Amazon has launched an investigation into the dietary supplement brand Drop RX, owned by Dr. Nicole Saphier, President Donald Trump's nominee for surgeon general.
The probe follows questions about product safety and ingredient transparency.
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Several Drop RX listings were removed or became unavailable on the platform by Thursday as the review proceeded.
Medical professionals and consumer advocates raised concerns about Saphier's sale of loosely regulated supplements.
One formulation contains kava kava root, an ingredient banned by the US military and linked to liver damage risks by the FDA since 2002.
Criticism from Health Experts
Dr. Peter Lurie of the Center for Science in the Public Interest criticized the involvement of wellness industry figures within the Make America Healthy Again (Maha) movement.
"Nobody who prides themselves as rigorous about science is in the supplement business," he said.
Lurie noted that dietary supplements do not face the same rigorous testing as pharmaceuticals, leading to potential failures or problematic ingredients.
He added that Saphier's endorsement of these products reflects on the incoming administration's scientific approach.
Richard Carpiano, a public health scientist at UC Riverside, expressed concern that a nominee for a trust-dependent position marketed pseudoscientific items.
"If she's willing to push these kinds of wellness products, what else might she push along the way?"
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he asked.
White House Defense and Marketing Videos
The White House defended Saphier, citing her medical career at Memorial Sloan-Kettering and her alignment with the administration's healthcare goals.
Spokesperson Kush Desai said she would be "a powerful asset for President Trump" in delivering the Maha agenda.
Saphier previously used social media to market Drop RX products.
In a June 2025 video, she linked dietary habits to cognitive health, claiming her Focus supplement contained rosemary and sage to promote brain health.
In an August 2025 video, she promoted a product for intimacy and hormonal support.
Independent testing organizations identified transparency issues. Tod Cooperman of ConsumerLab.
com said the brand failed to provide specific dosage breakdowns for individual organic extracts, which is standard for most supplements.
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Amazon stated it is continuing its investigation and will take appropriate remediation actions.