Latisse - Potential Side Effects
Along with application tips too.

  
WHO SHOULD NOT USE LATISSE®:  People being treated for glaucoma, skin/eye infections, or chronic eye problems; pregnant or lactating women.

If you have any eye condition including but not limited to an eye infection, broken or irritated upper eyelid skin, elevated intraocular pressure, or glaucoma, or you are allergic to any of the ingredients, you should talk to your physician in person prior to using Latisse®. As a precaution, pregnant and lactating women should not use this product as potential side effects to the unborn or nursing infant are not fully known.

LATISSE® SOLUTION CONTAINS: 

Active ingredient: bimatoprost opthalmic solution

Inactive ingredients: benzalkonium chloride; sodium chloride; sodium phosphate, dibasic; citric acid; and purified water.
Sodium hydroxide and/or hydrochloric acid may be added to adjust pH. The pH during its shelf life ranges from 6.8 — 7.8.

POTENTIAL SIDE EFFECTS:  Eye redness/ itchiness, eyelid hyperpigmentation, unwanted hair growth, dry eyes, iris pigmentation (rare). The most common side effects after properly using Latisse® solution are an itching sensation in the eyes and/or eye redness, which were reported in approximately 4% of patients. These may occur immediately after use, but should usually last only for a short period of time. Assuming that you have no known allergies to any of the product's ingredients, eye itching and eye redness are not allergic reactions, and do not mean that your eyes are being harmed. Latisse® may cause other less common side effects, which typically occur on the skin close to where Latisse® is applied, or in the eyes. These include eye irritation, dryness of the eyes, and redness of the eyelids. Skin darkening (or hyperpigmentation) and unwanted hair growth are other less common side effects.  Increased brown iris pigmentation has occurred when similar medications were instilled directly into the eye to treat elevated intraocular pressure/glaucoma. Although iris pigmentation was not reported in clinical studies with Latisse®, patients should be advised about the potential for increased brown iris pigmentation which is likely to be permanent.

HOW TO USE:   One drop, per eye, per sterile applicator at bedtime. 
You should always only use the FDA-approved sterile applicators that come with the solution to apply Latisse® directly to the base of your upper eyelashes only. The applicators have been specially designed and manufactured to meet FDA standards, and help patients properly apply and release the product in the correct dose. More is not necessarily better. Too much can increase your risk of side effects. Keep the brush tilted down while applying solution. Apply to the upper lid along the base of the lashes. It should feel damp, but not dripping. Blot any excess away from corners of the eyes with a tissue.

RESULTS:  Typically, LATISSE® users may see good results at 8 weeks with full results at 12 to 16 weeks.  Remember, the growth is gradual, overnight and over time...