From the American Airlines Website:
For Security Screening:
Place liquids in individual containers with a maximum capacity of 3.4 oz./100 ml each.
All liquids, gels and aerosols in containers larger than 3.4 ounces must be packed in your checked bag.
Place all liquid containers in a separate clear plastic, zip-top bag no larger than 8in x 8in (20cm x 20cm) or is quart size.
Items must fit in the bag comfortably so that it closes completely and must be submitted for inspection separately from other carry-on baggage.
Remove the plastic bag from the carry-on bag at the security checkpoint for separate x-ray screening. Exemptions to the liquids rule apply for liquid medicine or baby milk/food.
View TSA guidelines for traveling with formula, breast milk or juice.
Customers carrying liquids in carry-on bags may be subject to secondary searches before boarding.
Examples Of Liquids, Gels And Aerosols:
Toiletries – shampoo, toothpaste, mouthwash, perfume, shaving foam, aerosols, deodorant, eye care products
Cosmetic products – perfume, hair spray/gel, lip gloss, mascara, nail polish, makeup removers/cleansers, foundation
Non-solid food items – soups, syrups, pressurized food containers (cheese or whipped cream), gelatin, pudding, yogurt
Liquid soaps, sanitizers, bath oils, bubble bath Any creams, ointments or lotions All other liquids/gels not listed here
The sizes might vary depending on the airline, all of the airlines should have a run down of their guidelines on their website.
The size restrictions only apply to carry-on luggage, so you might be able to get some travel sized containers to put together a little touch up kit you can bring in your bag for layovers and keep the full sized stuff in a suitcase.
Hope this helps! (Also, enjoy your trip!)