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STEP 5: Retention & Speed Booster



Retention & Speed Booster is one of the BESTeyelash products on the market and absolute must-have in every professional lash extension kit! 

Natural lashes can be smooth and silky, which can result in extensions ‘sliding off’. Due to its Alkaline qualities, Retention and Speed Booster gently opens the hair cuticles without damaging the natural lashes, enabling the glue to grab on the cuticles and hold better, improving your retention. 

When the Retention and Speed Booster is applied, natural lashes become “magnetic”. You don't need to hold the extension above the natural lash for a while to make it “grip” - so your treatment time improves significantly. 

If Retention and Speed Booster is applied on the base of the extensions strip, it helps to stop glue running up the fibre and closing the lash fans, making Russian Volume lash application faster and easier.

Retention & Speed Booster:

  • Improves retention 
  • Increases the speed of work 
  • Stops your fans from closing
  • Works with ANY adhesive
  • Cost-effective – 15ml bottle will last you for approx 150 – 200 clients!

 Do you want to try before you buy? Grab a sample here!

    Product details

    • 3 months of shelf life once opened
    • Capacity: 15ml and 2ml (sample size)

    Glue chart

    London Lash Glue Chart

    How to use

    To increase the retention:

    Apply Retention & Speed Booster with a micro brush on natural lashes, after cleanser and primer to slightly open hair cuticles and increase the surface for better grip and adhesion. 


    To increase the speed of the treatment:

    Apply Retention & Speed Booster with a micro brush on the strip of the extensions in the box or on the lash palette to prevent the lash fan from closing during the "fanning". 


    IMPORTANT! Do not use on Easy Fanning lashes! Easy Fanning Lashes are made by connecting multiple layers of lashes with a very fine non-cyanoacrylate adhesive. Booster can melt this adhesive, making Easy Fanning lashes difficult to apply.

    Product properties

    Cruelty-free Retention boosting Vegan
    Queens Award 2020
    London Lash are proud winners of the Queen's Award 2020

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