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When to fill lash extensions (and when to give your lashes a rest)

Natural lashes shed and regrow in a cycle, so extensions gradually fall out with them. Timing your infills well keeps your set looking full without putting extra strain on your own lashes.

Technician applying lash extensions with tweezers

How often to fill

Time since your setWhat to expect
1–2 weeksFull, minimal shedding
2–3 weeksBest time for an infill
4+ weeksSparse; extensions sit far from the lash line

Signs of overloaded lashes

  • Extensions twisted, crossing or sticking out at odd angles
  • Natural lashes look thin, short or bald in patches
  • The lash line feels sore, itchy or heavy
  • Extensions fall out with the natural lash attached

If you see these signs, tell your technician. A lighter style or a break may help.

Tip: never pick at your lashes to "fix" them. Ask a professional to remove any problem extensions.

When to rest

  • Your natural lashes look weak or damaged
  • You've had irritation or redness around the eyes
  • You feel your lashes are too heavy for you

A few weeks without extensions, and a gentle routine with an oil-free cleanser, gives lashes time to recover.

Seek medical advice if you have pain, swelling or discharge. Related: products to avoid.

Frequently asked questions

How often should I get an infill?

Most people book every 2 to 3 weeks. Leaving it too long can mean a sparse look and heavy, grown-out extensions.

What if I have less than half my set left?

Many technicians suggest a new full set once a lot of the original has gone, as an infill may cost close to a full set.

How long should a break be?

It depends on your lashes. Ask your technician, and if your natural lashes look thin or feel sore, take a break.

This guide is educational and not medical advice. Always patch test new products, follow your technician's instructions and seek professional help if you have pain, swelling or an allergic reaction.

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