The serum only needs to be applied once nightly onto clean, dry eyelashes. This will allow the serum to be absorbed undisturbed.

In many cases, there are visible results in as little as 6 weeks of nightly application however, for maximum results, you need to be applying the serum consistently for a minimum of 12 weeks.

You want to make sure that the lash roots are fully coated. Typically, one stroke per eye is sufficient but there is no harm in using more than one stroke to ensure full coverage.

One 3ml bottle of The Optometrists Blend Serum will last approximately 3 months of daily application. This will vary depending on how much you are applying of course. We advise discarding the bottle, 6 months after first use.

Please see the delivery and returns page for more information

No. This is a typical side effect of using serums which contain prostaglandin analogues (a chemical used in the management of glaucoma). The Optometrists Blend Lash Growth Serum is 100% Prostaglandin free.

The serum is applied along the roots of the upper eyelashes. Lower lash application is not necessary unless you wish to do so.

our serum is made with natural ingredients designed to be gentle on sensitive skin. However, we recommend conducting a patch test to ensure you do not have an allergy to any of the ingredients.

A patch test can be conducted on any part of your skin. We would recommend a sensitive area like the neck. Make sure the skin is clean and free of other products to ensure an accurate test. Wait about 24 hours to check for any signs of skin sensitivity. If no irritation occurs, the serum is safe for you to use.

Your lashes will return to their original, pre-lash treatment state. This is because our lashes naturally regenerate every three months and it is why consistent application is important for best results.

Whilst our optometrists themselves, use and have used the serum consistently whilst pregnant without any side effects, we must advise that you do not do so until you have sought advise from your doctor. The same applies if you are under the age of 16 or breastfeeding.

Mascara, eyeliner, etc will not affect your lash growth results using our serum as long as you are sure to remove the makeup before applying the serum to your lashes. This will allow proper absorption throughout the night.