Absolutely! Reusable products can be even more hygienic than disposables because you’re able to wash them yourself and ensure that they’re clean. Just as when you purchase underwear at the store you should always wash your reusable product before you use it simply because most factories are dusty, etc.
Disposable products with layers and layers of packaging aren’t treated as medical products here in the UK so they’re not required to be kept sterile. They’re made in factories and are not required to follow any food grade factory standards, including divulging information about what exactly is in their products.