Jem spent his childhood in Africa and the lack of availability of readymade products and abundance of natural plant materials led to his interest in natural products.
Treuliodd Jem ei blentyndod yn Affrica ac mae'r diffyg cynnyrch sydd wedi'i baratoi'n barod a'r digonedd o blanhigion naturiol wedi arwain at ei ddiddordeb mewn cynnyrch naturiol.