Ten synthetic hair products were tested during the study and several of them tested positive for harmful chemicals such as ...

Ten different synthetic hair products from seven brands were tested in this study. Nine of the ten hair products contained lead. Some of the products also contained other harmful chemicals that ...

FILE - A hairstylist braids the hair of a girl in foster care at Guardian Angels Residential Treatment Center on Tuesday, Feb. 11, 2025 in Houston. (Brett Coomer/Houston Chronicle via Getty Images) ...

UK) and PMMA (Sigma-Aldrich, UK) in 1,2-dichlorobenzene (Sigma-Aldrich, UK ... not all material might dissolve during the powder preparation (Murthy, 2022). FIGURE 4. Contact angle measurements vs.

Department of Chemistry and Technology of Functional Materials, Chemical Faculty, Gdansk University of Technology, G. Narutowicza Str. 11/12, 80-233 Gdansk, Poland ...