Pine tar and coal tar are different things entirely. Creosote is present in raw pine tar is removed from the pine tar that is sold in EU. The pine tar soap that is made in the USA is also creosote free and completely safe. Pine tar is on the EU list of permitted ingredients.Tl;dr: pine tar is carcinogenic.
Oh, dear. One of the 19th century north American bushcraft authors included a similar recipe in one of his books. Chimney sweeps ("Chim chimeny chim chimeny chim chim cheery") got groin-region cancers from the coal tar residues in their workplaces.
A possible essential oil in the product under discussion is Pennyroyal. Mentioned in olden time herbals as a contraceptive, Pennyroyal zaps insects and is toxic to humans also. (Yes, this might be a straw man argument as I do not know the actual ingredients of the product. Let it stand as a general advisory.)
We had this discussion in another thread. Just because it's "natural" does not mean you want to put it on your skin.
Bushcraft on-topic content: Neem oil is good. Permethrin, properly applied to one's gear, not oneself, is good. Wild garlic or onion works on mozzies. Clay-rich mud makes a physical barrier the little bilghters can't handle. Shemagh, long sleeves, and light gloves block both mozzies and UV. (I dribble neem oil around the inside hem of my kilt.)
I don't know what HMG calls it, but over here we have OSHA, the Occupational Safety and Health Administration, and the FDA, "Food and Drug Act", which has megamouse problems, but is basically sound. MSDS, Material Safety Data Sheets, are available for the googler. Why would one put ^H^H^H^H stuff on one's body that is carcinogenic? (Btw, California Prop 65 is utter garbage. "Known" does not equal "asserted by ignorant people". [Sigh. You lot in the UK have sharps-fearing weenies, we have every other flavor of knucklehead.])