| Cetostearyl Alcohol | Emulsifier/Stiffening Agent | ⚠️ Yes — Stearyl Alcohol | A mixture of cetyl and stearyl alcohols (fatty alcohols, not drinking alcohol). Used to thicken and stabilize creams and ointments. Can cause contact dermatitis in sensitive individuals. |
| Cetyl Alcohol? | Emulsifier/Thickener | ?Uncertain — Cetyl Alcohol | A fatty alcohol used in topical formulations. Can cause contact dermatitis. |
| Medium-chain Triglycerides | Solvent/Vehicle | ⚠️ Yes — Coconut | Fatty acid esters derived from coconut or palm kernel oil. Used as a solvent and vehicle in oral and topical formulations. May be relevant for individuals with coconut sensitivity. |
| Propylene Glycol | Solvent/Humectant | ⚠️ Yes — Propylene Glycol | An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals. |
| Sucrose Stearate | Emulsifier | ⚠️ Yes — Sucrose | A sugar ester used as a mild non-ionic emulsifier in topical formulations. |
| .alpha.-tocopherol Acetate | Antioxidant | No | Vitamin E acetate. Used as an antioxidant to protect active ingredients from degradation during storage. |
| Aluminum Oxide | Abrasive/Adsorbent | No | Alumina. Used as an adsorbent, abrasive, and processing aid in pharmaceutical manufacturing. |
| Aluminum Stearate | — | No | — |
| Cocoyl Caprylocaprate | Emollient/Solvent | No | A coconut-derived ester used as an emollient and oily vehicle in topical formulations. |
| Corn Glycerides? | Emollient/Emulsifier | No | Glyceride esters derived from corn oil, used as emollients and co-emulsifiers. Corn-derived — may be relevant for corn-sensitive individuals. |
| Dimethicone 20 | Skin Protectant | No | A silicone-based polymer used as a skin protectant, emollient, and anti-foaming agent in topical formulations. |
| Docosanol | Antiviral/Emollient | No | A fatty alcohol used as the active ingredient in cold sore treatments and as an emollient in topical formulations. |
| Ferric Oxide Red | Colorant | No | Red iron oxide pigment used in tablet coatings and capsule shells. A mineral-based colorant, distinct from FD&C synthetic dyes. |
| Ferric Oxide Yellow | Colorant | No | Yellow iron oxide pigment used in tablet coatings and capsule shells. A mineral-based colorant. |
| Ferrosoferric Oxide | Colorant | No | Black iron oxide used as a pigment in tablet coatings and capsule shells. Derived from iron, not from food allergen sources. |
| Glycerin | Humectant/Solvent | No | A sugar alcohol that attracts moisture. Used as a humectant, solvent, and sweetener in many oral and topical medications. Generally well tolerated. |
| Glyceryl Monocaprylate | Penetration Enhancer/Emulsifier | No | A glyceride ester used to enhance skin penetration and as an emulsifier in topical formulations. |
| Hamamelis Virginiana Top Water | Skin Conditioner | No | Witch hazel distillate, a plant-derived astringent used in topical formulations to soothe and tone the skin. |
| Isopropyl Isostearate? | Emollient | No | A synthetic ester used as an emollient and skin-conditioning agent in topical formulations. |
| Methyl Salicylate? | Flavoring/Counterirritant | No | Oil of wintergreen. Used as a flavoring agent and topical counterirritant (creates a warming sensation). Can cause sensitivity in aspirin-intolerant individuals. |
| Phenylethyl Alcohol | — | No | — |
| Polyglyceryl-3 Oleate? | Emulsifier | No | A polyglycerol ester used as a non-ionic emulsifier in topical formulations. |
| Sorbitan Monooleate | Emulsifier | No | A non-ionic surfactant (Span 80) used to stabilize oil-in-water and water-in-oil emulsions in medications. |
| Squalane | Emollient | No | A saturated hydrocarbon used as an emollient and moisturizer. Originally from shark liver oil, now commonly plant-derived (olive or sugarcane). |
| Stearic Acid | Lubricant | No | A fatty acid used as a lubricant in tablet manufacturing. |
| Xanthan Gum | Thickener/Stabilizer | No | A polysaccharide produced by bacterial fermentation, used to thicken and stabilize liquid and semi-solid formulations. Derived from corn sugar fermentation — may be relevant for corn-sensitive individuals. |