Buyers do not blame sellers they never heard of. When a counterfeit arrives, breaks, or disappoints, the review lands on the listing the buyer thought was yours. The return comes through your metrics. The brand absorbs damage it did nothing to earn.
Counterfeit listings undercut on price, so they often win the buy box or rank on your keywords while they live. Every week of delay is another cohort of buyers forming opinions about your quality based on a product you never made.
Sometimes, with evidence that the purchase came from a counterfeit seller, and it is a slow manual process with no guarantees. The reliable fix is upstream: get the counterfeit listing down before it accumulates buyers, and keep it down.
Counterfeiting shows up in your business metrics, not just on competitor listings: conversion rate, review average, return rate. Enforcement is not a legal luxury; it is defense of the numbers your team is managed against.
Look for a displayed pharmacy licence or accreditation you can verify with the regulator, a real address, and prescription requirements for prescription medicines. Be wary of sites with none of these, prices far below accredited rivals, or stock shipped from unrelated countries.
It is genuine product moved outside authorised channels, often imported from other markets or stored in unknown conditions. It may look perfect while being expired, relabelled, or weakened by bad storage, and it sits outside recall and batch tracking systems.
Do not continue with a pack you believe is counterfeit. An under dosed flea or worm product fails silently and a wrong ingredient can harm without obvious signs. Replace it from a verified source and report the seller with the batch details.
Because they are operating outside the rules that govern prescription medicines. The missing prescription check is not a convenience feature; it is evidence the supply chain is unregulated, and it is one of the clearest signals to buy elsewhere.