Pinus Palustris Wood Tar, Pine Tar, Extra Heavy, Technical, also known as Pine tar oil or Wood tar oil, is a sticky material often used as a wood preservative or wood sealant.



  • It can be used as a treatment for skin conditions like psoriasis or rosacea. Technical grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.


  • Moisturizers:  Pinus Palustris Wood Tar contains water, an instant moisturizer and a substance that gives the soap some texture. Glycerin is a fatty moisturizer. It is hygroscopic in nature, meaning it draws moisture from the environment to the skin.
  • Product Enhancement:  There are two additional ingredients in Pinus Palustris Wood Tar. Pentasodium pentetate is an emulsifier, meaning it keeps the oil and water based ingredients in the soap from separating. Pentasodium pentetate also acts as a chelating agent, keeping the product from degrading due to exposure to metals, as outlined in “A Consumer’s Dictionary of Cosmetic Ingredients.” It keeps the soap from oxidizing and allows the fragrance and texture to remain intact. Tetrasodium etidronate is a water softener, used to prevent Pinus Palustris Wood Tar from leaving behind residue or soap scum.


  • One potential toxin found in pine tar soap is 1,4 dioxane, also just called dioxane. This is not regulated by the Food and Drug Administration because it’s not an ingredient itself; it’s a byproduct of other ingredients. Studies done by the Agency for Toxic Substances & Disease Registry have shown that dioxane at high doses can cause kidney and liver damage, and has been proven to cause irritation to the nose and mouth when inhaled as vapor. According to the U.S. Department of Health and Human Services, 1,4-dioxane is “reasonably anticipated to be a human carcinogen.”


Unknown, please consult with your doctor.

Other names

Pine Tar


Source: Wikipedia,


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