Eyelash Growth Serum FAQ

What is the eyelash growth serum?

The eyelash growth serum is a prescription treatment used to grow eyelashes, making them longer, thicker and darker.

How does it work?

It works by increasing the growth (anagen) phase of the eyelash hair, thereby increasing the length and number of eyelash hairs.

How do I apply the eyelash growth serum?

The eyelash growth serum is a once-a-day treatment you apply yourself each evening to the base of the upper eyelashes. DO NOT APPLY in your eye or to the lower lid because excess hair growth outside the treatment area may occur.

How soon will I see results?

Users may see results at 8 weeks with full results at 12 to 16 weeks. The growth is gradual, overnight, over time.

Is it a replacement for mascara?

No, it does not work in place of mascara. However, mascara can be used on your eyelashes in addition to the eyelash growth serum.

Is the eyelash growth serum different from nonprescription products that indicate eyelash growth?

The eyelash growth serum is a prescription treatment for inadequate or not having enough eyelashes and is clinically proven to grow them longer, fuller and darker.

What if I forget to apply one night? Or a few nights?

If you miss an application or a few, don’t try to catch up. Just apply the treatment the next evening and stay on schedule.

What happens if I stop using the eyelash growth serum?

If you stop using the serum, your eyelashes are expected to return to their previous appearance over several weeks to months.

What are the possible side effects of the eyelash growth serum?

The most common side effects after using the serum are an itching sensation in the eyes and/or eye redness. This was reported in approximately 4% of patients. Other less common side effects which typically occur on the skin close to where the serum is applied, or in the eyes include skin darkening, eye irritation, dryness of the eyes, and redness of the eyelids.

The eyelash growth serum use may cause darkening of the eyelid skin which may be reversible. It may also cause increased brown pigmentation of the colored part of the eye (iris) which is likely to be permanent.

It is possible for hair growth to occur in other areas of your skin that the serum frequently touches. Any excess solution outside the upper eyelid margin should be blotted with a tissue or other absorbent material to reduce the chance of this from happening. It is also possible for a difference in eyelash length, thickness, fullness, pigmentation, number of eyelash hairs, and/or direction of eyelash growth to occur between eyes. These differences, should they occur, will usually go away if you stop using the serum.

What should I do if I wear contact lenses?

Contact lenses should be removed prior to application of the serum and may be reinserted 15 minutes following its administration.

What should I do if I get the serum in my eye?

If any of the serum gets into the eye, it is not expected to cause harm. The eye should not be rinsed.

What is skin hyperpigmentation?

This is a common condition in which areas of skin become darker than the surrounding skin color. This occurs when there is an increase in the melanin, the brown pigment that produces normal skin color, in the skin. Skin hyperpigmentation is a possible side effect but may be reversible after discontinuation of the product.

What should I do if I experience eye redness?

Eye redness may occur immediately after use. Consult your doctor if the redness persists or you notice other symptoms as well. If you develop a new eye condition (e.g. trauma or infection), experience a sudden decrease in visual acuity, have eye surgery, or develop any eye reactions, particularly conjunctivitis and eyelid reactions, you should immediately seek your physician’s advice.

Could the serum cause the color of my eyes to change?

Increased brown iris pigmentation has occurred when the same formulation of bimatoprost ophthalmic solution was instilled directly into the eye to treat elevated intraocular pressure/glaucoma. Patients should be advised about the potential for increased brown iris pigmentation which is likely to be permanent.

What should I do if I experience eye itching?

Eye itching may occur immediately after use. Consult your doctor if the itching persists or you notice other symptoms as well. If you develop a new eye condition (e.g. trauma or infection), experience a sudden decrease in visual acuity, have eye surgery, or develop any eye reactions, particularly conjunctivitis and eyelid reactions, you should immediately seek your physician’s advice.


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Related topics:

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About Dr. Tan
Dr. Tan graduated from the National University of Singapore in 2001. His residency was in the two largest public hospitals in Singapore; Tan Tock Seng Hospital and Singapore General Hospital.

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  1. Nice article its very helpfull thanks for sharing

  2. Jennifer See

    Hi Dr

    May I know can I use the eyelash growth serum when I am undergoing chemo?

    • The best person to ask is your oncologist who is administering the chemo for you. I believe it should not interact with your chemotherapy.

  3. hi doctor

    I am keen on trying the eyelash growth serum, what could be the cost and do I need to consult a doctor at yr clinic.
    Please advise.

    thank u

    • Dr Elaine Loh

      Latisse is via prescription from doctor, so best for you to go to our Robertson clinic and we can advise you on the usage of the medication. It is 160 dollars per box which usually last 2 months, excluding GST and consult.

  4. hidr

    I am keen to buy the eye lash serum, how much does it cost and do i need to see a doctor there in yr clinic

    thank u

  5. Hi doc may i ask you abt the eyelash serum…can i apply on my eyebrow? Cause my eyebrow is slightly thin…thx.

    • Yes you can. In fact, what most patients do is apply on their eyelash and after that, since the brush is still wet, apply it on their eyebrows. No wastage! In fact, it works for hair on the head too!

  6. Kristina


    How long is it safe to use an eyelash serum? I am a big fan of FEG eyelash serum, it supposed to be 100% natural. But what if I already used up 2 bottles in a row and I love the effect and don’t want to stop? Are there any side effects if I keep using the serum? Will it affect my lashes in any way? One of my friends said that in a long run it makes your own to think out, is it true?

    Thank you!

    • I’m sorry. I do not know much about the FEG eyelash serum. At our clinic, we prescribe the eyelash serum containing bimatoprost. It is safe for long term use and does not cause thinning of your original lashes.

  7. Hi Doc, would like to know if the lashes would stop growing/return to original length once we stop using the product? I am not keen in relying on the product forever.
    Thank you.

    • Once you stop the product, the eyelashes would go back to original length in about 4 months. What actually happens is the long eyelashes do not shorten but they will eventually drop off. And the new ones that grow will not be as long. Since the normal life cycle of eyelashes is 4 months, that is how long it takes. What you can do to lessen your exposure to the product (and save some costs) is to apply every 2 to 3 days. You will find that it has a very similar effect as applying daily.

  8. Frankie

    Hi Doc, my question is not related to eyelashes but rather the eyelid itself. I noticed that my pair of eyelids are no longer asysmetrical to each other. The right upper eyelids is now drooping and covering a quarter of my pupil though its not obstructing the vision. I understand this is a medical condition call Ptosis. Is there any way to rectify the condition?

    • Hi, there are many causes for ptosis. I would advice that you see a doctor to get the appropriate diagnosis and treatment.


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