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Don’t buy these baby items used!
Pregnancy

Don’t buy these baby items used!

2 min readWeek 32
Key takeaways
2 min
  • Never buy used car seats, mattresses, or breast pumps as they can harbor dangerous bacteria or have hidden structural damage that compromises safety.
  • Avoid secondhand rubber bath toys and opened skincare products since they can contain harmful bacteria and expired ingredients that cause skin irritation.
  • Skip used shoes and damaged toys with cracks or tears, as they can spread fungus or create choking hazards for curious babies.
  • Prioritize buying these 7 essential items new while safely purchasing other baby gear secondhand to save money without compromising safety.
  • Always inspect any baby item for recalls, expiration dates, and structural integrity before making purchasing decisions.

Never buy these baby items used: car seats (hidden damage risk), mattresses (bacteria and firmness issues), breast pumps (milk residue bacteria), rubber bath toys (bacterial growth), opened skincare products (shortened shelf life), shoes (fungus transfer), and damaged toys (safety hazards).

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In most cases, buying used items is a great money-saving strategy (and is environmentally friendly). However, there are a few baby items you definitely want to buy new. Here’s a list you should consider.

Mattress

Used mattresses can harbor dust mites and funky smells. A mattress may also lose its shape, and babies need a flat, firm surface to sleep on [1].

Rubber bath toys

Between grimy bathwater and baby’s drool, that cute rubber ducky can become a hotbed of potentially harmful bacteria [2]. 

Toys with cracks, tears, and defects

Everything in your baby’s curious and active hands should be sturdy and safe. If it’s cracked, stitched up, glued, or mended in any way, your baby can tear it up and possibly harm themselves in the process [3]. 

Opened skincare products

Partially used baby lotion and diaper cream are a no-no. The shelf life of baby toiletries tends to be short after they are open, even if they haven’t hit their expiration date. They can develop unpleasant smells and sometimes cause skin irritation.

Shoes

Every child’s foot is different, so not every shoe is appropriate for every child. In addition, shoes can be hard to disinfect, so if they have any fungus, it can linger even after cleaning [4].

Car seat

Even if it appears in good condition, a car seat can have cracks on the inside. Any defect automatically makes a car seat unsafe [5]. 

Milk pump

If a breast pump is not thoroughly washed, milk residues can remain in the tubes, and bacteria can multiply, which may pose a danger to your baby and your breasts [6].

Frequently asked questions

Never buy used car seats, mattresses, breast pumps, rubber bath toys, opened skincare products, shoes, or damaged toys secondhand. These items can harbor bacteria, have hidden damage, or pose serious safety risks to your baby.

Used car seats may have invisible internal cracks, missing parts, or could have been in an accident. Even minor damage can make a car seat completely unsafe and ineffective in protecting your child during a crash.

No, used baby mattresses can harbor dust mites, bacteria, and unpleasant odors. They may also lose their firmness over time, which is dangerous since babies need a flat, firm sleeping surface to reduce SIDS risk.

Safe secondhand baby items include clothing, books, high chairs, strollers, and toys in good condition without cracks or damage. Always check for recalls and ensure items meet current safety standards before purchasing.

Yes, opened baby skincare products have shortened shelf lives and can develop bacteria or cause skin irritation even before their expiration date. Always buy baby lotions, creams, and toiletries new to ensure safety and effectiveness.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

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Medically reviewed content

Reviewed by healthcare professionals · Updated June 4, 2025

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