Short answer: a 100 ml label does not by itself guarantee that a perfume bottle can travel in cabin baggage. Check the current rules for your departure airport, carrier, route and destination before packing.
Check the actual journey
Airports and carriers can apply different liquid and dangerous-goods requirements, and rules can change. Check both cabin and checked-baggage guidance for the journey, including any connection. Do not assume that a bottle permitted on one route will be accepted on another.
Protect the bottle
Keep the cap secure, protect the glass against impact and avoid prolonged heat. Carry it in a way that contains a leak if the bottle is damaged. If you are travelling by another mode, still check the operator’s rules for fragrance products.
Understand the NEORBIS format
Confession and Wild are each 100 ml Eau de Parfum in a sculptural bottle. The 100 ml size guide explains the format; it does not replace the rules for a specific journey. See storage advice before and after travel.