Cellophane is plant based. You will have to use tape, stickers, glue or an adhesive to seal. I always use cellophane for food due to allergies. Good luck with blessings!
So glad to find this forum with great information. I'm new to soap making and gathering information before I start creating. Most interested in rebatched method at this point in time. Thank you for sharing your wisdom. It is very helpful!
~Audrey