Fragrance Oils are not really natural. They are made in labs and are primarily synthetic. Though some will contain essential oils. The only way to be natural is with essential oils which can be pricey.
Wholesale Supplies Plus carries some natural fragrance oils but again they are pricey.
I use primarily Fragrance Oils and get them from Nature's Garden, Elements Bath & Body, Rustic Escentuals, Nurture Soap. Fragrance Lab, WSP (sales only).
Never heard of P&J Trading, just took a look and they seem pricey for fragrance oils. 3 ounces for 18.00. I would look elsewhere for much better pricing.