It is possible that some clients have a stronger follicle direction on one eye. If this is the case, you might need to notate this on the client card and compensate for this when they come in by processing the stronger eye for longer. This can be a genetic predisposition say for instance when you have a cowlick on one side of your head but not the other – the direction of your hair is harder to style on one side than it is on the other and maybe more naturally resistant to the application.
Were you specific enough about your timing? Lash Lamination results can be affected by processing one eye for longer even just by very short moments (30seconds – 1 minute), if you applied the lotion to one eye and the processing time began, then you waited between applying to the second eye, the first eye will have a stronger lamination or perhaps even be over processed. Be very specific about your timing.
Lash placement on the rod – if you have not symmetrically placed the lashes on the rods so that both eyes are the same and complimentary then this will be evident when the rods are removed and the lashes are dried. Taking a photo of your client’s eyes open before you begin the lamination process and refer to their iris location once the rod is on may help your lash placement.
Lash Lifting adhesive – be mindful of your usage, this product (even though it is water soluble) can create a barrier between the lash and the lamination or setting lotion. The adhesive has a setting time that allows you to roll the lashes up onto the silicone rod, however, sometimes the adhesive might set before all your lashes are up. You can use a small amount more of adhesive, but you need to be mindful of the placement of the adhesive – if you are coating the already well-placed lashes with adhesive those lashes might not laminate.