Mattresses - Used mattresses can harbor germs, allergens, and bed bugs.
Child Car Seats - Safety standards change frequently, and used car seats may not meet current safety regulations or could be damaged.
Helmets - Helmets should be replaced after any impact, so used ones may not offer adequate protection.
Underwear and Swimwear - Hygiene concerns make these items risky to buy second-hand.
Electronics without Testing - Electronics might be outdated, damaged, or missing parts, and their functionality may be questionable.
Expired or Opened Makeup and Skincare Products - These can harbor bacteria and may cause skin irritation or infections.
Cribs and Baby Furniture - Safety standards evolve, and older models may not meet current safety requirements.
Cookware with Teflon Coating - Older cookware may have damaged coatings that release toxic chemicals when heated.