Methacrylic Acid is a chemical compound, an alpha,beta-unsaturated monocarboxylic acid.
Chemical name 2-methylprop-2-enoic acid

Molecular Formula C4H6O2

Significant substances present or used in the production method:
acetone cyanohydrin, sulfuric acid.


Safety
The use of methacrylic acid should be safely authorised by persons trained and instructed to ensure that there is no skin contact.
https://journals.sagepub.com/doi/abs/10.1080/10915810500434191

What it is used for and where
Cosmetics
Film-forming agent. It produces a continuous ultra-thin film with an optimal balance of cohesion, adhesion and stickiness on the skin or hair to counteract or limit damage from external phenomena such as chemicals, UV rays and pollution.

Nail sculpting. This ingredient is used in the extension and modification of the natural nail.
Synonyms: EC number 201-557-4
UNII 2286E5R2KE
DTXSID2021781

CAS: 79-41-4