There is only one company that is authorized by Disney to sell Disney-scented candles, Bowes Signature Candles. They have also have been given the actual scents from Disney. They are a local (Orlando) candle company. They had a booth at the Arts Festival this past January and they have a spot at Disney Springs that they have had for a couple of years now. We were speaking with the owner and he is super nice and knowledgeable about his products since he makes them himself. He explained that they are not allowed through their contract with Disney to use specific names on their candles, but trust me, their scents are spot on since the chemical makeup comes from Disney. Magic Candle was started by a couple who just moved down here 2-3 years ago to start a candle company. They moved to Celebration to take advantage of the fact that Celebration is so closely related to Disney, but they are in no way affiliated with Disney and according to some people we spoke to, Disney is currently looking into the company for any copy-right infringements. So, if you are looking for some candles that truly smell like the parks and hotels, try Bowes. They also have a website if you are not close to WDW:
https://www.bowessignaturecandle.com/
I have tried Circa 1955 and have been getting the subscription box every month, but am looking to just stay with Bowes. The lady who owns Circa is super nice and she has a wide variety, but we like supporting local businesses. The Bowes Candles last a super long time and they smell fabulous. They also offer a discount on candle purchases for returning the glass holders for recycling.
As a side note, Disney used to sell their own brand of candles when they had the home store in Downtown Disney. This was years ago, but we still have the Pine and Sugar Cookie scents and they still smell amazing even after all these years. Wish Disney still made them.