The most obvious difference is that PURE Papaya Ointment is completely free of petrochemicals, whereas Lucas Papaw Ointment is not – Lucas comes in a base of petroleum jelly. There remains some debate regarding the potential of petroleum derivatives as carcinogens, distributors of Lucas Papaw Ointment are careful to point out that due to the purity of the petroleum jelly they use, and the fact that it is pharmaceutical grade, it means that there is no risk of the material they use of harbouring any potential carcinogens. Whereas this does give some comfort to users of Lucas Papaw Ointment, the one fact that can’t be denied is that petroleum jelly is well known to ‘suffocate’ and dehydrate the skin over long periods. This is because petroleum jelly isn’t absorbed, but rather acts as a barrier, preventing moisture from being absorbed (though it will help the moisture that’s already in the skin’s layers to be retained). This barrier effect can also starve the skin of vital nutrients. PURE Papaya Ointment is also more rich in the key ingredient papaya, containing 48mg per gramme of fermented papaya, which is approximately 20% more than Lucas Papaw Ointment at 39mg per gramme. PURE Papaya Ointment also contains a host of other beneficial ingredients.