Eyelash growth has four stages: growth, resting, shedding and re-growth. Your lashes continuously cycle through these four stages. As we age, eyelash follicles (the openings in the skin through which the lash grows) can slow or stop producing new lashes altogether.

Aside from age, there are other reasons someone might not have enough lashes. These may include:

• Scrubbing or rubbing eyelashes too hard, which can damage the skin and cause delicate eyelashes to fall out
• Heredity
• Medical conditions
• Some medications and treatments

As it relates to Eyelash Extensions, If there is too much weight from the lashes and/or too much glue, your natural lash could break or pull out altogether and therefore cause damage to the EXISTING lash hair follicle.  We at Beauty Body Being do not use lashes that are too big or heavy for your natural lashes. We also know when NOT to prescribe lashes for a client who may have week or perpetually thinning lashes. If lash loose occurs, they will grow back in full in the time span of 7-8 weeks.  You and your natural lashes should be fine!

The good news here is, that eyelash extensions for the vast majority will only cause temporary damage if any damage occurs at all.

(information from healthywoman.org and lashdirect.com)