Every natural eyelash follows a growth cycle. It grows, stops, rests and falls out. Then a new lash starts in the same spot. This cycle explains why lashes shed, why they stop at a certain length and why regrowth takes weeks.
Timing varies from person to person, and sources don't always agree on exact numbers. This guide from Long4Lashes walks you through each stage in plain terms.
What Is the Eyelash Growth Cycle?
Quick answer: the eyelash growth cycle is the repeating process each lash goes through. It moves from growth (anagen) to transition (catagen) to rest (telogen). Then the lash sheds and a new one grows from the same follicle.
Anagen → Catagen → Telogen → Shedding → Regrowth
Your lashes are never all in the same phase. Some are growing, some are resting and some are about to fall. That is why you lose a few at a time and never all at once.
What Are the 3 Stages of Eyelash Growth?
1. Anagen: Active Growth
This is the only phase where lashes get longer. It often lasts about 30 to 45 days. One source puts growth at about 0.12 to 0.14 mm per day. The longer a lash stays here, the longer it can grow. This is the phase lash serums aim to support.
2. Catagen: Transition
Growth stops and the follicle shrinks. This lasts about 2 to 3 weeks. A lash lost during this phase may take longer to replace.
3. Telogen: Resting and Shedding
The lash stays in place but no longer grows. This phase often lasts around 3 to 4 months. At the end, the lash falls out and a new one starts growing.
How Long Does the Eyelash Growth Cycle Take?
A full cycle often takes several months. It helps to look at each phase:
|
Phase |
Approximate time |
What happens |
|
Anagen |
30 to 45 days |
Active growth |
|
Catagen |
2 to 3 weeks |
Growth stops |
|
Telogen |
3 to 4 months |
Rest, then shedding |
These are rough guides. Your lashes may run a little faster or slower.
How Fast Do Eyelashes Grow?
Quick answer: about 0.12 to 0.14 mm per day during the growth phase, based on one source. Lashes only grow during anagen, so their length is limited.
Growth rate and regrowth time are different. Growth rate is how fast a lash grows each day. Regrowth time is how long it takes to replace a lost lash. Regrowth takes longer because the follicle may rest first.
How Much Do Eyelashes Grow in a Month?
A growing lash could add roughly 3.5 to 4 mm in a month. But many lashes leave the growth phase before the month ends. So in any month, some lashes grow a little, some a lot and some not at all.
Why Do Eyelashes Shed?
Shedding is the last step of the cycle. The old lash lets go so a new one can grow. Some sources say losing about 1 to 5 lashes a day is normal. Watch for visible thinning rather than counting lashes.
Is Eyelash Shedding Normal?
|
Normal shedding |
Possible concern |
|
A few lashes now and then |
Sudden heavy loss |
|
Lashes slowly replaced |
Clear gaps or thinning |
|
No irritation |
Red, itchy or swollen lids |
|
Both eyes |
Repeated loss on one eye or one spot |
If your shedding sounds like the right column, read why do my eyelashes keep falling out.
How Long Does It Take for Eyelashes to Grow Back?
Quick answer: often 6 to 12 weeks, if the follicle is healthy. Damage from extensions or pulling can make it take 12 to 16 weeks or longer.
A new lash has to start a fresh growth phase, then grow at its slow daily rate. That is why lashes don't bounce back in days.
Will Eyelashes Grow Back If You Pull Them Out?
Usually yes, if the follicle isn't damaged. Pulling resets the follicle, so it takes weeks for a new lash to appear. Pulling the same area again and again can harm the follicle over time. If you pull your lashes and find it hard to stop, a doctor or therapist can help.
Eyelash Growth Cycle After Extensions
Extensions don't change the growth cycle. Your natural lashes keep growing and shedding underneath. When a natural lash sheds, its extension falls with it.
Heavy sets and rough removal can still break lashes or pull them out early. After removal, give your lashes time. A gentle nightly serum like the Long Lashes Forever Serum can support them as they grow back.
Eyelash Growth Cycle Week by Week
Here is an example for one lash. Every lash is different.
|
Time |
What happens |
|
Week 1 |
A new lash starts growing |
|
Weeks 2 to 6 |
The lash grows and gets longer |
|
Weeks 7 to 9 |
Growth stops |
|
Next 3 to 4 months |
The lash rests |
|
End of rest |
The lash sheds and a new cycle begins |
Can You Speed Up the Eyelash Growth Cycle?
You can't rush biology. You can help lashes make the most of each cycle:
-
Stop breakage so lashes reach full length.
-
Remove makeup gently to avoid early loss.
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Eat well with enough protein, iron and zinc.
-
Use a lash serum that supports the growth phase.
Conditioning helps lashes look healthier. Only some active ingredients aim to change how long lashes grow. For more tips, read how to get longer eyelashes.
What Factors Affect Eyelash Growth?
-
Genetics: sets your natural length and thickness.
-
Age: lashes can get thinner and shorter over time.
-
Nutrition: a real shortfall can affect hair.
-
Damage: rubbing, pulling and harsh curling break lashes.
-
Extensions: extra weight can cause breakage.
-
Makeup removal: scrubbing adds stress to lashes.
-
Health: thyroid problems, eyelid inflammation and some medicines can affect lashes.
Can Lash Serums Affect the Eyelash Growth Cycle?
Some can. Bimatoprost, the prescription ingredient in Latisse, keeps lashes in the growth phase longer. Cosmetic serums vary. Some use a prostaglandin ingredient to support growth. Others use peptides to condition lashes.
Our Intensive Eyelash Regrowth Serum pairs a prostaglandin ingredient with hyaluronic acid, provitamin B5 and allantoin to support the growth phase and condition lashes. For brows, the Long4Lashes Eyebrow Serum uses a similar base.
Results still follow the cycle, so expect weeks, not days. Our eyelash lengthening serum guide compares the options.
Eyelash Growth After Chemotherapy
Some chemotherapy causes lash and brow loss. Lashes often grow back after treatment, but timing varies. New lashes may be thinner or lighter at first. Talk to your healthcare team before using any lash product.
When Should You See a Doctor?
See a doctor if you notice sudden or heavy loss, repeated loss in one spot, changes on one eye, or red and swollen lids. Also see one if your brows or scalp hair are thinning too.
FAQs About the Eyelash Growth Cycle
How long is the eyelash growth cycle?
Often several months. Growth takes about 30 to 45 days, transition 2 to 3 weeks and rest 3 to 4 months.
What are the 3 stages of eyelash growth?
Anagen, catagen and telogen.
How fast do eyelashes grow?
About 0.12 to 0.14 mm per day during the growth phase.
How long does it take eyelashes to grow back?
Often 6 to 12 weeks if the follicle is healthy.
How many eyelashes do you lose each day?
Some sources say about 1 to 5.
Can you speed up eyelash growth?
Not the cycle itself. You can reduce breakage and use a serum to help lashes reach their best length.
Do lash extensions affect the growth cycle?
No, but they can cause breakage or early loss.
The Bottom Line
The eyelash growth cycle explains why lashes shed, why they stop at a certain length and why regrowth takes weeks. You can't change its pace, but you can protect your lashes at every stage.
Support your lashes with our Intensive Eyelash Regrowth Serum and Fabulash Enhancing Mascara.