot your own habits in the list. A lot of the time, the fix is small.
I’m not going to tell you to avoid summer. You live here. You’re going to be outside. Instead, here’s what genuinely helps my clients hold a set longer between June and August.
Clean your lashes more than you think you need to. This is the single biggest one. Oil and sweat build up at the base, and a clean lash line holds extensions far better than a greasy one. I know it feels counterintuitive to scrub something you’re trying to protect, but it works, and I explain why in my piece on cleaning your lashes.
Book your fills a little tighter. If you normally come every four weeks, try three in summer. It keeps the set looking full and saves you from that “half my lashes are gone” feeling.
Stop touching your face. Easier said than done in the heat, I know. But every rub and wipe drags at the lashes.
Be smart about pools and lakes. Chlorine and lake water both stress the adhesive. Rinse with clean water afterward and let your lashes air dry instead of toweling them.
If you want the broader seasonal picture, including how winter and the transition months affect retention, I put together a full guide on seasonal lash care year-round. Summer is the hardest season, but it’s not the only one with quirks.
A bit, yes. Lighter sets with fewer points of contact sometimes hold up better for oily skin because there’s less surface for oil to break down. Heavier volume sets are gorgeous, but they ask more of your natural lashes and your aftercare. If you’re trying to decide what suits your lifestyle for the season, the difference between hybrid and Russian volume is a good place to start.
Honestly, the bigger factor is almost always aftercare and your natural oil, not the style. I’d rather put you in a set you’ll actually maintain than a dramatic one that’s gapping by your pool party.
Every face is different, and every summer routine is different. The client who swims four mornings a week needs a different plan than the one who works in air conditioning all day. That’s the whole reason a real consultation matters. I’d rather spend ten minutes upfront figuring out your life than have you frustrated two weeks later.
If I had to give you one number for a Chicago summer: plan for fills every two and a half to three weeks, and clean your lashes well, and you’ll be happy. Do nothing differently from winter, and you’ll probably be disappointed around week two and blaming the lashes.
The lashes are fine. It’s just July.
If you’re in Downers Grove, Naperville, or anywhere nearby and want a set built around how you actually live in summer, come in and let’s talk. I’ll be straight with you about what will and won’t hold up, and we’ll pick something you’ll love through August.
