Q. Are solid toiletries such as solid deodorant and wax-like hair products subject to the TSA 100 ml/3.4 oz. limit for “liquids and gels” or are they exempt?
A. According to the TSA website, solid deodorants are exempt, but “paste”-like products must adhere to the limits, so even semi-solid hair grooming products must be placed in that quart-size plastic bag. This question is answered on the TSA blog here. By the way, if you're flying through security at British airports, they're particularly strict about the size of the clear plastic bag.
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