Eyelashes are not just a hallmark of beauty; they serve as critical protectors for our eyes. A 2015 study revealed that eyelashes reduce tear evaporation by up to 50%, acting as natural air filters and keeping our eyes moist.

Latisse, a product renowned for enhancing eyelash growth, has become a beacon of hope for those seeking fuller lashes. Its active ingredient, bimatoprost, promises to bolster lash prominence with continued use.

In this article, we’ll delve into the science behind Latisse, explore its effects on lash length, and address safety considerations.

Key Takeaways

  • Latisse is a prescription lash serum approved by the FDA that causes lashes to grow longer, darker, and thicker in 16 weeks.
  • Clinical studies show users experience a 25% increase in lash length and more than double the fullness after using Latiscence daily as directed.
  • For best results, use Latisse consistently as part of your nightly routine, and reduce usage to every other day after achieving the desired lash growth. You can start seeing results in about four weeks, with significant changes around the two-month mark.
  • Some may notice their eyelid skin gets darker or eye color changes if not applied carefully; these side effects are reversible.

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Introduction to Latisse

Latisse is a prescription medication containing 0.03% bimatoprost ophthalmic solution. Originally developed to treat glaucoma, bimatoprost had the side effect of enhancing eyelash growth. This led to its repurposing and subsequent approval for cosmetic use. 

Latisse works by extending the hair cycle’s growth phase (anagen phase) and increasing the number of hairs in this phase, resulting in longer, thicker, and darker eyelashes.

In 2008, the U.S. Food and Drug Administration (FDA) approved Latisse for treating eyelash hypotrichosis, a condition characterized by insufficient or inadequate eyelashes. This approval was based on clinical trials that demonstrated the safety and efficacy of Latisse in promoting significant eyelash growth. 

Timeline for Visible Results

Latisse works its magic over time, and the results become noticeable after consistent use. Here is the timeline for when you can expect changes in your eyelashes.

  • In the first month, you might see little change. Your eyelashes are starting to grow longer and more robust from within.
  • Visible results start showing around month two. This is where the length of your lashes begins to increase.
  • The fullness and darkness of the eyelashes become more apparent by the third month.
  • At 16 weeks, Latisse has reached its maximum effect, delivering fuller, longer, and darker lashes, as clinically proven.
  • Continuing daily application up to this point is crucial; stopping or reducing usage could slow down progress.
  • Even after initial results at two months, sticking with the nightly application routine ensures optimal outcomes.
  • Consistency is vital; applications must be included in the appearance of those desired effects.

Several things can affect how fast you’ll see results from Latisse. Everyone’s eyelashes grow at a different speed, about 0.12–0.14 mm daily. Also, lashes have a life cycle with three parts: anagen, catagen, and telogen phases.

This means your lashes are always in various stages of growth and rest. How well you take care of your eyes matters, too. Using warm compresses and keeping your eyelids clean can make Latisse work better or faster for some people.

Clinical Studies and Patient Testimonials

Person fixing their eye lashes.

This prescription treatment for enhancing eyelash growth significantly increased lash length, fullness, thickness, and darkness after 16 weeks of daily use. Some professionals have also found that the off-label use of Latisse for brows can also help those who want to achieve particular aesthetic goals.

Latisse has shown promising results in clinical studies for eyelash growth. Real-life outcomes offer a closer look at how effective this treatment can be.

Before and after of eye lashes.

Image Courtesy of Berman Skin Institute

Aside from before-and-after pictures, patient testimonials also support Latisse’s efficacy in delivering longer, fuller lashes.

  • I could see a difference in lash length after one week! I’ve been using it now almost a month and my lashes are darker, longer and fuller. I’m not crazy about the brushes that come with it. Seems the first drop absorbs into the brush, so I end up having to use two drops to sufficiently cover both eye lids. I’m very satisfied with the results and will continue usage!
  • I’ve only been using Latisse for 2 weeks, but I can see new lashes coming in, and my ‘older’ lashes are getting stronger! I have GREAT TIPS; I use 2 eyeliner brushes, one labeled Left, the other labeled Right. I clean them with Dial soap before use to sanitize them, and because they are so small, I only use one drop of Latisse for BOTH eyes! Place that one drop in the lid and dip the brushes in. Another tip my Dr told me is after 3 months of use; I should use Latisse every 3-4 nights to maintain! This means 1 bottle will last me 3-4 months, thus saving me a TON of money;) That’s always nice!!! Good luck! Be consistent!

Tips for Maximizing Latisse Effectiveness

Eye lashes.

Applying Latisse daily is essential to achieving the best results. Use one drop daily as part of your nightly routine before bed. This consistency helps ensure you get the full benefits of the treatment. While initial changes may be noticeable in about two months, it typically takes 16 weeks to see the most significant difference.

Once you reach your desired lash length and thickness, you can reduce the frequency of application. Applying Latisse every other night is sufficient to maintain your ideal lashes, ensuring they remain stunning without starting the regimen from scratch.

Patience and a steady hand are vital to achieving the best results with Latisse. Using the serum as part of your nightly routine maximizes absorption during the night. Allow the serum to dry for 15 minutes before applying mascara or eye makeup.

To avoid unwanted side effects, use Latisse only as directed. Most users notice eyelash growth within 2 to 3 months of daily use. After reaching your lash goals, switching to every-other-night applications will help maintain the results.


Latisse shows its magic in about 16 weeks, giving those once-thin lashes a chance to become whole and dark. It’s all about being patient and regular with the application. Just a nightly swipe across the upper eyelid does the trick.

Don’t rush it by using more; once a day is enough for those dream lashes to start showing off. Stick with it; soon enough, you’ll see why Latise is worth the wait.


1. When will I start to see results from Latisse?

You’ll notice longer lashes in about four weeks, with full results after 16 weeks.

2. Is it okay to miss a day of applying to Latisse?

Yes, just apply it the next night and continue your routine.

3. Can Latisse be used on both upper and lower eyelashes?

Only use it on your upper eyelashes; it will spread to the lower ones when you blink.

4. What happens if I stop using Latisse?

Your eyelashes will gradually return to their original state before treatment.

5. Will my eye color change if I use Latisse?

It’s rare, but there’s a slight chance for eye color change with its use.

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Mukamal, R. (2017, March 23). Why do humans have eyebrows and eyelashes? American Academy of Ophthalmology. Retrieved June 20, 2024, from https://www.aao.org/eye-health/tips-prevention/why-do-humans-have-eyebrows-eyelashes

Aumond, S., & Bitton, E. (2018). The eyelash follicle features and anomalies: A review. Journal of optometry, 11(4), 211–222. https://doi.org/10.1016/j.optom.2018.05.003

WebMD. (n.d.). Latisse base of the eyelashes: Drug reviews. WebMD. Retrieved June 20, 2024, from https://reviews.webmd.com/drugs/drugreview-151740-latisse-base-of-the-eyelashes