People often ask me, ’Can I use lash serum if I have lash extensions?

The answer? Absolutely yes, if you’re using the right kind of eyelash serum. Let’s explore why eyelash growth serum and extensions make a great combo, and how to care for both like a pro.

Why Use a Lash Serum With Lash Extensions?

Extensions deliver instant volume and length, but their staying power relies on your natural lashes. If your lashes are weak or sparse, extensions won’t hold well and may shed faster.

A quality UKLASH serum supports:

• Stronger, longer natural lashes
• Reduced breakage and fallout
• A healthier lash growth cycle
• Better extension retention

In short, extensions help give you the look, lash serums build the foundation.

How Long Do Lash Extensions Last?

On average, extensions last 3 to 5 weeks, shedding naturally with your lash cycle (every 6–8 weeks). That’s why lash technicians recommend infills every 2–3 weeks.

By contrast, UKLASH Lash Serums work in the background, providing longer, fuller lashes in just 12 weeks, and maintenance is as simple as one swipe a day, no salon trips necessary.

If you're not sure which UKLASH Serum is for you, why not head to our lash serum quiz to find out?

Will Lash Serum Affect My Extensions?

Many lash serums are oil-based, which can weaken the adhesive used to apply extensions, but UKLASH serums don't feature oils, so are perfect to pair with extensions!

All of our UKLASH Lash Serums are:

• 100% oil-free
• Designed for use with extensions
• Free from silicones and harsh ingredients
• Dermatologist & Ophthalmologist tested
• Cruelty-free & Vegan

Let’s Hear From Lash Tech, Samantha aka Glam By Sam

I recently caught up with Samantha Schneider, a certified lash technician with over 10 years of experience and a proud UKLASH stockist in her salon, Glam By Sam. She shares insights into how lash serums improve eyelash extension retention and gives her top tips for safe application.

1. How does UKLASH Lash Serum help to enhance and extend the look of lash extensions?

Honestly, it just makes everything look fuller and healthier. When your natural lashes are strong and thriving underneath, it gives your extensions a better base to hold onto and they just sit nicer. It’s like skincare, but for your lashes. Taking care of your base makes everything look better!

2. Have you or your clients noticed any difference in retention when using UKLASH serums with extensions?

Yes, for sure. Clients who use the serum consistently tend to have better retention overall. Their lashes shed less and hold better because the natural lashes aren’t as brittle or weak. It’s not a magic fix but when it’s part of the routine, it definitely helps!

3. Are there any myths or misconceptions you hear from clients about lash serums?

All the time. The biggest one is people thinking it’ll make their lashes fall out more or that it’s not safe with extensions.

Not true, if you’re using a good quality serum like UKLASH and applying it properly, it’s totally fine. Another one is people assuming it works overnight. You gotta give it a few weeks of consistent use!

4. How do you guide clients on applying lash serum without affecting lash adhesive?

I always tell them: less is more, and apply like eyeliner not all over the lashes. Apply a thin layer on the lash line before bed. That way it stays clear of the adhesive, and you still get the benefits without messing with your extensions!

How to Apply Lash Serum With Lash Extensions

To protect your extensions and get the most from your serum, follow these steps:

1. Cleanse Gently Use an oil-free cleanser and pat dry.
2. Apply Serum Swipe a thin layer along the upper lash line, like eyeliner. One dip is enough for both eyes.
3. Avoid the Lashes Themselves Target the base of your lash line as that’s where growth happens.
4. Let It Dry Wait for the serum to dry before applying any other products.

At UKLASH, we aim to be here for you through every stage of your lash journey, whether you’re looking to maintain your eyelash extensions, repair your natural lashes after years of damage or finally achieve the fuller, healthier natural lashes you’ve always dreamed of. Our clinically proven, solutions-focused serums are here to help you all the way….

If you have any questions about using lash serum with extensions, feel free to reach out to our Customer Care team at contact@uklash.com. We’re always happy to help!