6 years ago
Oud has been used as perfumes, incense and medicinally for thousands of years. It is only new to us that live in the "West". Almost all designer and niche houses use only synthetic ouds. Honestly, if these houses were using real oud, the prices would be crazy expensive. Houses in the Arabias that must mass produce oud fragrances either use synthetics or only use cheap oud blends.
Off the top of my head, the only fragrance houses (I know of) that use real oud are Areej le Doré (the owner, Russian Adam also owns the distillery Feel Oud), The Rising Phoenix Perfumery and Sultan Pasha.
If you are seeking real oud oils (and can afford it) you would want to check out Feel Oud, Imperial Oud, and Ensar Oud - each has their own website.