November 12, 2025 By: Asa Waldstein

Online Product Marketplace Cited for Non-Compliant Products

Takeaway -

Companies are responsible for the products they distribute

FDA issued a warning letter to an online marketplace that sells international products, including Korean skincare and miscellaneous household items, for distributing motion sickness patches that contained undisclosed drug ingredients. This is an interesting letter which shows that companies are responsible for the products they distribute. Let’s see what we can learn.

Undisclosed drugs in product: FDA tested the product and found it to contain “diphenhydramine, diphenhydramine N-oxide, and diclofenac” that were not listed on the label, which is very concerning. It also appears similar products are sold on marketplaces like Amazon, so expect to see more warning letters to other platforms selling these products. If you are an online distributor, now is the time to ensure all products you distribute are compliant and untainted.

Fulfillment = responsibility. In this letter FDA states that the products were fulfilled by the company, rather than the items being drop-shipped by vendors. In my view, this “handling” aspect is significant because it defines the company’s level of responsibility for the products. This raises the question of whether marketplace platforms that don’t physically  touch the products face a lower risk of scrutiny from distributors. FDA has a history of citing marketplaces for the products they handle, as I wrote about in this 2023 Amazon-related post

From warning letter. “Each of the products discussed in the warning letter was “fulfilled” by IBSPOT; your product listings for each of these products stated, “Fulfilled by IBSPOT.”

Disease claims: FDA also cited disease claims on the product labels.

From warning letter. “Relieve the vomiting, nausea, dizziness, anorexia, and other sickness symptoms caused by taking cars, ships, planes, trains, and other means of transport.”

Read the full warning letter here

Disclaimer: The educational information provided here is for informational purposes only. Contact an attorney for specific legal advice. Rule #1 in compliance is to ensure marketing is truthful and not misleading.

Written by

Asa Waldstein
Asa Waldstein
Asa Waldstein is a 24-year veteran of the dietary supplement industry, with experience spanning manufacturing, marketing, and regulatory compliance. He is the principal of Apex Compliance, a software company dedicated to streamlining regulatory marketing compliance for the dietary supplement and natural products sectors. Asa also leads Supplement Advisory Group, a boutique consultancy focused on marketing risk analysis, labeling, and practical compliance strategies for websites and social media. Asa has helped oversee three FDA GMP inspections with no 483s and was honored with the 2023 AHPA Herbal Hero Award and the 2024 What's Up Supps Policy and Change Agent Award. He currently serves as Chair of the American Herbal Products Association’s (AHPA) Technology & AI Innovation Committee.