Lash Lift Processing Time: What It Depends On

Lash lifting is one of the most in-demand procedures in the modern beauty industry. When performed correctly, it creates naturally lifted, healthy-looking lashes — no curling tool or extensions needed. However, the success of the treatment largely depends on one critical factor: the correct processing time for each solution used during the procedure.

At MONLIS School in Munich, one of Germany’s top beauty academies, future lash stylists are taught how to adjust the timing individually — depending on lash type, product formulation, and environmental conditions. Incorrect timing can ruin the results or, worse, damage the natural lashes.

Why Is Processing Time So Important?

Lash lift lotions work by temporarily softening the lash structure to allow it to be reshaped. If the product is removed too early, the lashes will not hold their new shape, resulting in minimal lift or short-lasting results. If left on too long, the solution can overprocess the lashes, leading to dryness, breakage, or lash loss.

Accurate processing time ensures:

• A uniform, long-lasting curl

• Healthy lash structure

• Client satisfaction

• Reduced risk of damage

What Factors Influence Processing Time?

1. Thickness and Condition of Natural Lashes

This is the most important factor:

• Fine, soft lashes require shorter processing times (5–8 minutes)

• Thick, coarse lashes need longer exposure (10–14 minutes)

• Damaged or porous lashes must be treated with extra caution

A detailed lash analysis is the first step in every professional treatment.

2. Product Formula and Brand Guidelines

Every lash lift brand uses a different formula. Therefore, instructions vary:

• Cream-based formulas are gentler and usually require more time

• Gel-based or stronger solutions act faster

• Two-step systems often have different timing for each lotion

At MONLIS School, students work with various products and learn to follow brand-specific timing recommendations accurately.

3. Room Temperature and Humidity

Environmental conditions impact chemical processing:

• High temperature accelerates the process

• Dry air slows it down

• The ideal environment is approx. 22–24 °C and 40–60% humidity

A well-prepared workspace takes these variables into account.

4. Product Age and Storage Conditions

• Expired or improperly stored products may lose effectiveness, leading to longer or inconsistent processing

• Fresh, well-stored products perform within the expected time frame

That’s why proper storage and product rotation are also emphasized during training at MONLIS.

What Can Go Wrong with Incorrect Timing?

Too short:

• Weak or no lift

• Short-lasting effect

• Uneven curl between lashes

Too long:

• Lash structure breaks down

• Brittle, dehydrated lashes

• In severe cases: lash fallout

How Do You Learn to Time It Right?

At MONLIS School in Munich, lash lift training goes beyond checklists. The program includes:

• Lash type assessment techniques

• Hands-on work with different lash types

• Working with multiple brands and lotion types

• Special case handling (damaged or mixed lashes)

• Controlling salon climate conditions

• Tracking and documenting every procedure

This in-depth training helps future professionals deliver consistently safe and beautiful results.

Processing time in lash lifting is not one-size-fits-all — it must be tailored to each client. Ignoring this can result in unsatisfactory outcomes or even damage to the natural lashes.

At MONLIS School in Munich, students gain the technical skills and experience to lift lashes effectively and responsibly — while always protecting the client’s natural beauty.