Professional eyelash extensions go beyond curl and density – they're built on product safety and strict hygiene standards

Recent test results released by the Consumer Council and the Shanghai Consumer Protection Commission on multiple eyelash extension glues have shocked consumers and sparked widespread discussion. The tests revealed that some samples contained high levels of "free formaldehyde" – a substance known to be highly irritating and potentially carcinogenic – as well as the banned ingredient "hydroquinone." Some product ingredients were even found to be similar to industrial "super glue." Suddenly, the question "Can eyelash extensions cause cancer?" became a trending topic.

However, as professional beauty practitioners or students preparing to enter the industry, we must recognise a critical truth: While the market is flooded with products of varying quality, the real core issue is whether the eyelash technician possesses the professional ability to identify product safety, follow standardised procedures, and manage risks.

"Eyelash extensions" are far more than just a technical skill of attaching fake lashes to natural ones – it is a rigorous discipline encompassing ocular anatomy, product chemistry, salon-grade hygiene and disinfection, and client allergy risk management. This article starts from this news event to explain why obtaining iTEC international eyelash certification is essential for protecting both clients and lash artists, and how LBEDU's CEF (Continuing Education Fund) courses uphold international safety standards.

1. The Chemical Truth Behind the News: Why Can Eyelash Glue Be Toxic?

Working in the highly sensitive area around the eyes means that even minor chemical irritation can cause acute conjunctivitis, corneal burns, or severe allergic reactions. Poor‑quality eyelash glues primarily pose two hidden dangers:

The main ingredient in eyelash extension glue is "cyanoacrylate." Low‑quality products use industrial‑grade raw materials of extremely low purity to cut costs, or add unstable preservative formulas, causing the glue to continuously release free formaldehyde during the curing process and storage. Long‑term inhalation or exposure not only causes eye irritation for clients, but the people most affected are often the lash technicians who work in close proximity for extended periods every day.

Hydroquinone is listed as a prohibited or strictly restricted ingredient in cosmetic regulations across many countries. Some unscrupulous manufacturers illegally add it as an antioxidant or preservative to extend shelf life. This ingredient is cytotoxic and can easily cause skin cell damage and severe allergic reactions.

2. Understanding Product Safety Labels: MSDS, SGS, ISO & GMP Explained

As a professional eyelash technician, mastering application techniques is only half the story – you also need the ability to interpret product safety documentation. The following four certifications are the core indicators for determining whether an eyelash glue or related product is safe and compliant:

An MSDS is a chemical safety document provided by the product manufacturer, detailing ingredients, hazard identification, first‑aid measures, storage conditions, and disposal methods. Professional lash technicians should proactively request and read the MSDS before using any glue, confirming that the product contains no banned ingredients and that free formaldehyde levels comply with international standards. This document is not only a product safety ID card but also a crucial legal reference in case of consumer disputes.

SGS is a world‑leading inspection, verification, testing, and certification company, and its test reports carry high credibility. Eyelash products that have passed SGS testing have been verified for heavy metal content, microbiological contamination, formaldehyde release, and other safety indicators. Consumers and lash technicians should prioritise products that come with SGS test reports and avoid using unverified or questionable products.

The most relevant ISO standard for eyelash products is ISO 22716 – Cosmetics Good Manufacturing Practices (GMP). This certification ensures that products are manufactured under strict quality management and hygiene standards. Manufacturers with ISO certification operate in environments where production, raw material control, and process stability meet international requirements, significantly reducing the risk of contamination or quality inconsistency.

GMP certification is a basic quality threshold for the cosmetics and medical device industries. A factory with GMP certification demonstrates that its production environment, personnel hygiene, equipment cleaning, and quality control all follow standardised operating procedures, ensuring batch‑to‑batch consistency and safety. When purchasing eyelash glue, consumers should prioritise products bearing GMP certification numbers and avoid products with unclear ingredient labelling or unknown origins.

Professional eyelash technicians should develop the habit of "checking the MSDS, verifying SGS reports, and confirming ISO/GMP certifications" – safeguarding both client and personal health from the very source.

3. Technique vs Safety: The Fundamental Difference Between Crash Courses and iTEC International Programmes

Many "2‑day crash courses" only teach how to apply lashes quickly, glossing over glue chemistry, ocular anatomy, and disinfection protocols. In contrast, the iTEC international system, regulated by UK Ofqual, places "Health & Safety" at its absolute core.

4. iTEC International Safety Standards: Four Protective Lines for Professional Lash Artists

At LBEDU Luster Beauty International Education and Training Institute, our eyelash courses (including CEF‑subsidised programmes) follow the iTEC international examination syllabus and strictly enforce the following four safety standards:

• Line 1: Accurate Ingredient Screening & MSDS Interpretation
  Students must learn to read MSDS (Material Safety Data Sheets) to select compliant black glues that meet EU/health authority standards – free from banned toxic preservatives – eliminating substandard products at the source.
• Line 2: Mandatory Patch Test SOP
  The iTEC system requires a standardised allergy test 24‑48 hours before a full application for new clients. This is not only a responsibility to client eye health but also the best protection against medical and legal disputes.
• Line 3: Thorough Ocular Anatomy & Contraindication Assessment
  In‑depth study of eye structure, meibomian gland function, and common eye conditions (e.g., dry eye, conjunctivitis, demodex mite infestation). Professional lash artists can provide honest medical‑grade advice and refuse service when conditions are unsuitable.
• Line 4: Salon‑Grade Temperature/Humidity Control & Cross‑Infection Prevention
  Eyelash glue curing and volatile gas release are closely related to environmental temperature and humidity. Courses teach precise humidity control to reduce irritating vapour, along with strict single‑use tool protocols or autoclave sterilisation standards.

LBEDU emphasises both theory and practice, ensuring students master safety standards that meet international qualification requirements

5. Why Choose LBEDU? Government‑Recognised Qualifications & CEF Subsidies

As a government‑registered institution (School Registration No. 854), LBEDU is dedicated to professionalising and regulating Hong Kong's beauty industry:

• CEF Subsidies: Eligible students can receive up to 80‑85% tuition reimbursement for designated eyelash courses, significantly lowering the barrier to professional training.
• Direct Pathway to iTEC International Qualification: Course content directly prepares students for the iTEC Level 3 international eyelash diploma – graduates earn both local and internationally recognised credentials.
• Authentic Teaching Materials: All glues and tools used in class are strictly vetted for safety, ensuring a safe, non‑toxic learning environment.
• Career Development & Compliance Guidance: Beyond technical skills, we provide client consent form templates and salon hygiene compliance guides to help you launch your career or business.

Industry Observation: The More Chaotic the Market, the More Professionalism Shines

Frequently Asked Questions

Conclusion: Invest in Professional Qualifications – Build a Sustainable Beauty Career

The eyelash glue testing news is another wake‑up call for the beauty industry: business models built on "low prices" and "cheap, substandard materials" are not sustainable. Only by adhering to safety, professionalism, and quality can you earn the respect of the market.

Obtaining iTEC international eyelash certification is not just about learning a beautiful application technique – it's about building a solid safety barrier between you and your clients. Let LBEDU guide you through your first steps toward professional practice, helping you become a respected and trusted authority in the industry!