Short answer
Yes, treats containing dragon fruit are generally safe for cats. The soft fruit flesh used in these products is non-toxic. Just offer them in moderation as an occasional snack. If you try a new treat, watch for any digestive upset and contact your own vet if your cat seems unwell.
Dragon fruit — Food safety facts
Safe to share · Cats · full breakdown on the linked food page
The soft flesh is safe in small pieces. The skin and seeds pass through mostly undigested.
The full verdict, portion guidance and serving notes are collected on the Dragon fruit food facts page.