| Cetyl Alcohol | Emulsifier/Thickener | ⚠️ Yes — Cetyl Alcohol | A fatty alcohol used in topical formulations. Can cause contact dermatitis. |
| Methylparaben | Preservative | ⚠️ Yes — Parabens | A preservative used to prevent microbial growth. Can cause allergic contact dermatitis in sensitive individuals. |
| PEG-100 Monostearate | Emulsifier | ⚠️ Yes — PEG | A PEG-based emulsifier used to stabilize oil-in-water emulsions in creams and lotions. Contains a polyethylene glycol component. |
| .alpha.-tocopherol Acetate | Antioxidant | No | Vitamin E acetate. Used as an antioxidant to protect active ingredients from degradation during storage. |
| Anhydrous Citric Acid | pH Adjuster/Buffer | No | Water-free citric acid used to adjust pH and enhance drug stability. Typically derived from fermentation of corn sugar. |
| Ascorbic Acid | Antioxidant | No | Vitamin C. Used as an antioxidant to prevent degradation of active ingredients and as a pH adjuster. |
| Cyclomethicone | — | No | — |
| Cyclomethicone 5? | Emollient/Carrier | No | A volatile silicone that evaporates quickly, leaving a smooth feel. Used as a carrier and emollient in topical products. |
| Diazolidinyl Urea | Preservative | No | A formaldehyde-releasing preservative used to prevent microbial growth. Can cause contact dermatitis in formaldehyde-sensitive individuals. |
| Edetate Sodium | Chelating Agent | No | A sodium salt of EDTA used to bind metal ions, preventing degradation of active ingredients and preserving formulation stability. |
| Glyceryl Monostearate | Emulsifier | No | An emulsifier that helps oil and water mix in creams and ointments. Derived from glycerin and stearic acid. |
| Hamamelis Virginiana Top Water | Skin Conditioner | No | Witch hazel distillate, a plant-derived astringent used in topical formulations to soothe and tone the skin. |
| Hyaluronate Sodium | Moisturizer/Viscosity Agent | No | Sodium hyaluronic acid. A naturally occurring substance used as a moisturizer and viscosity agent in ophthalmic and topical formulations. |
| Hydrogenated Coconut Oil | — | No | — |
| Polyoxyl 20 Cetostearyl Ether | Emulsifier | No | A non-ionic surfactant (Cetomacrogol) used to emulsify and stabilize creams and ointments. |
| Sodium Pyrrolidone Carboxylate | Humectant | No | Sodium PCA. A natural moisturizing factor component used as a humectant 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. |