I'm sorry if it's a dumb question but I've never been on a plane before and I'm LOST. I just wonder if I can take my treatment hair products and my shampoo/conditioner OVER 100 ml in my checked luggage or if I can only take 100 ml each...

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    Pack them in a ziplock bag still, not because of any rules but because the more you have the worse a leak of during travels is.
    – Flexo
    Commented Oct 24, 2021 at 10:17
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    The answers here are generally correct, but there are some restrictions on liquids, even in checked luggage. For instance, the TSA prohibits any bottles over 17 oz, and I think there’s limits on the total amount you can bring. Just be sure to check their website before you go! Commented Oct 24, 2021 at 14:54
  • Ask your travel agent or other ticket vendor, and tell them their answer is of the essence in your contract… Commented Oct 24, 2021 at 20:30
  • "TSA prohibits any bottles over 17 oz" - so you can't even bring a single wine bottle to the US? Commented Oct 25, 2021 at 13:56
  • No, that limit applies only to non-food items like toiletries or medicines Commented Nov 16, 2021 at 21:13

2 Answers 2


In the days of the 100ml rule I have yet to take a flight without more than 100ml of shampoo and 100ml of conditioner in a checked bag. It's a complete non-issue, the liquid rules do not apply to checked baggage, only to carry-on.

  • Oh thank god lol i was worried I'd have to spent 14 days without treating my hair LMAO
    – Ghostie
    Commented Oct 23, 2021 at 22:23
  • @Ghostie The only thing people will typically be carrying that can't be checked is lithium-ion batteries. Beyond that, many things associated with fire are prohibited but most people aren't carrying them, anyway. Commented Oct 24, 2021 at 1:59
  • @Ghostie Do they not have Walgreens / CVS / Tesco / Albert Heijn / similar stores where you are going?
    – shoover
    Commented Oct 24, 2021 at 4:17
  • @shoover I was considering that, also, but that means leaving behind partial bottles when you return. Commented Oct 24, 2021 at 4:18
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    @Traveller not if they cannot take them to their destination in the first place (that was the point of the question)
    – Chieron
    Commented Oct 24, 2021 at 11:43

There is no volume limit for liquids within checked-luggage. It is very common for people to carry liquid cosmetic products since carry-on restrictions very tight. Of course, the total weight of the suitcase has a limit but for a few bottles of shampoo, conditioner, etc you should be able to be within the limit.

More important than the volume is the type of container. Simple plastic bottles or even ones with a spray nozzle are fine but pressurized products are categorized as hazardous material. Aerosols for toiletries are not allowed in large quantities but they may be allowed in small sizes. The FAA specifies a limit but lets airlines add further restrictions and there are different rules outside of the US.

The FAA has a very informative page on the matter for more detail. You did not mention where you will be flying, so if it is outside of the USA, other rules apply for aerosols. For simple plastic or glass bottles that contain shampoo, conditioners, sunscreen, etc, then you can have them in checked luggage.

  • Correct - but I have many times brought 15 - 20 deodorant spray bottles in my luggage, never any issues. “Large amounts” seem to start at much more.
    – Aganju
    Commented Oct 24, 2021 at 9:54
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    @Aganju Okay, I have to ask why you are carrying 15-20 deodorant spray bottles with any frequency ... Commented Oct 24, 2021 at 21:55
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    My favorite one is not sold in the country I live - so I bring it when I do business trips, every year.
    – Aganju
    Commented Oct 25, 2021 at 10:19

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