The science
The cleansing chemistry of this wash is a mild synthetic-detergent system, and its tolerance profile follows from that rather than from the black soap on the label. Cocamidopropyl betaine is an amphoteric surfactant that boosts foam and, in blends, reduces the irritation potential of anionic surfactants; sodium cocoyl isethionate is a mild anionic surfactant with among the lowest irritation and lipid-stripping scores in comparative studies, widely used in sensitive-skin cleansers; sodium methyl lauroyl taurate and sodium lauroyl isethionate lower in the list are similar mild anionics. Together they clean at a pH close to that of skin, which is the principal reason syndet washes cause less barrier disruption, less increase in transepidermal water loss and less irritation than true soaps in controlled comparisons. The formula does contain a true-soap fraction, potassium shea butterate, potassium cocoate and potassium palm kernelate, but at a low level relative to the synthetic surfactants, so the overall pH remains far milder than traditional black soap, which is made with alkaline plant ash and typically measures pH 9 to 10.
The supporting ingredients are well chosen for the brief. Aloe barbadensis leaf juice powder, second in the list, contains polysaccharides with mild soothing and humectant properties in leave-on studies; in a rinse-off wash its residence time is short, so the benefit is modest. Avena sativa (oat) meal extract supplies avenanthramides and beta-glucan, which have controlled-trial evidence for reducing itch and irritation when left on the skin; the same contact-time caveat applies. Glycerin at fifth deposits some humectant during washing, and the shea butter and coconut oil, together with jojoba esters, provide light superfatting that leaves a trace of lipid on rinsing; guar hydroxypropyltrimonium chloride is a cationic conditioning polymer that deposits on skin for a smoother after-feel. Caramel and iron oxides provide the dark colour; the fatty acids and cellulose derivatives thicken.
There is no active in the formula with evidence for acne or folliculitis, so the 'clearing' claim rests on gentle sebum removal alone. Tolerance considerations are the fragrance, sixth in the list with coumarin declared, a recognised allergen with meaningful positive rates in patch testing, and cocamidopropyl betaine, a documented contact sensitiser whose reactions are usually attributed to manufacturing impurities. Coconut oil is comedogenic in leave-on form but of limited concern in a rinse-off. SheaMoisture publishes no product-specific testing; the 24-hour moisturisation claim is not supported by published data.