Travel sizes are a repeat-purchase tier with one hard rule: 100 ml or less per item. This is how to build a coherent TSA-friendly PET kit.
The 100 ml rule
Each bottle must be 100 ml (3.4 oz) or less per item to clear cabin rules. Both 50 ml and 100 ml bottles qualify.
Kit coherence
Match neck finishes (e.g. 24/410) across formats so pumps and caps swap easily, and use one masterbatch colour to make the set look designed.
Formats
A 50 ml serum or dropper, a 100 ml lotion, and a small mist form a coherent, legal, on-brand travel kit.
Related: cosmetic bottles.
Shop these bottles: 220 ml PET cosmetic bottles, 300 ml PET cosmetic bottles, 500 ml PET cosmetic bottles.
Questions buyers ask us most
What size is TSA-compliant?
Containers of 100 ml or less per item are carry-on compliant; 50 ml and 100 ml both qualify.
Can travel bottles be custom coloured?
Yes — the same masterbatch used on your full-size range keeps the travel kit on-brand.
Talk to the team before you lock the mold. See the catalog or message us and we will match your formula to a bottle that ships clean.