| Dipropylene Glycol | Solvent/Humectant | ⚠️ Yes — Propylene Glycol | A synthetic glycol used as a solvent and humectant in topical formulations. |
| Peg/ppg-18/18 Dimethicone | Emulsifier/Skin Conditioner | ⚠️ Yes — PEG | A silicone-based emulsifier combining PEG and polypropylene glycol with dimethicone. Used in topical formulations for smooth application. |
| Propylene Glycol | Solvent/Humectant | ⚠️ Yes — Propylene Glycol | An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals. |
| Aluminum Oxide | Abrasive/Adsorbent | No | Alumina. Used as an adsorbent, abrasive, and processing aid in pharmaceutical manufacturing. |
| Benzyl Benzoate | Solvent/Preservative | No | An organic ester used as a solvent in injectable formulations and as a preservative. Can cause contact irritation. |
| Calcium Carbonate | Filler/Antacid | No | Chalk. Used as a filler, coating whitener, and antacid. Also provides a source of calcium. |
| Croscarmellose? | Disintegrant | No | Cross-linked carboxymethylcellulose used to help tablets break apart rapidly. Plant-derived cellulose polymer. |
| Cyclomethicone 5 | Emollient/Carrier | No | A volatile silicone that evaporates quickly, leaving a smooth feel. Used as a carrier and emollient in topical products. |
| Dimethicone 20 | Skin Protectant | No | A silicone-based polymer used as a skin protectant, emollient, and anti-foaming agent in topical formulations. |
| Disodium Citrate Sesquihydrate | Buffer | No | A sodium salt of citric acid used as a buffering agent to maintain pH stability in pharmaceutical solutions. |
| 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. |
| Formic Acid? | — | No | — |
| 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. |
| 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. |
| Lanolin Oil? | Emollient | No | An oil derived from sheep wool (lanolin). Used as an emollient and skin conditioner. Animal-derived — relevant for vegan patients. Can cause contact dermatitis in lanolin-sensitive individuals. |
| Limonene, (+)- | Fragrance/Solvent | No | A citrus-derived terpene used as a fragrance component and solvent. Can cause contact sensitization in some individuals. |
| Maltodextrin | Filler/Binder | No | A starch-derived carbohydrate used as a filler, binder, and coating agent. Typically derived from corn — may be relevant for corn-sensitive 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. |
| Potassium Sorbate | Preservative | No | A potassium salt of sorbic acid used to inhibit mold and yeast growth in pharmaceutical formulations. |
| Sodium Chloride | Tonicity Agent | No | Common table salt. Used to adjust the osmotic pressure of injectable and ophthalmic solutions to match body fluids. |
| Sorbic Acid | Preservative | No | An antimicrobial preservative used to inhibit mold and yeast growth. Generally well tolerated. |
| Stearic Acid | Lubricant | No | A fatty acid used as a lubricant in tablet manufacturing. |
| Tocopherol | Antioxidant | No | Natural vitamin E. Used as an antioxidant to protect active ingredients from oxidation and extend product shelf life. |