As a Professional Lash Artist, Understanding the Basics of Eyelashes Is Essential
1. Structure of Eyelashes
Natural eyelashes consist of two main parts: the hair shaft and the root. Eyelashes typically measure 5–10 mm in length, with the number and length varying between individuals. On average, there are about 100–150 lashes on the upper eyelid, while the lower eyelid has about half that amount. Naturally, we lose around 5 lashes per day, and lashes grow at a rate of approximately 0.1–0.18 mm per day.
Eyelash growth is most active between 10:00 PM and 2:00 AM, which aligns with the peak hormonal secretion period. Getting sufficient sleep during this time can promote eyelash regeneration and growth.
2. Functions of Eyelashes
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Protection for the Eyes
Eyelashes act as protective guards arranged along the edges of the eyelids. They serve as the second line of defense for the eyes. -
Reflex Mechanism
When dust or other foreign objects touch the lashes, the eyelids reflexively close, protecting the eyeball from external intrusion. Additionally, lashes shield the eyes from sunlight, dust, sweat, and other debris, ensuring protection for the cornea and eyeball. -
UV Protection
Eyelashes also help block harmful UV rays from damaging the eyes.
3. Eyelash Growth Cycle
The eyelash growth cycle refers to the natural replacement and renewal process of eyelashes. It is divided into three stages: the growth (active) phase, the transitional phase, and the resting phase.
Among all types of hair, eyelashes have the shortest lifespan, averaging 3–6 months before being replaced. On average, 2–5 lashes fall out per day during the shedding phase. Growth occurs as follows:
- 70% of the lash length grows within the first month.
- 90% grows by the second month.
- Full growth (100%) is reached by the third or fourth month.
The number of lashes and their texture vary from person to person, as does the growth cycle. For example, when a lash falls out, the follicle does not immediately produce a new lash. Instead, after accumulating sufficient nutrients during the resting period, new lashes begin to grow.
Understanding this natural cycle allows lash artists to educate their clients and help them avoid misunderstandings regarding lash shedding.
4. Relationship Between Lash Extensions and Natural Lashes
It is crucial to consider the natural lash growth cycle when applying extensions. During the resting phase, lashes naturally shed, similar to how hair falls out. If lash extensions are applied during this time, clients unfamiliar with the lash growth process may mistakenly believe that the extensions caused the shedding. This misunderstanding could negatively affect their impression of the salon or lash artist.
In rare cases, clients may feel that their natural lashes are shorter or fewer after removing extensions. This could be due to the lashes being in their resting or early growth phases, hormonal imbalances, or stress disrupting the natural growth cycle.
Localized lash loss may also result from stress or physical health issues.
For this reason, professional lash artists must have a thorough understanding of lash structure and the growth cycle. This knowledge helps them explain natural lash shedding to clients, ensuring that clients do not mistakenly associate natural biological processes with poor lash extension outcomes.
Conclusion
By mastering the basics of eyelash anatomy and the natural growth cycle, professional lash artists can provide better services and educate clients on proper lash care. A knowledgeable lash artist not only enhances the client’s experience but also builds trust and credibility in their expertise.
