So the reader's question is: Is painting nails onboard a plane illegal? Technically, the answer is no. You cannot be arrested or removed from the plane for breaking the law if you refuse to stop painting your nails onboard.
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Any nail polish that's 3.4 ounces (or 100 ml) or smaller is allowed in your carry on. Most nail polish is smaller than this, so you don't need to think twice before tossing your favorite color in your bag. But no matter how bored you get in-flight, it's probably best not to apply any nail polish on the plane.
You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.
With Ryanair, the usual hand luggage regulations also apply. A maximum of 1,000 ml of liquids may be taken through the security check. Note that this includes not only liquids, but also sprays, gels, creams, and even spreads like liverwurst. The respective containers must not exceed a maximum capacity of 100 ml each.
Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.
Please note that current UK aviation security regulations forbid the carriage of liquids (including aerosols and gels) in hand baggage through the passenger security point in containers larger than 100ml.
TSA counts mascara as a liquid, so the 3-1-1 rule for packing it in hand luggage applies. It states that all liquids have to be in 3.4 oz (100 ml) bottles or smaller and packed in a 1-quart bag. Mascara usually isn't above 3.4 oz, so you're free to pack it in your hand luggage.
The FAA limits the total amount of restricted medicinal and toiletry articles in checked baggage. 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).
Makeup And The 3-1-1 TSA RuleLiquids, like foundation, nail polish and moisturizer, are subject to the 3-1-1 rule. Items like powder blush or foundation, do not. Sometimes that are a bit more confusing are mascara and lip gloss. These are considered liquids.
The 3-1-1 Rule refers to three core components that govern how many liquids you can bring in your carry-on bags: Each liquid must be in a 3.4-ounce or less container (3), all containers must be placed inside one clear quart-sized plastic bag (1), and each passenger is only allowed one plastic bag (1).
Each passenger is limited to one quart-size bag of liquids, gels and aerosols. Common travel items that must comply with the 3-1-1 liquids rule include toothpaste, shampoo, conditioner, mouthwash and lotion.
You've just gotta have it. Makeup in a solid or powder form is allowed in carry-on and checked bags with no quantity or size limitations. However, when packed in carry-on bags, makeup in a liquid, lotion, gel, paste or creamy form, must be in containers that are 3.4 ounces or less.
Fingernails must be clean and manicured at all times. You must wear nail varnish. The acceptable colours are clear/ natural, red, nude, French/ French Ombre manicure. All colours must be gloss and not a matte finish.