Tosylamide Formaldehyde Resin (TSFR) 4 May 2021 Tosylamide Formaldehyde Resin (TSFR) – A polymer that improves wear and durability in nail polishes but is now rarely used in nail polishes. Related Articles: 7 free! 10 free! 99 free! What is the ‘deal’ here?The 3-Free Myth
