Will 3mL Last 1 Month?
No, a 3 mL bottle of Latisse will not last a full 30-day month with standard nightly dosing to both upper eyelids.
Volume Calculation
Based on the standard dosing regimen for bimatoprost ophthalmic solution (the active ingredient in Latisse):
- Standard dose: One drop per upper eyelid nightly 1, 2
- Total drops needed: 2 drops per night (one per eyelid)
- Monthly requirement: 60 drops for 30 days
The typical drop volume from an ophthalmic solution bottle is approximately 0.05 mL per drop. Therefore:
- 3 mL bottle contains: approximately 60 drops total
- Duration: This provides only 15 days of treatment when applying to both upper eyelids
Standard Packaging
Research studies consistently used once-daily application to upper eyelid margins 1, 2, 3. The pivotal trials demonstrating efficacy applied bimatoprost 0.03% solution once nightly for treatment periods ranging from 4 to 12 months 1, 2.
A 5 mL bottle is the standard commercial size for Latisse, which would provide approximately 100 drops—sufficient for a full month of bilateral upper eyelid treatment with some margin for waste.
Important Caveats
- Drop size can vary based on bottle design and application technique
- Some solution may be wasted during application
- The applicator brush provided with Latisse may absorb variable amounts of solution
- Never apply more than once daily—studies show that more frequent dosing does not improve efficacy and may paradoxically reduce effectiveness 4
You will need approximately a 5 mL bottle to complete one full month of treatment when applying to both upper eyelids nightly.