The Natural Lash Growth Cycle

Eyelashes, like scalp hair, go through a multi-stage growth cycle consisting of three phases:

• the growth phase (anagen),
• the transitional phase (catagen),
• and the resting phase (telogen)..

Because at any given time most lashes are in the resting phase, a certain degree of lash shedding is physiologically normal. The issue arises when lashes begin to break excessively or fall out much faster than they are able to regrow.

Mechanical Stress as a Primary Cause

One of the most common reasons for lash breakage is mechanical stress. This includes, among others:

• frequent eye rubbing
• improper use of eyelash curlers
• aggressive makeup removal
• pulling or tugging on lashes while removing mascara or eye makeup

Such stress weakens the hair shaft and leads to micro-damage of the keratin structure. As a result, lashes become brittle, unstable, and may break even under minimal pressure.

Cosmetics and Chemical Factors

Certain cosmetic products can significantly worsen lash condition. The most common include:

• waterproof mascaras with a high solvent content
• expired or microbiologically contaminated cosmetics
• eyelash serums with overly aggressive concentrations of active ingredients
• improperly performed lash lifts

Chemical reshaping treatments, such as lash lifting or perming, interfere with the internal structure of the lash. Without proper aftercare, they may lead to dryness, loss of elasticity, and ultimately lash breakage.

Nutrient Deficiencies and Hormonal Factors

Systemic factors also play an important role. Deficiencies in biotin, iron, zinc, or protein can negatively affect lash growth. Hormonal fluctuations—related to stress, thyroid disorders, or general hormonal changes—may have a similar impact.

In such cases, lash breakage or shedding is often a secondary symptom rather than the root cause of the problem.

Inflammation and Eye-Related Conditions

Chronic inflammation of the eyelid margins, such as blepharitis, can damage the lash follicles. Allergic reactions and frequent eye irritation also weaken the foundation of lash growth. If left untreated, these conditions may lead to thinning or gaps along the lash line.

How to Effectively Prevent Lash Loss

Prevention of lash breakage and shedding is based on three key pillars:

• gentle handling of the eye area
• the use of high-quality, well-tolerated cosmetic products
• regular care with regenerating ingredients

Products containing keratin, panthenol, or peptides can strengthen the lash structure and improve resilience. Equally important is a gentle cleansing routine that avoids excessive friction.

When to Consult a Doctor

If lash loss occurs suddenly, affects only one eye, or is accompanied by skin changes, a dermatological or ophthalmological consultation is recommended. In rare cases, autoimmune conditions or dermatological disorders may be responsible and require specialized diagnosis and treatment.