Senator Imee Marcos on Tuesday publicly challenged her brother, President Ferdinand Marcos Jr., to undergo a hair follicle drug test following claims, which she echoed, that the First Family is involved in illegal drug use.

The senator issued the dare after her nephew, House Majority Leader and Ilocos Norte 1st District Rep. Ferdinand Alexander “Sandro” Marcos, rebuffed her accusations, saying such claims were uncharacteristic of a “true sibling” and fueled unnecessary controversy.

In a Facebook post, Imee responded sharply to her nephew’s remarks, saying the narrative that she is not a “true sibling” was being amplified to discredit her.

“Gustong paingayin ni Sandro ang usap-usapang hindi ako tunay na kapatid. Isa lamang ang solusyon: Magpapa-DNA test ako, magpa-hair follicle test sila,” she wrote.

Hair follicle testing, considered more comprehensive than standard urine tests, can detect drug use over a longer period.

Earlier, Palace Undersecretary Atty. Claire Castro reiterated in an interview with DZRH’s Dos Por Dos that such allegations have been debunked, and the lies pertaining to the President’s use of “illegal drugs” are repeated because critics cannot find anything negative about Marcos.