10 Baby Products You Should Never Buy Second Hand

While we support upcycling and repurposing older goods for a fresh new purpose there are certainly some considerations that should be made beforehand. 

Below we've compiled a list of baby products you should never buy second hand. We also explain the reasons behind avoiding these purchases as well. 

Used Baby Mattresses

Baby crib mattresses should not be purchased second hand. While most are wipeable, it’s much better to just get a new crib mattress. In fact, it’s not legal to sell a used crib mattress in the US. More importantly, used mattresses may not have the same density and firmness as newer mattress. To avoid unnecessary dangers like SIDS (sudden infant death syndrome) or harmful chemicals used in the production or older mattresses it's best to opt in for a new baby mattress. 

TIp - For the same reasons it's best to avoid used cribs as well. 

Used Baby Mattresses something you should not buy

Used Car Seats

The rules for car seats change all the time and you never know whether the person before you had a wreck with the car seat, or whether it’s been cared for properly. You can buy a safe car seat inexpensively by looking for sales. Also, some car insurance companies offer approved car seats at a discount, so call your insurance company to find out if they offer this benefit. 

Tips : If you absolutely must reuses or purchase and old car seat always have the seat inspected by a safety officer. 

Used Breast Pumps

It might seem obvious, but many people don’t realize the danger of using a used breast pump. It’s very hard to fully clean them, and diseases can be transmitted through breast milk. Just save yourself the trouble and buy a brand new one.

Used and Open Baby Formula

Sometimes people have extra formula and sell it. It could be perfectly fine, but you don’t know what someone you don’t know is doing to things without your knowledge. It’s not worth it to buy it used. If you know someone who wants to give you some formula that isn’t expired, that’s one thing, but don’t buy it used from a stranger. 

Dangerous Toys

While most toys you buy for your child can be used, it’s important to pay attention to safety. Many older toys just aren’t safe. If your granny wants to give you a bunch of old toys, it’s best to not use them. What was considered safe 20 years ago has proven to be unsafe today due to accidents happening.


Rules have changed about bedding too. One year bumper pads are a thing, and the next year you learn they’re a choking hazard. Most babies should not use pillows or anything that could wrap around their neck at night anyway. 

Cloth Diapers

If you’re going to use cloth diapers for your child, the best thing to do is buy or make a set that is brand new for just your baby. Even though technically you can wash them, used cloth diapers may not be absorbent enough if the prior owners did not take care of them properly (no bleach and no fabric softer).

The important thing is to understand current guidelines for baby-safe products before buying anything used. But for the items above, it’s better to buy new to ensure the safety of your child.