UFC's Iasmin Lucindo Suspended 9 Months for Mesterolone

UFC strawweight contender Iasmin Lucindo has received a nine-month suspension from Combat Sports Anti-Doping, the UFC's official anti-doping partner, after testing positive for the banned anabolic agent mesterolone. The 24-year-old Brazilian fighter, currently ranked seventh in the division, provided an out-of-competition sample on September 24, 2025, in Feira de Santana, Brazil, that led to her removal from a scheduled bout against tenth-ranked Gillian Robertson on December 13, 2025, at UFC Vegas 112 in Las Vegas.

CSAD announced the suspension on Wednesday, retroactive to the date of the positive test and set to expire on June 24, 2026, making Lucindo eligible to return to competition in the summer. The organization stated that Lucindo cooperated fully with the investigation, which included a detailed interview and submission of official documentation from a Brazilian pharmacy where she obtained compounded dietary supplements. According to CSAD, the evidence indicated that Lucindo did not intentionally use mesterolone to gain a performance advantage, and her testing history supported low-level exposure to the substance.

The positive finding stemmed from supplements purchased at...