
Bimatoprost
Bimatoprost is a prescription medicine used to lower increased eye pressure. A specific 0.03% product is also approved to improve inadequate eyelashes.

What Is Bimatoprost?
Bimatoprost is a prostaglandin analogue prescribed for elevated intraocular pressure caused by open-angle glaucoma or ocular hypertension. It is also a treatment for inadequate eyelashes, known as eyelash hypotrichosis.
Latisse is a bimatoprost brand used at the upper eyelid margin. A product described as Latisse generic bimatoprost 0.03% may contain the same ingredient, but its intended use, applicators and instructions must be checked.
Bimatoprost for Eyelashes
When prescribed as bimatoprost for eyelashes, the solution is applied to the upper lash line rather than instilled like glaucoma drops. A bimatoprost lash serum can gradually increase lash length, thickness and darkness while treatment continues. Results vary.
Bimatoprost before and after photographs may use different lighting, mascara, angles or editing. Assess results with a prescriber rather than relying on promotional images.
Bimatoprost Mechanism of Action
The bimatoprost mechanism of action depends on its use. It lowers pressure by increasing fluid outflow from the eye. For lashes, it is believed to increase hairs in the active growth phase and extend that phase.
Bimatoprost 0.01% vs 0.03%
When comparing bimatoprost 0.01% vs 0.03%, concentration is not the only difference. In the US, Lumigan 0.01% treats elevated eye pressure, while Latisse 0.03% is applied for eyelash hypotrichosis. Bimatoprost ophthalmic solution 0.03% may also be labelled as eye drops in some markets.
Do not assume that two bimatoprost products are interchangeable. Check their indication and instructions.
How to Use Bimatoprost for Eyelash Growth
Follow the supplied directions. General eyelash-product instructions include:
Clean the face and remove makeup and contact lenses.
Place the directed amount on the supplied sterile applicator.
Apply a thin line along the upper eyelid margin at the base of the lashes.
Blot away excess solution.
Use a new sterile applicator for the other eye.
Do not apply to the lower eyelid or reuse applicators.
Using more does not produce faster growth. Reinsert contact lenses only after the interval stated in the instructions.
Can Bimatoprost Be Used on Eyebrows?
Bimatoprost eyebrows treatment is off-label in many countries. Do not apply it to eyebrows unless a qualified prescriber recommends and monitors this use.
Bimatoprost vs Latanoprost
Both medicines lower elevated eye pressure. When considering bimatoprost vs latanoprost, formulations, preservatives, response and side effects may differ. They are not interchangeable. Bimatoprost 0.03% also has an approved eyelash indication; latanoprost should not be substituted as an eyelash serum.
Bimatoprost Side Effects
Common side effects may include eye redness, itching, dryness, irritation, burning, watery eyes, and darkening of the eyelid skin. Repeated contact with surrounding skin may also cause unwanted hair growth. Blot away excess solution after application to reduce this risk.
Bimatoprost side effects orbital fat loss refers to reported changes such as a deeper upper-eyelid groove, drooping, skin tightness or a sunken appearance. Contact an eye specialist if these develop.
Bimatoprost can increase brown iris pigmentation, particularly when solution enters the eye. It develops gradually and is likely permanent. Eyelid-skin darkening may improve after stopping treatment.
Seek prompt medical advice for eye pain, significant swelling, light sensitivity, infection symptoms, reduced vision or any sudden change in vision.
General Precautions
Use bimatoprost only as prescribed and never share it.
Keep the bottle tip and applicators away from fingers and other surfaces.
Tell the prescriber about glaucoma medicines, eye inflammation, macular problems, eye surgery, injury, infection and pregnancy or breastfeeding.
Do not combine Latisse with pressure-lowering prostaglandin eye drops without ophthalmic supervision.
Check whether the product contains benzalkonium chloride if soft contact lenses are worn.
Do not use a product that is expired, unsealed, damaged or incorrectly labelled.
Frequently Asked Questions
Bimatoprost is prescription-only in many countries. Local requirements vary, but medical assessment is important because it affects eye pressure and eye health.