Buying guide
Check who is selling, how the reviews are distributed, and whether the certifications that should exist actually check out.
On many marketplaces a single product page can be supplied by different sellers. What arrives at your door is decided by whoever ships it, not by the brand name at the top of the page. Find the seller name before buying, check whether it is the brand itself or an authorised reseller, and look at what else that seller carries. A storefront selling cosmetics, car parts and children's toys at once is not in a position to stand behind any of them.
A 4.5 on its own tells you very little. Look at four things instead. Whether reviews arrive steadily or in bursts on a handful of days. Whether the negative ones describe the same defect or unrelated problems. Whether the text describes this specific product or could be pasted onto anything. And whether the listing pools reviews across many sizes, colours or even different products. That last one is the easiest to miss, and once feedback is pooled the score stops meaning anything.
Electrical products sold in the United States normally carry a UL or ETL mark, which reflects actual safety testing, and an electrical item without one is not worth the risk. Textiles may carry OEKO-TEX and foam may carry CertiPUR-US. One phrase deserves particular caution: registered with the FDA is a filing, not an approval, and sellers who present it as an endorsement are misleading you. A certification counts when the number can be looked up, not when a logo has been printed on the box.
When a product costs a third of comparable items, start from the assumption that it is a different product rather than a bargain you found. Frequently the listing is actually for an accessory, a sample or a smaller size, and sometimes the link has been swapped. A related pattern is a struck-through original price that stays there permanently and never applied to anything. Real promotions have a defined period and a defined discount. A discount that runs all year is not a promotion, it is a pricing style.
Anything ingested, anything on skin or mucous membranes, anything for infants, and anything with a battery or a plug. In these four, the risk is asymmetric: the money you save is nowhere near the cost of being wrong. Supplements, cosmetics, children's products, chargers and batteries are worth buying from the brand or an explicitly authorised channel. That is not caution for its own sake. It is that these are the categories where there is no way to fix it afterwards.
The Consumer Product Safety Commission publishes recalls for household and children's products, and the FDA publishes recalls for food, drugs and medical devices. Both are free to search, and looking up a brand and model takes about a minute before you buy. We also sync recall data from both of those public sources on a schedule and re-check products already listed on the site against it.
A recommended slot needs a rating above 4.4 and at least 50 reviews. Below 4.2 the product returns to review and below 4.0 we stop recommending it. Negative feedback above 8% removes homepage placement and above 15% removes the product. Any serious signal on counterfeits, quality, safety or after-sales support pauses it immediately, whatever the rating says. Price anomalies flag a product for manual re-check rather than pulling it automatically, because a bad price scrape and a bad product are different problems and removing a good listing by mistake has a cost too.