Latisse for Eyelash Growth
What Latisse Is and Who It Helps
Latisse is a prescription medication containing bimatoprost 0.03%, a prostaglandin analog. The FDA approved it in December 2008 as the only prescription product indicated for eyelash hypotrichosis, a condition where your lashes are inadequate in length, thickness, or darkness. You need a doctor's prescription to obtain Latisse.
Bimatoprost was first used in glaucoma treatment under a different product name. Eye doctors recognized that patients using it for glaucoma developed longer, darker lashes as a side effect. This led to the FDA-approved cosmetic application at the same concentration, applied to the skin of the upper eyelid.
Latisse is intended for adults who want longer, fuller, or darker upper eyelashes. If your lashes have thinned from aging, medical treatments, or conditions like alopecia areata, your eye doctor may recommend Latisse. Your doctor will check your eye health, including your eye pressure and any active inflammation, before writing a prescription.
You should not use Latisse if you have active inflammation inside your eye (uveitis) or if you are using another prostaglandin analog eye drop for glaucoma without your doctor's guidance. Pregnant and breastfeeding patients should avoid it until more safety data are available.
Clinical trials measured eyelash length, thickness, and darkness at 4 months of nightly use. The FDA Summary Review reported a 25% increase in length, 106% increase in thickness, and 18% increase in darkness compared to placebo (FDA NDA 022369). These results were consistent across multiple controlled trials. Researchers have also studied bimatoprost for eyebrow growth with positive results (PMC, 2017).
Using Latisse: Application and Results
Each night, place one drop of Latisse on the sterile single-use applicator included in your prescription kit. Draw the applicator along the skin at the base of your upper lashes, from the inner corner to the outer corner. Use a new applicator for each eye. Do not apply Latisse to your lower lashes or inside your eye.
- Remove contact lenses before applying
- Wait at least 15 minutes before reinserting lenses
- Blot any excess solution that spreads beyond the lash line
- Dispose of each applicator after a single use
Most patients notice initial changes at 4 to 8 weeks. Full results develop at 16 weeks of consistent nightly application. If you stop using Latisse, your lashes return to their pre-treatment appearance over several weeks to months. Continuous use maintains the improvement.
Some patients use Latisse alongside eyelash extensions or tinting. If you have extensions, ask your doctor whether the adhesive and removal process could affect your lash health. Latisse does not interfere with mascara or lash curling, but avoid applying any eye makeup to the lash line until the solution has dried.
Side Effects and Risks
A pooled analysis of 6 randomized controlled trials found the most common side effects include conjunctival hyperemia (eye redness, 5% or more of users), skin hyperpigmentation at the application site (2.9%), and eyelid pigmentation (3.4%) (PMC, 2015). Eye itching and dry eye also occur in some patients. These side effects often decrease over time or stop when you discontinue the medication.
Bimatoprost can increase melanin in your iris. If you have mixed-color irises (hazel, green-brown, blue-brown), the color change may be noticeable and may not reverse after you stop Latisse. The AAO recommends patients understand this risk before starting treatment. Careful application to the eyelid skin and blotting excess solution reduce the chance of the medication entering your eye.
Because bimatoprost lowers intraocular pressure in its glaucoma formulation, a mild pressure-lowering effect may occur with Latisse use. Your eye doctor may want to check your eye pressure before prescribing Latisse and at follow-up visits. Do not use Latisse concurrently with other prostaglandin analog eye drops unless your doctor directs you to.
Latisse vs. Other Lash Growth Options
Latisse is the only FDA-approved prescription product for eyelash growth. Over-the-counter lash serums may contain peptides, biotin, or plant extracts, but none have been through the FDA approval process for this indication. Some OTC products contain prostaglandin analogs that are not FDA-approved for lash growth and have not been studied as rigorously as bimatoprost.
Eyelash extensions are synthetic or natural fibers glued to your existing lashes. They create immediate dramatic results but require maintenance every two to three weeks and can damage your natural lashes over time. Lash lifts curl your natural lashes using a chemical solution and last about six to eight weeks. Neither extensions nor lifts increase your actual lash growth.
Latisse produces real lash growth from your own follicles. The results are more subtle than extensions but do not require salon maintenance. Some patients use Latisse to strengthen lashes weakened by long-term extension use.
Doctors have studied bimatoprost for eyebrow regrowth in patients with eyebrow hypotrichosis (thin or sparse eyebrows). A study published in PMC (2017) showed positive results for this off-label application in both adults and pediatric patients. Bimatoprost has also been studied for eyelash loss from alopecia areata, an autoimmune condition that causes hair to fall out in patches (PMC, 2011).
Off-label use means your doctor prescribes a medication for a purpose not included in its FDA-approved label. This is a common and legal practice in medicine when clinical evidence supports the use. Your doctor can discuss whether off-label bimatoprost is appropriate for your specific situation and what results you can realistically expect.
Practical Questions About Latisse
A standard Latisse prescription kit contains enough solution and applicators for about 30 days of nightly use (one application per eye per night). Your doctor will prescribe refills based on your treatment plan. Most patients continue for at least 16 weeks to see full results.
A small amount of solution reaching your eye is not harmful, but it increases the chance of side effects like redness and potential iris color change. If excess solution drips into your eye, blot it with a tissue. Rinse your eye if you experience irritation. Report repeated problems to your doctor.
Wait until your surgeon confirms your eyelids have fully healed before starting Latisse. The application involves drawing a brush across your lash line, and this contact could irritate healing incisions. Ask your surgeon for a specific timeline based on your recovery.
Latisse grows your own natural lashes, so the results are proportional to your existing lashes. The improvement is noticeable but not artificial-looking. Your lashes will be longer, thicker, and darker than they were before treatment, but they remain your own lashes.
If you stop Latisse, your lashes gradually return to their pre-treatment appearance over several weeks to months. Some patients switch to every-other-night application after reaching full results to maintain some benefit while using less product. Discuss maintenance dosing with your doctor.
Get a Latisse Evaluation from Your Eye Doctor
Your eye doctor can check whether Latisse is safe for your eyes and lash goals. An evaluation includes measuring your eye pressure, examining your eyelid health, and reviewing medications you take.