Eyelash Extension Adhesive (Cyanoacrylate Fumes, Formaldehyde Release, Allergic Reaction, Poorly Ventilated Salon) — safety profile
Moderate riskEyelash extension adhesives are primarily based on ethyl cyanoacrylate (85-98% by weight) — the same chemical family as industrial super glues.
What is this product?
Eyelash extension adhesives are primarily based on ethyl cyanoacrylate (85-98% by weight) — the same chemical family as industrial super glues. During polymerization, cyanoacrylate releases formaldehyde as a degradation byproduct, with emissions measured at 0.02-0.18 ppm in salon air during application (J Occup Environ Hyg, 2019). A single lash extension appointment requires 80-150 individual lash bonding points applied over 1.5-3 hours, with the adhesive curing approximately 2mm from the eye surface. Contact dermatitis and allergic reactions are the most common adverse events — a 2020 British Journal of Dermatology survey found that eyelash extension adhesive is now the second most common cause of cosmetic-related allergic contact dermatitis in the UK, after hair dye (PPD). The US eyelash extension industry generates approximately $1.6 billion annually (2023), with an estimated 8 million Americans wearing lash extensions regularly. FDA classifies lash adhesives as cosmetics — no pre-market safety testing required. Carbon black (CI 77266) is used as pigment in dark adhesive formulations, and some budget adhesives contain methyl cyanoacrylate (stronger adhesion but higher formaldehyde release and corneal toxicity risk).
What's in it
Click any compound name for its full safety profile, regulatory consensus, and exposure data.
Adhesive Base
Degradation Byproduct
Frequently asked questions
No FAQs generated.
Look up Eyelash Extension Adhesive (Cyanoacrylate Fumes, Formaldehyde Release, Allergic Reaction, Poorly Ventilated Salon) in the body app
Search by ingredient, browse by category, or compare to alternatives in the live app.
Open in body View raw API dataReference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →