Yes, bimatoprost, the active ingredient of our Growth Treatment, is approved by the international government health agencies like the Food and Drug Administration (FDA) for use on eyelashes. However, like all medications, it can have side effects.

In rare cases the treatment may irritate the eye. In these cases we usually recommend more careful use of our applicators. If this does not solve the problem, you may have to discontinue treatment. If you have any further questions about safety, please contact us.

You should start to see noticeable improvements in the length and thickness of your eyelashes after 4 weeks, with the full effects seen after 12-16 weeks of daily use.

The sun protect serum takes immediate effect, but it may be some weeks before you notice the improved condition and strength of your lashes.

For best results, we recommend using Opti Laboratories Growth Treatment daily. With daily use, a bottle will last around 3 months.

Opti Laboratories Growth Treatment provides a temporary increase in the length, thickness, and darkness of eyelashes. This effect will persist as long as you continue using the product.

If you choose to stop using Opti Laboratories, your lash length and thickness will gradually go back to normal over a period of 16 weeks.

Many of our clients use Opti Laboratories Growth Treatment for eyebrow growth and report excellent results. There is a growing body of literature from around the world supporting the safe use of bimatoprost for eyebrow growth.

Our Sun Protect Serum can also be used on eyebrows to protect from sun damage and to promote healthy growth.

Prostaglandins are a group of lipids, or fats, that perform several roles in the body. They're derived from fatty acids and play a crucial role in various biological functions like inflammation, blood flow, and the regulation of hormones. These compounds are produced throughout the body and can exert potent effects on the tissues where they are made.

If you miss a day, just apply it the next evening. Do not double the dose to catch up.

No, applying Opti Laboratories Growth Treatment more than once a day will not speed up eyelash growth and may increase the risk of side effects.

We recommend that users follow the provided instructions, and apply before bedtime.

Yes, you can use mascara or other eyelash products. However, please always apply Opti Laboratories first, and wait until it is completely dry before applying any other products.

The best to apply this growth treatment is at night after you have removed your make up as part of your daily beauty routine.

It is entirely safe to have a lash lift or extensions while using the treatment. The liquid is water based so quickly absorbs into the skin to reach the hair follicles, so there is no lasting residue which could interfere with any perm solution or adhesive.

If you are looking to stop using extensions then we have had many clients grow their natural lashes while using extensions.

If you are having semi-permanent makeup applied to the lash line or eyebrows then we would recommend waiting at least 4 weeks before applying. If the area is still tender or healing is prolonged then we recommend waiting longer, but please get in touch for more specific advice.

Eye colour change is very unlikely. In fact, of over 10,000 Opti Laboratories customers, none have ever reported this side effect.

There have been reports that bimatoprost, the active ingredient of Opti Laboratories Growth Treatment, can change your iris colour (typically making it darker). This side effect is rare when using the treatment for eyelash enhancement. It normally only occurs if you apply the treatment to the eye rather than to the lash line. This is one of the reasons we've carefully sourced specially designed hydrophobic (water-repelling) micro-applicators that make it easy to put the perfect amount onto the exact part of the eyelid required to stimulate your lash growth. In America where this treatment is more common the incidence of iris colour change is considered rare.

Nearly everyone can use the Opti Laboratories Growth Treatment, but some people who have certain eye conditions, like uveitis or macular edema, are pregnant or breastfeeding, or who are allergic to bimatoprost or any of its ingredients should not use it. It's always important to tell us your medical history so we can make sure that it will be safe for you to use.

If you have any further questions before purchase, please feel free to contact us.

No. You should not use Opti Laboratories Growth Treatment during pregnancy because it is unknown whether the active ingredient, bimatoprost, is excreted in human milk. Please, therefore, make sure you inform us if you're pregnant, planning to become pregnant, or are breastfeeding.

Before using Opti Laboratories Growth Treatment, we will ask you if you've had eye surgery, including cataract surgery or laser treatment. We can assess the potential risks and guide you accordingly.

Yes, but you should remove your contact lenses before application. Wait at least 15 minutes after applying the growth treatment before reinserting your lenses, as the solution may absorb into soft contact lenses.

Those under 18 should not use bimatoprost. Its safety and efficacy have not been established in this age group.

Don't worry. Opti Laboratories’ active ingredient, bimatoprost, was originally used as a prescription eye drop for glaucoma, which has been tested extensively for safety when applied directly into the eye. This means the treatment is eye-safe and you do not need to wash it out. However, if your eye becomes red, irritated, or uncomfortable, contact your healthcare provider.

If you accidentally swallow Opti Laboratories Growth Treatment, immediately contact a healthcare professional. The treatment is water based, non-toxic and not poisonous.

We have decades of prior experience from people using bimatoprost for glaucoma. They were applying it onto the eyeball in much greater doses (20 to 40x), often for 20+ years and the experience showed it was tolerated well. The longest Opti Laboratories users have been using it continuously since 2007 without incident.

Use the applicator to apply the liquid along the lashline at the base of the eyelashes. Only use a tiny drop for each application. The skin at your lashline should feel wet, but not flooded.

Apply the liquid to the skin of the brow where you wish to stimulate growth. This should either be at the base of existing brow hair or on the area that you wish to encourage new growth.

Most regrowth happens naturally, but treatments can help to help return your eyelashes and eyebrows to normal.