Whatever brand of products you use, you should always ensure that you use them correctly and follow the manufacturer’s instructions

The extension should always compliment the natural eyelash and should be approximately a third longer. If the lash is too long it will affect the longevity of the treatment and could weaken the natural eyelash. The colour and tone should also match the client’s natural eyelashes otherwise they will look un-natural and are unlikely to suit the client. 

Not only should you look at the length of the lashes, but also the thickness and curvature, and select lash extensions which compliment this.

The shape and position of the eyes will also affect how you apply the lashes. If the client has small eyes, you should apply medium length lashes on the outside, shorter on the inside and longer lashes in the middle of the eye.

Close-set eyes require a mixture of medium and long on the outside, making them gradually shorter as they reach the inside. Medium length lashes should be placed on the inside of wide-set eyes.

There are two main working methods for applying individual lash extensions. The first allows the application to start on the outside of the eye working in with intervals between each application. Each lash application should be alternated between each eye. This can help to create symmetry of both eyes as you are applying lashes in the same places on after the other, however, this can sometimes be difficult to balance.

Another working method is to work through one eye completely before moving on to the other. This begins in the middle of the lash line before moving to the outermost lash, and then halfway between the two, and then halfway between the two again. This can be a harder look to replicate on the other eye and lashes that are still drying can get knocked by continually working on others around it. However, this can make for a quicker application if enough care is taken.

The positioning of the lashes should be spaced along the lash line to create a balanced effect. If the lashes are too close together, they can adhere to each other during the treatment.

Only one lash should be applied to each eyelash to prevent any extension becoming too heavy for the natural eyelash. Should this happen, the growth of the natural eyelash may be affected, and it could cause a loss of eyelashes.

If you encounter any problems during the treatment these can easily be resolved. Any excess adhesive on the lashes should be removed immediately using an applicator. If the adhesive has been given chance to dry you will need to separate the lashes using a small applicator covered in solvent.

If the lashes are crossing this is probably because the lashes are too long, and so may need replacing with a shorter length. It may also be due to the lashes be applied too high up the natural eyelash, and so will need moving closer to the base.

If lashes are coming off, then it is most likely that not enough adhesive has been applied. This could also mean the eyelashes were not cleansed properly or the lash being incorrectly placed on the eyelash.