| 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. |
| Methylparaben | Preservative | ⚠️ Yes — Parabens | A preservative used to prevent microbial growth. Can cause allergic contact dermatitis in sensitive individuals. |
| Propylene Glycol? | Solvent/Humectant | ?Uncertain — Propylene Glycol | An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals. |
| Propylparaben | Preservative | ⚠️ Yes — Parabens | A paraben preservative used to prevent microbial growth. Can cause contact dermatitis in paraben-sensitive individuals. |
| Acrylic Acid-2-ethylhexyl Acrylate-2-hydroxyethyl Acrylate-vinyl Acetate Copolymer (for Duro-tak 87-2070)? | Adhesive | No | A pressure-sensitive adhesive polymer used in transdermal patches to hold the patch to the skin. |
| Benzyl Benzoate? | Solvent/Preservative | No | An organic ester used as a solvent in injectable formulations and as a preservative. Can cause contact irritation. |
| Calcium Phosphate? | — | No | — |
| 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. |
| Diisopropyl Adipate | Emollient | No | A synthetic ester used as a light emollient and skin-conditioning agent in topical formulations. |
| Dimethicone 20 | Skin Protectant | No | A silicone-based polymer used as a skin protectant, emollient, and anti-foaming agent in topical formulations. |
| Distearoylphosphatidylcholine, Dl-? | — | No | — |
| Edetate Disodium | Chelating Agent | No | Also known as EDTA. Binds metal ions to prevent degradation of active ingredients and preserve product stability. |
| 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. |
| Hamamelis Virginiana Top Water | Skin Conditioner | No | Witch hazel distillate, a plant-derived astringent used in topical formulations to soothe and tone the skin. |
| 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. |
| Paraffin | Stiffening Agent | No | A petroleum-derived wax used to adjust the consistency of ointments and as a coating agent. |
| Phenoxyethanol | Preservative | No | A synthetic preservative used to prevent microbial growth in topical and some oral formulations. Can cause skin irritation in sensitive individuals. |
| Sodium Tripolyphosphate? | — | No | — |
| Tocopherol | Antioxidant | No | Natural vitamin E. Used as an antioxidant to protect active ingredients from oxidation and extend product shelf life. |
| Trolamine | Emulsifier/pH Adjuster | No | Triethanolamine. Used as an emulsifier and pH adjuster in topical creams and lotions. |
| 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. |