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Products for Better Retention
  • LASH GLUES

  • LIQUIDS

  • GLUES
  • LIQUIDS
  • LASHES
  • LASH LIFT
  • PRO PRODUCTS
  • EDUCATION
  • Step 4: Pre-treatment Lash Primer 15ml

    Our Lash Primer is specifically engineered to restore essential moisture to natural lashes after deep cleansing, allowing the adhesive to bond perfectly. This updated formula, available in both tropical Coconut and Unscented versions, is bottled in recyclable glass packaging with a built-in pipette for precise, mess-free application.

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    ✅ NO RISK. Love it or your money back.
    📦 Order by 2pm ET (Mon–Fri) for same-day dispatch.

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    Key benefits
    • Boost retention by prepping and balancing the natural lash surface
    • Strengthen adhesive hold for longer-lasting, high-quality sets
    • Enhance your workflow with quicker, more responsive glue performance
    • Deliver reliable, repeatable results from the very first step
    • Upgrade your prep routine with an essential pro-level step
    Is this product right for me?

    Who is the Lash Primer for? 

    This product is an essential staple for every professional lash technician, from beginners to advanced artists, who wants to ensure their sets provide the best possible retention for their clients.

     

    What is the Lash Primer? 

    It is a hydrating pre-treatment solution that rebalances the natural lash after the cleaning process. It helps stabilize the drying time of the glue and significantly improves the overall bond between the extension and the natural hair.

     

    When should you use it? 

    The Primer should be used as a key step of your pre-treatment routine, immediately after using a Cleanser. It is particularly vital for clients with dry or brittle lashes that need a moisture boost to ensure a secure, "magnetic" attachment.

     

    Why choose London Lash Primer? 

    Because a well-hydrated lash is a receptive lash. While Cleansers effectively remove oils and debris, they can also strip away necessary moisture; this Primer restores that balance, preventing the adhesive from becoming brittle and ensuring a flexible, long-lasting bond.

     

    Follow these professional steps for a safe and effective application:

    • Step One: Use the pipette to apply a small drop of Primer onto a microfiber brush. Ensure the brush is not over-saturated to prevent the product from running into the client's eyes.
    • Step Two: Apply the product evenly to the natural lashes, focusing specifically on the base of the lash (the "glue zone").
    • Step Three: Repeat the process along the entire lash line of both eyes. A wooden spatula can be used behind the lashes for added control during application.
    Description

    Our Lash Primer ensures your prep work is professional and effective, providing the perfect canvas for any classic or volume set.

    • Primary Benefit: Restores moisture and improves adhesive bonding
    • Scents Available: Coconut and Unscented
    • Packaging: 15ml recyclable glass bottle with precision pipette
    • Safety: For professional use only; eyes must remain closed throughout the process
    • Shelf Life: 18 months (unopened); 8 months (opened)
    • Bundle Opportunity: Did you know this product is a core component of our Super Prep DUO? Pair it with our Cleanser to save 25% and guarantee the ultimate clean for every client.
    FAQs

    How should my clients clean their lash extensions?

    We always recommend advising clients to use a professional lash cleanser specifically formulated for the delicate eye area and safe for eyelash extensions.

     

    Our Lash Foam Cleanser is designed to:

    • Gently remove makeup, oil, and daily buildup
    • Keep lashes clean without compromising retention
    • Help extensions last longer between fills
       

    Using products not designed for lash extensions (like baby shampoo) can lead to dryness, irritation, or poor retention, as they are not formulated for the eye area or adhesive bonds.

     

    For clients with sensitive skin or sensitivities to Tea Tree, a gentle, alternative foaming cleanser is recommended.

    To support your clients further, consider providing digital aftercare guides so they can maintain their lashes correctly at home.

     

    My client’s lashes look clean, but retention is still poor — why?

    Even when lashes appear clean, residue such as oils, skincare, or microscopic buildup can still be present and affect retention.

    If you’re experiencing retention issues:

    • Review your full pre-treatment routine
    • Ensure each step is completed thoroughly
    • Double-check your adhesive is being used within its recommended conditions
       

    Also, client aftercare plays a huge role — improper cleansing or exposure to oils can reduce retention significantly.

     

    What’s the difference between Booster and Superbonder?

    Both products improve retention, but they work in completely different ways:

     

    Booster (Retention & Speed Booster):

    • Applied to the lash strip only (never natural lashes)
    • Speeds up adhesive curing
    • Helps prevent fans from closing
    • Improves control during volume application
    • Supports stronger retention

    Superbonder:

    • Applied after the treatment is complete
    • Increases adhesive flexibility to reduce breakage
    • Seals in fumes to reduce irritation and sensitivity
    • Allows lashes to get wet immediately after treatment
    • Enhances overall retention
       

    What’s the difference between Cleanser and Primer?

    Both are essential for proper lash preparation, but they serve different purposes:

     

    Cleanser:

    Alcohol-based formula
    Removes oils, proteins, and residue from natural lashes
    Deep cleans the lash surface
     

    Primer:

    Water-based formula
    Rehydrates lashes after cleansing
    Balances pH levels
    Prepares lashes for optimal adhesive bonding

    Using Cleanser alone is not recommended. Because it removes moisture, skipping Primer can lead to poor curing and reduced retention.

     

    What pre-treatment routine gives the best retention?

    A consistent, thorough pre-treatment routine is key to long-lasting results. In many cases, retention issues come down to prep — not the adhesive.

     

    Recommended routine:

    1. Cleanse the lashes: Use a lash foam cleanser to remove makeup and surface debris
    2. Use Protein Remover Pads: Remove any remaining oils or residue around the lash line
    3. Apply Cleanser: Deep cleanse to eliminate any final traces of oil or product
    4. Apply Primer: eintroduce moisture and balance the lashes for optimal bonding
    5. Use Booster (on lash strip only): Speed up curing and improve application control

      A proper prep routine can make a significant difference in retention and overall results.

     

    Can I use only a cleanser before applying lashes?

    For best results, we recommend completing the full pre-treatment routine rather than relying on Cleanser alone.

    Cleanser removes oils effectively, but it also dehydrates the lashes. Without restoring moisture using a Primer, the adhesive may cure too slowly
    the bonding may be compromised and retention can suffer.
     

    Using both Cleanser and Primer ensures the lashes are properly balanced and ready for optimal adhesion.

    Properties
    Cruelty-free Vegan
    Reviews

    Customer Reviews

    Based on 16 reviews
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    e
    e.D.L.

    retention is amazing

    Hi Emily!

    Thank you so much for your lovely review! We’re thrilled to hear that the Primer is giving you such amazing retention — that’s exactly what we love to hear 😍✨

    - LLP X 💖

    D
    Darlin López

    I got a primer that reached below the halfway Point😭

    Hi Darlin!

    Thank you so much for your review, and we’re truly so sorry to hear that your primer arrived below the halfway point 😢. That’s definitely not the experience we want for you. We’ve had a look but couldn’t find a recent order for the Primer under your details — so we can get this sorted as quickly as possible, could you please reach out to our lovely customer service team at support@londonlash.com
    ? They’ll be more than happy to help you right away ✨

    - LLP X

    B
    Brooklynn

    Works good, no harsh odor will definitely order again

    Hi Brooklyn,

    Thank you so much for your amazing 5 star review, we're so glad to hear you love our primer!

    - LLP x

    S
    ShellyA
    My Go-To For Best Primer

    I’ve tried others, but this has the magic. A keeper for my lash kit.

    Hi Shelly,

    Thank you so much for leaving such an amazing 5 star review!

    We are so happy to hear you love our Primer!

    - LLP x

    A
    Ana

    Love this primer! Will be ordering again!!