The Ultimate Retention Guide
The Ultimate Retention Guide
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The only course you’ll ever need to finally master lash retention — and build a consistent, stable clientele who trusts your work.
ARE YOU READY TO…
• Master the #1 secret to building a loyal, fully-booked lash clientele?
• Become a retention expert so you can confidently raise your prices — and attract clients who respect your time?
• Stop guessing, stop wasting money on “holy grail” glues, and finally understand the science behind long-lasting lashes?
If yes… keep reading.

Even the prettiest lash sets lose their value if they don’t last. That’s why retention is the skill that separates “average” lash artists from booked-and-busy CEOs.
WHY YOU'RE STRUGGLING
DOES THIS SOUND FAMILIAR?
Problem 1:
Your clients come in with less than 40% retention at 2–3 weeks…
but you’re scared to upcharge them for full sets.
Problem 2:
Your glue feels unpredictable — sliding, not drying, or drying too fast for no reason.
Problem 3:
You want to charge premium prices…
but you don’t feel 100% confident in your work yet.
If any of these sound like you — this course was made for you.
THE REAL REASON RETENTION FAILS
HERE’S THE TRUTH…
No matter how beautiful a set is, it loses value the second the lashes don’t last.
That’s why I started studying retention like a science — literally.
I spent a year researching glue ingredients, experimenting with humidity/temperature control, tracking environmental changes, studying pH, and making notes on every shift in my adhesive.
And after piecing it all together…
everything finally clicked.
I knew exactly how to control my glue in ANY scenario — and my retention transformed overnight.
That’s when I realized… I had to help other artists do the same.
YOUR 90-DAY TRANSFORMATION
IMAGINE 90 DAYS FROM NOW…
✔️ You no longer dread that “Hey girl… my lashes all fell off” text
✔️ Your clients walk in with 60–80% retention at 3 weeks
✔️ You achieve 4–6+ weeks retention consistently
✔️ You feel confident raising your prices (and clients happily pay)
✔️ No more “bad glue days”
✔️ Your infills are fast, easy, and stress-free
✔️ Clients start referring you because they trust your retention
You KNOW you have the potential — but something in retention keeps holding you back.
You just need the missing pieces.
MY STORY
I started lashing in 2018 with zero knowledge of what “retention” even meant. I was only taught classics. Volume, styling, and retention were things I figured out alone through trial and error.
I ordered every glue I could find.
I asked every lash tech for their favorites.
My results were amazing on some clients, terrible on others.
I felt confused, embarrassed, and underpaid — because I didn’t understand what was actually happening.
And then… it got worse. Until I decided to finally take retention seriously.
One day I realized no matter how stunning a lash set was, it lost all value if it didn’t last.
So I started:
- researching every ingredient in adhesives
- experimenting with different products
- tracking how my environment affected my glue
- studying drying times, humidity shifts, and polymerization
- taking notes every single appointment
After a year of deep focus on retention, the puzzle pieces finally connected.
My glue made sense.
My results became predictable.
And my confidence skyrocketed.
That’s when I knew I could help other lash artists unlock the same power.
MEET YOUR EDUCATOR
Hi, I'm Mars
I struggled with retention for YEARS. But I refused to build a reputation as “the lash tech with retention issues". So,
- I kept experimenting.
- I kept researching.
- I kept observing.
- I kept learning.
Today, after 6+ years of perfecting this, I never worry about the “hey girl” text.I know exactly when my glue is behaving correctly — and when it isn’t.
My retention is consistent, long-lasting, and reliable. No free fills. No refunds. No excuses. And now I’m teaching YOU the same retention mastery — so you can grow a stable, loyal clientele and step into your next level as an artist.
THIS COURSE WILL HELP YOU:
✔ stop blaming clients for retention issues
✔ stop wasting money hunting for “holy grail” glues
✔ finally understand what’s happening with your adhesive
✔ confidently raise your prices
✔ improve retention across ALL sets — classic, hybrid, volume, spikes
✔ save time during appointments
✔ attract loyal, high-value clients
✔ become the lash artist clients brag about
INSIDE THE COURSE
Introduction: Why Retention Matters
You’ll learn why retention is the backbone of a thriving lash business — not just a skill, but a strategy. This intro breaks down how retention influences client loyalty, your reputation, your income potential, and even the types of clients you attract. Before diving into the technical training, you’ll understand exactly why mastering retention is the smartest move you can make for 2026 and beyond.
Chapter 1: Retention Is the Foundation
This chapter shows you how retention is connected to every other part of your artistry. You’ll learn why retention issues aren’t random — they’re predictable once you understand the science behind lash adhesion. We cover the mindset and fundamentals you need before touching glue, including how proper retention allows you to confidently raise prices, improve your client experience, and stand out in saturated markets.
Chapter 2: The Lash Cycle
Mastering retention starts with understanding the natural lash cycle. In this chapter, you’ll learn how lash growth phases affect fills, shedding, lash longevity, and why certain clients see faster lash loss than others. You’ll understand how to tell the difference between normal shedding vs. poor retention — and how to adjust your work based on growth patterns, seasonal shifts, and client-specific factors.
Chapter 3: Application Techniques
Every long-lasting set starts with technique. This chapter covers the core application principles that directly influence retention, such as wrapping, surface area optimization, proper base bonding, avoiding lifted bases, and placement angles. You’ll learn how different techniques (volume, wispy, premade, promade) require different handling for best results — and how minor adjustments can make your sets last 2–3 weeks longer. Video demonstrations included!
Chapter 4: Glue 101 — Understanding Your Adhesive
This is where everything clicks. You’ll deep dive into adhesive behavior, learning how glue cures, how micro-dots actually work, how humidity and temperature shift performance, and how to prep your adhesive so it behaves consistently every time. You’ll understand pH levels, viscosity, pickup technique, and the environmental factors that cause your glue to slide, shock cure, dry too fast, or dry too slow. This chapter alone will solve 80% of retention issues.
Chapter 5: Contraindications
This chapter uncovers the reasons retention fails before you even start applying lashes. You’ll learn how allergies, lash porosity, skin type, pre-existing conditions, client habits, aftercare, and even your prep routine influence retention. You’ll also learn how to adjust your prep steps (lash baths, primer, solution choices) based on each client’s lash health — and how to prevent the most common mistakes that ruin retention without you realizing it.
Bonus Checklists
Your go-to reference tools to implement everything you’ve learned. These checklists help you streamline your prep, evaluate glue performance during appointments, troubleshoot problems in real time, and double-check your technique so you can confidently apply every principle from the course.
absolutely loving the lash retention guide! there's sooo much more information than i anticipated when purchasing!! i'm always hesitant when it comes to online courses/ e-books but this one definitely did not disappoint, the attention to detail is incomparable. so excited to implement all of the information for myself and my clients, thank you thank you thank you 🤍
I recently purchased the retention ebook & I'm loving it! I like how it comes with demo videos for those who are more visual learners like myself ☺️. Id definitely recommend to any lash tech struggling with retention!
Mars's Retention guide is one of the BEST ive seen on the market she includes in various detail different techniques of application methods for different set styles. She explains the best temperature and humidity for different glue types and even goes in depth explaining how glue works in general. You can tell by reading and applying her methods that she took time in crafting her skills and creating her EBook and she provides valuable and vital information that's imperative to improving your retention. Not only does she include in depth and outstanding material but it's clear, concise, and easy to follow; she really cares about your success and has reached out to me outside of purchasing her product to make sure I fully understood the concepts and how i'm applying them. I feel more comfortable when lashing knowing i'm paying attention to all factors of retention. I couldn't recommend this product more to lash artists struggling to retain clients + and improve their retention. Mars in an outstanding mentor and creator!
The retention guide is so detailed and full of knowledge! Even for someone like me who's been lashing for 5 years, i was still able to learn a lot from it and pick up new tricks and tips from you! i love the all close up videos and everything is explained so thoroughly. i highly recommend this to all lash artists, new or experienced! 💗
This retention guide is so detailed and informative. I am definitely a visual/hands on learner and the videos that are included help immensely. Or the videos that demonstrate activities you can do like the fan-on-the-log to help improve my technique. This retention guide provides info from how to properly apply a lash to how to properly store your lash glue. The examples include new and upcoming lash artists like myself. Can't wait to put this information to action! Thank you Mars for putting this together 🫶🏻