| Cetyl Alcohol | Emulsifier/Thickener | ⚠️ Yes — 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. |
| .alpha.-tocopherol Acetate | Antioxidant | No | Vitamin E acetate. Used as an antioxidant to protect active ingredients from degradation during storage. |
| Corn Oil | Solvent/Vehicle | No | Oil extracted from corn germ, used as a solvent and vehicle in oral formulations. Must be avoided by individuals with corn allergy. |
| Croscarmellose? | Disintegrant | No | Cross-linked carboxymethylcellulose used to help tablets break apart rapidly. Plant-derived cellulose polymer. |
| Dimethicone 20 | Skin Protectant | No | A silicone-based polymer used as a skin protectant, emollient, and anti-foaming agent in topical formulations. |
| Ethylhexyl Hydroxystearate? | Emollient | No | A synthetic ester used as an emollient and skin-conditioning agent in topical formulations. |
| Gluconic Acid? | Chelating Agent/pH Adjuster | No | An organic acid used as a chelating agent and pH adjuster in pharmaceutical formulations. |
| 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 Monostearate | Emulsifier | No | An emulsifier that helps oil and water mix in creams and ointments. Derived from glycerin and stearic acid. |
| Glyceryl Oleate? | Emulsifier/Emollient | No | A glyceride ester used as an emulsifier, emollient, and skin-conditioning agent 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. |
| Lavender Oil | Fragrance | No | An essential oil from lavender flowers used as a fragrance and for its calming properties. Can cause contact sensitization in some individuals. |
| Phenoxyethanol | Preservative | No | A synthetic preservative used to prevent microbial growth in topical and some oral formulations. Can cause skin irritation in sensitive individuals. |
| Poly(methyl Acrylate-co-methyl Methacrylate-co-methacrylic Acid 7:3:1; 280000 Mw)? | — | No | — |
| Polysorbate 20 | Emulsifier/Solubilizer | No | A non-ionic surfactant similar to polysorbate 80 but derived from lauric acid. Used to solubilize and stabilize formulations. |
| Sorbitan Tristearate? | Emulsifier | No | A non-ionic surfactant (Span 65) used to stabilize water-in-oil emulsions in topical formulations. |
| Vitamin E Polyethylene Glycol Succinate? | Solubilizer/Emulsifier | No | A water-soluble form of vitamin E (also called TPGS) used to improve the absorption of poorly soluble drugs. Contains a PEG component. |
| 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. |