Start with a shampoo bar, a body-cleansing bar and solid stick deodorant—provided they work for you at home. These are sensible first swaps when your carry-on liquids bag is crowded. Add conditioner or other solid products only if you already use their liquid equivalents.
The goal is a smaller, dependable kit, not an entirely liquid-free bathroom. Keep familiar toothpaste, sunscreen and specialist skincare if changing them would make the trip harder.
Which toiletries are worth switching?
Choose by function rather than buying a matching travel set. Heathrow’s hand-luggage packing guide specifically suggests shampoo bars, conditioner bars and solid deodorant as alternatives to liquids.
| Solid option | What it replaces | Practical packing decision |
|---|---|---|
| Shampoo bar | Bottled shampoo | Try it through several washes before departure; choose a mini or partly used bar for a short trip. |
| Body-cleansing bar | Shower gel | Take one you already tolerate, or leave it home if your accommodation supplies a suitable cleanser. |
| Solid stick deodorant | Roll-on, spray or gel deodorant | Check the actual formula: a stick-shaped package can still contain gel. |
| Conditioner bar | Bottled conditioner | Pack it only if your hair needs conditioner and you like the solid version. |
| Facial-cleansing bar | Liquid face wash | Treat this as a separate choice from body soap; do not assume one bar suits every job. |
Toothpaste tablets are optional, not an essential upgrade. Check the fluoride content and discuss a change with your dentist if you use a prescribed or specialist product. The American Dental Association’s toothpaste guidance recommends fluoride toothpaste for cavity prevention; a compact format alone is not a reason to replace your usual tube.
Do solid toiletries count as liquids at airport security?
Genuinely solid bars are the useful distinction—not products described as “concentrated” or “travel-friendly.” Creams, pastes and gels still fall under liquid restrictions. The following rules were checked on October 7, 2026.
For U.S. TSA checkpoints, ordinary liquids, aerosols, gels, creams and pastes must fit in one quart-sized bag, in containers of 100 ml / 3.4 oz or less. TSA separately lists bar soap and solid deodorant as permitted in carry-on and checked bags. See the TSA liquids rule for the liquid portion of your kit.
For Canadian checkpoints, CATSA explicitly says solid deodorant is not subject to carry-on size or volume restrictions; liquid, aerosol and gel deodorants are restricted to containers of 100 ml or less.
For UK departures, liquid limits and separate-bag requirements depend on the airport. GOV.UK advises checking departure, transit and return airports. Do not assume a more permissive outbound checkpoint means the return journey will match.
Pack for the wet bar, not just the dry one
A bar needs somewhere to drain after a shower and somewhere secure for transport. These are different jobs.
- At your accommodation: leave bars on a draining surface, away from standing water and direct shower spray.
- Before packing: give them time to dry. Ethique’s bar-case care instructions advise drying bars between uses for best performance and longevity.
- On an early checkout morning: consider showering the evening before. If you must pack a damp bar, contain it separately from clothes and unpack it to dry at your next stop.
- Keep bars identifiable: label cases or separate shampoo, conditioner and cleanser so you are not guessing in a shared bathroom.
Use a case you already own if it fits and closes securely. Compare the packed bar plus its case with your travel bottle before assuming the swap saves space or weight.
For a one-week trip, size each bar around your usual use rather than a fixed promise of how many washes it will last. Test the whole kit at home, including packing after a shower, and keep a small liquids bag for products you prefer not to swap.
Use the broader toiletries packing checklist to catch essentials such as your toothbrush, floss, contact-lens supplies and medicines without adding duplicate products.