Here's the scoop: in most countries, the carry on baggage liquid limit is 100 milliliters (or 3.4 ounces) per container. That means that any liquids, gels, or aerosols you want to bring on board need to be in tiny bottles or containers that fit within that limit. And, yes, that includes your favorite hair products and cosmetics!
Now, you might be thinking, "But what about my medications and contact lens solution?" Don't worry, friends! There are exceptions to the rule, and you're usually allowed to bring these essentials on board in reasonable quantities. Just be sure to check with your airline beforehand to avoid any hassle.
So, how can you make the most of the carry on baggage liquid limit? For starters, you can decant your favorites into smaller containers or buy travel-sized versions of your go-to products. And, if you're feeling fancy, you can even invest in a reusable toiletry bag to keep all your miniatures organized and easy to find.
Guide to Airline Carry-on Bag Limits & Regulations - iFLY