Is the word pincéis the same in Brazilian and European Portuguese?

Yes.

The word "pincéis" is identical in both Brazilian and Continental Portuguese in terms of spelling, grammar, and meaning (referring to paintbrushes, makeup brushes, or grooming brushes). The only difference is in pronunciation: Brazilian Portuguese generally uses more open vowels and a more melodic rhythm, while Continental Portuguese tends to use more closed or reduced vowels and a more consonant-heavy, rhythmic stress.

Brazilian Portuguese Examples:

1. Preciso comprar novos pincéis para a aula de pintura. (I need to buy new brushes for the painting class.)
2. Os pincéis de maquiagem estão muito limpos. (The makeup brushes are very clean.)
3. Ela usa pincéis bem fininhos para fazer o delineado. (She uses very thin brushes to do her eyeliner.)
4. Cuidado para não estragar os seus pincéis. (Be careful not to ruin your brushes.)
5. Os pincéis de barba ficaram secos de tanto uso. (The shaving brushes became dry from so much use.)

Continental Portuguese Examples:

1. Estou a usar estes pincéis para a minha obra. (I am using these brushes for my work.)
2. Tens de lavar os pincéis depois de pintar. (You must wash the brushes after painting.)
3. Os pincéis de maquilhagem que comprei são excelentes. (The makeup brushes I bought are excellent.)
4. Estás a limpar os pincéis com água e sabão? (Are you cleaning the brushes with soap and water?)
5. Deixei os pincéis em cima da mesa. (I left the brushes on top of the table.)