Quantity limits: Included in, not in addition to, the quantity limits for other medicinal and toiletry articles: The total aggregate quantity per person cannot exceed 2 kg (70 ounces) or 2 L (68 fluid ounces). The capacity of each container must not exceed 0.5 kg (18 ounces) or 500 ml (17 fluid ounces)*.
Aerosol release devices (button/nozzle) must be protected with a cap or other means to protect against accidental release.
See the regulation: 49 CFR 175.10(a)(1)
Tip: Pump sprays and other forms (lotions, etc.) of these products are not restricted as hazardous materials.
*Liquids, gels, and aerosols in carry-on baggage are further limited to 100-ml (3.4 oz) containers at the TSA security checkpoint.