In order to protect passengers from hazards involving the usage of liquid explosives, Europen Commission Implementing Regulation (EU) 2015/1998 of 5 November 2015 laying down detailed measures for the implementation of the common basic standards on aviation security sets out restrictions on the carriage of liquids. These restrictions apply to all passengers departing from EU airports, regardless of their destination.
You can find the full text of the Regulation here:
The following may be carried in cabin baggage:
a) liquids in containers with a capacity not greater than 100ml in a transparent re-sealable plastic bag of a capacity not exceeding 1 litre;
b) liquids purchased at the airport or on board of the aircraft and placed in a sealed security bag;
c) liquids to be used during the trip either required for medical purposes or a special dietary requirement, including baby food.
Medical/dietary liquids, including baby food may be carried in bulk in a 1 litre bag.
The category of liquids includes:
• water and other drinks, soups, syrups;
• creams, lotions and oils;
• gels, including hair and shower gels;
• contents of pressurized containers, including shaving foam and other foams and deodorants;
• pastes, including toothpaste;
• mixtures of liquid and solids;
• other liquid substances with a similar composition.
All liquids carried to the security checkpoint must be removed from cabin baggage and presented for security screening separately from cabin baggage. Fluid containers may be subject to security screening with safety equipment in accordance with the requirements of EC laws and regulations.
The conditions of carriage of liquids can be downloaded here (PDF)