Confident smiling young man pointing up on chemical structure of testosterone molecule drawn on chalkboard background

---

Size: 5760px × 3840px
Photo credit: © Vadym Drobot / Alamy / Afripics
License: Royalty Free
Model Released: Yes

Keywords: anabolic, attention, attractive, background, beard, bearded, black, blackboard, board, casual, chalk, chalkboard, checkered, cheerful, chemical, chemist, chemistry, confident, drawing, element, formula, glasses, graphic, handsome, happy, hipster, hormone, idea, illustration, male, man, medical, molecular, molecule, plaid, posing, professor, research, science, scientific, scientist, shirt, smiling, standing, steroid, student, studio, testosterone, thought, university, wall, young