Lash Affair User Guide: Taking Care of Your New Lash Extensions

Congratulations on your new lash extensions! Whether this is your first set or you're a longtime lash lover, proper aftercare is the single biggest factor in how long your extensions last and how healthy your natural lashes stay. As the founder of Lash Affair, I've been educating artists and clients on aftercare since 2014, and I can tell you that the clients who follow these guidelines consistently get the best retention and the healthiest natural lashes.

The First 24 to 48 Hours: The Critical Window

The lash adhesive needs time to fully cure after your appointment. During this window, avoid getting your lashes wet — no showers hitting your face directly, no swimming, no steam rooms or saunas. Avoid crying if you can help it, and skip the gym for a day. Heat and moisture can weaken the adhesive bond before it's fully set, which leads to premature fallout. This is the most important aftercare rule, and skipping it is the number one reason clients experience poor retention in the first week.

Daily Cleansing Is Non-Negotiable

This is the aftercare step that surprises most new clients: you absolutely must clean your lash extensions every single day. Many people think avoiding water will help their lashes last longer, but the opposite is true. Oil, dead skin cells, makeup residue, and bacteria accumulate along your lash line daily. If left uncleaned, this buildup weakens the adhesive bond, can cause eye infections, and leads to a condition called blepharitis — inflamed, itchy eyelids. Use a dedicated lash-safe cleanser and a soft cleansing brush. Gently work the cleanser along your lash line, rinse with water, and pat dry. It takes less than a minute and makes a dramatic difference in retention.

Products to Avoid Near Your Eyes

Oil is the enemy of lash adhesive. Avoid oil-based cleansers, moisturizers, sunscreens, and makeup removers anywhere near your eye area. Check ingredient labels for common culprits like coconut oil, mineral oil, argan oil, and dimethicone. Switch to oil-free alternatives for your entire eye area routine. Also avoid waterproof mascara — the solvents needed to remove it can dissolve lash adhesive. If you want to wear mascara on your extensions (though most clients find they don't need it), use only water-based, extension-safe formulas and apply them to the tips only, never the base.

How to Sleep with Lash Extensions

Your sleeping position matters more than you might think. Sleeping face-down presses your lashes against your pillow, bending and crushing them throughout the night. This causes extensions to twist, fall out prematurely, and lose their curl. The best position is on your back. If you're a side sleeper, try to alternate sides and consider a silk or satin pillowcase — the smooth surface creates less friction than cotton. Some clients even use a contoured sleep mask that creates space around the eyes to protect their lashes.

Brushing and Maintenance Between Fills

Gently brush your lashes with a clean spoolie each morning after your cleansing routine. This keeps them separated, properly aligned, and looking their best. Always brush from the middle to the tips — never from the base, which can loosen the adhesive bond. Keep a spoolie in your purse for touch-ups throughout the day. If you notice a lash that's twisted or out of place, a quick brush usually fixes it. Avoid pulling, tugging, or playing with your extensions, as this habit is one of the fastest ways to thin out your set and damage your natural lashes.

When to Schedule Your Fills

Most clients need fills every two to three weeks to maintain a consistently full look. Your natural lashes shed on a continuous cycle, taking extensions with them — this is completely normal. Waiting too long between fills means your artist has to spend more time and may need to charge for a full set rather than a fill. Set up a recurring appointment schedule that works for your budget and lifestyle, and try to stick to it. Consistent fills are more cost-effective than letting your set grow out and starting over.

What to Do If Something Feels Wrong

If you experience persistent redness, swelling, itching, or discomfort after the initial 24-hour period, contact your lash artist. These could be signs of an allergic reaction to the adhesive or an issue with the application. Don't try to remove extensions yourself — pulling them off can rip out your natural lashes. Professional removal is quick, painless, and preserves your natural lashes. Your artist can assess the situation and recommend next steps, whether that's switching to a sensitive-formula adhesive or adjusting their technique using gentler extension options.

Frequently Asked Questions

Can I wear eye makeup with lash extensions?

Yes, but with some modifications. Skip mascara if possible — most clients find their extensions provide enough volume and length. If you do wear eye makeup, use oil-free products and be very gentle with removal. Avoid liquid eyeliner on your lash line as it can interfere with the adhesive. Eyeshadow is fine as long as you use oil-free formulas and avoid heavy fallout that can get trapped in your extensions.

Is it normal to lose some extensions in the first few days?

Losing a few extensions in the first couple of days can happen and isn't necessarily cause for concern. However, if you lose more than about ten extensions per eye in the first week, contact your artist. Significant early loss usually indicates an issue with adhesive cure, preparation, or environmental conditions during application.

Can I use a lash curler with extensions?

No — never use a mechanical lash curler on extensions. The clamp can crack and break both the extensions and your natural lashes. If your extensions are losing their curl prematurely, talk to your artist about switching to a curlier extension style or a different curl type. Quality extensions from a reputable brand should maintain their curl throughout the wear cycle.