Lash Science
Lash Science
carly weiss
36. Formaldehyde Fumes in Lash Glue: Should We Be Concerned? (Part 1)
52 minutes Posted Jan 26, 2026 at 4:00 am.
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Show notes
Are the “formaldehyde fumes” from lash adhesive actually harmless… or are we closer to the danger zone than the industry wants to admit?
In Part 1, we break down:
the difference between fumes, gases, and vapors (and which one formaldehyde actually is)
how formaldehyde behaves in the lash room (does it linger? dissolve into skin?)
the World Health Organization’s indoor air guideline for formaldehyde exposure
how Lash Apothecary’s traditional adhesives measure up to that guideline
and why comparisons to fruit, vegetables, or what your body naturally produces are not a relevant comparison to breathing formaldehyde gas
This episode sets the science foundation — and yes, it gets spicy!🌶️
 
Sources: 
https://www.ncbi.nlm.nih.gov/books/NBK612582/
https://pmc.ncbi.nlm.nih.gov/articles/PMC5225186/
https://pubmed.ncbi.nlm.nih.gov/35674514/ 
https://pubmed.ncbi.nlm.nih.gov/22134404/ 
https://www.fda.gov/cosmetics/cosmetic-products/hair-smoothing-products-release-formaldehyde-when-heated