Palma Christi (Castor Oil) Natural Cleansing Bar Soap, 6 bar set

These describe what an ingredient is, not whether it is a problem. The stance marks above are the ratings; these are not.

• common irritantLanolin

  • Lanolin: A rich wool-derived emollient that is also a long-standing patch-test allergen. American Contact Dermatitis Society, Allergen of the Year 2023: "Lanolin: The 2023 American Contact Dermatitis Society Allergen of the Year", Cutis 2023;112(2):78-81, DOI 10.12788/cutis.0825, PMID 37820332; FDA OTC skin protectant monograph, 21 CFR 347.10(k), lists lanolin as a skin protectant at 12,5 to 50%.

• rich occlusiveLanolin, Theobroma Cacao Seed Butter

  • Lanolin: A rich wool-derived emollient that is also a long-standing patch-test allergen. American Contact Dermatitis Society, Allergen of the Year 2023: "Lanolin: The 2023 American Contact Dermatitis Society Allergen of the Year", Cutis 2023;112(2):78-81, DOI 10.12788/cutis.0825, PMID 37820332; FDA OTC skin protectant monograph, 21 CFR 347.10(k), lists lanolin as a skin protectant at 12,5 to 50%.
  • Theobroma Cacao Seed Butter: A rich butter the FDA recognises by name as a skin protectant. FDA OTC skin protectant monograph, 21 CFR 347.10(d): "Cocoa butter, 50 to 100 percent."

• humectantGlycerin

  • Glycerin: A humectant, and one of the two ingredients a comparison of moisturiser components found made a significant difference to skin hydration. FDA OTC skin protectant monograph, 21 CFR 347.10(h), lists glycerin as a skin protectant at 20 to 45%. On the humectant half: Jeong CB, Han JY, Cho JC, Suh KD, Nam GW, "Analysis of electrical property changes of skin by oil-in-water emulsion components", Int J Cosmet Sci 2013;35(4):402-410, DOI 10.1111/ics.12059, PMID 23621673, found that "glycerine and urea showed significant skin hydration effects compared with other humectants".