
Works with your lash cycle
Bimatoprost extends the growth phase of the lash cycle, so more lashes grow longer, fuller, and darker over a couple of months.









The people pictured are models, not patients.
RxPrescription Skincare
Longer lashes, prescribed.
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Bimatoprost lash serum · 0.03%
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$206 billed today, then every month until canceled.
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After checkout you complete a short medical review in your member portal, and a US-licensed provider reviews it before anything ships.
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Common questions

Before bed
The people pictured are models, not patients.

Bimatoprost extends the growth phase of the lash cycle, so more lashes grow longer, fuller, and darker over a couple of months.

Bimatoprost is the active in the only prescription treatment FDA-approved for inadequate eyelashes. Your serum is compounded by a US-licensed pharmacy.

A single stroke along the upper lash line at night, the same way it was studied. Nothing is applied to the lower lash line.

A US-licensed provider confirms bimatoprost is appropriate for you before it ships. Real pricing, shown up front.
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Understand your treatment
Bimatoprost is a prostaglandin analog with research on eyelash growth. Its role is distinct from mascara, which changes the appearance of lashes while worn, and from a conditioning cosmetic serum. Lash length, fullness and darkness are separate measures used in the research. This helps explain the difference between an ingredient studied for growth and a product that mainly coats or conditions the existing lash.
A closer look
A hair-growth ingredient for eyelashes.
Make a more informed choice
Mascara provides an immediate visual finish. Bimatoprost is studied over time for eyelash growth. Those are different product goals and different ways of assessing change.
HealthRX.com verified facts
Bimatoprost Lash Serum starts at $165 per month on 12-month plan; the lowest checkout charge is $206 (billed monthly). A prescription is never guaranteed. A licensed provider reviews each request before a pharmacy can dispense treatment.
Catalog verified August 26, 2026. Source: HealthRX.com checkout catalog and refund policy. Monthly equivalent divides the discounted plan charge by the number of months; checkout may collect a multi-month total.

Choose your treatment options and complete secure checkout. Then complete the online health intake.
A licensed physician (MD) reviews your completed intake and prescribes bimatoprost if it is appropriate for you.
A US-licensed pharmacy compounds your serum and ships it free in discreet packaging.
Message your care team anytime, and your provider adjusts your plan as your lashes respond.
Bimatoprost is the active behind prescription lash growth. Applied to the upper lash line nightly, it extends the growth phase of the lash cycle, so lashes grow longer, fuller and darker over a couple of months. Your provider reviews your history first. Compounded by a US-licensed pharmacy.
Bimatoprost is a prostaglandin analog that prolongs the anagen (growth) phase of the lash cycle. Compounded by a US-licensed pharmacy.
Bimatoprost reaches the follicle
Applied along the upper lash line, it is taken up by the lash follicles.
The growth phase extends
It prolongs the anagen, or active growth, phase of the lash cycle.
More lashes grow at once
More follicles stay in growth longer, so lashes get longer, fuller, and darker.
A longer growth phase means fuller, longer, darker lashes over a couple of months.
Bimatoprost 0.03 percent has been studied in a multicenter, randomized, double-masked, vehicle-controlled trial for eyelash growth. Here is what that research found.
78% vs 18%
In a randomized, double-masked, vehicle-controlled trial, 78.1 percent of people on bimatoprost had at least a one-grade improvement in overall eyelash prominence at week 16, versus 18.4 percent on vehicle.
Smith et al., J Am Acad Dermatol 2012
Length, fullness, darkness
People on bimatoprost had statistically greater increases in eyelash length, thickness, and darkness than those on vehicle in the same trial.
Smith et al., J Am Acad Dermatol 2012
1x / night
A single application along the upper lash line once nightly. No in-office visits required.
Two approaches to fuller lashes
| Bimatoprost | Cosmetic lash serums | |
|---|---|---|
| Regulatory status | Prescription, active FDA-approved for lash growth | Sold as cosmetics, not FDA-approved to grow lashes |
| How it works | Extends the lash growth phase | Mostly conditions the lashes you already have |
| Evidence | Randomized, vehicle-controlled trial | Limited controlled data |
| Provider oversight | Reviewed by a US-licensed provider | Bought off the shelf |
| Side effects | Can darken eyelid skin, and rarely the iris | Usually minimal |
| Best for | People who want measurable lash growth | People wanting light conditioning only |
Most people see fuller lashes around eight to twelve weeks. Results depend on continued use and fade gradually if you stop.
Weeks 1 to 4
Apply one stroke along the upper lash line each night after your provider confirms your prescription.
Weeks 4 to 8
Some people begin to notice a difference in this window. Keep applying nightly and message your care team with questions.
Weeks 8 to 12
Most people see fuller, longer lashes around eight to twelve weeks.
Ongoing
Results depend on continued use and fade gradually over weeks to months if you stop.
Reviewed by a licensed provider. Can darken the eyelid skin and, rarely, the iris. Apply only to the upper lash line.
Bimatoprost can darken the skin of the eyelid and, rarely, the colored part of the eye, the iris, which may be permanent. Apply only to the upper lash line, never the lower lid, and blot any excess. Uneven results are possible if you use it on one eye only. Tell your provider if you have an eye condition such as glaucoma, macular edema, or eye inflammation, or if you use other eye-pressure medications, before starting. This is not a complete list of side effects.
No prescription needed. Dietary supplements to keep alongside your skin care routine, sold separately from prescription treatment. Ask your provider before adding one to your routine.
Dietary supplements, not medications. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

An independent US-licensed clinician reviews every request. If they decide the treatment is not right for you, you get a full refund for the medication.
Prescriptions are filled by a US-licensed pharmacy and shipped free, in discreet packaging, on every plan.
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Compounded medications are prepared by a US-licensed pharmacy and are not reviewed by the FDA for safety or effectiveness. Products are dispensed only after a licensed provider determines they are appropriate. Information here is educational and is not a substitute for medical advice.