| 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 | ?Uncertain — 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. |
| .alpha.-tocopherol Acetate, Dl- | Antioxidant | No | Synthetic vitamin E acetate (racemic form). Used as an antioxidant to protect active ingredients from degradation. |
| 1,2,6-hexanetriol? | Humectant/Plasticizer | No | A synthetic triol used as a humectant and plasticizer in topical and transdermal formulations. |
| Adipic Acid? | — | No | — |
| Aluminum Hydroxide | Antacid/Adjuvant | No | An aluminum salt used as an antacid ingredient and as an adjuvant in some vaccine formulations. |
| Butylated Hydroxytoluene | Antioxidant | No | BHT. A synthetic antioxidant used to prevent oxidative degradation of fats and oils in pharmaceutical products. Rare contact sensitivity reported. |
| Butylene Glycol | Humectant/Solvent | No | A synthetic glycol used as a humectant and solvent in topical formulations. Helps products spread smoothly on skin. |
| Candelilla Wax | Coating/Stiffening Agent | No | A plant-derived wax from the candelilla shrub. Used as a coating agent and to thicken formulations. Vegan alternative to beeswax. |
| Carbon Dioxide? | Propellant/Preservative | No | Used as a propellant in aerosol products and to displace oxygen in packaging to preserve product stability. |
| Dimethicone 20 | Skin Protectant | No | A silicone-based polymer used as a skin protectant, emollient, and anti-foaming agent in topical formulations. |
| Dimethylaminoethyl Methacrylate - Butyl Methacrylate - Methyl Methacrylate Copolymer? | Coating Agent | No | A methacrylic polymer (Eudragit E) that dissolves in acidic conditions. Used for taste-masking and moisture-protective coatings. |
| 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. |
| 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. |
| 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 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. |
| 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. |
| Isostearic Acid? | Emollient/Emulsifier | No | A branched-chain fatty acid used as an emollient and co-emulsifier in topical formulations. |
| Monosodium Glutamate Hydrate | Stabilizer/Buffer | No | MSG in hydrated form. Used as a stabilizer and buffering agent in some pharmaceutical formulations. May cause reactions in individuals with MSG sensitivity. |
| Monostearyl Citrate? | — | No | — |
| N,n-dimethylacetamide? | Solvent | No | An organic solvent used in transdermal and topical formulations to dissolve active ingredients. |
| Niacinamide | Skin Conditioner | No | Vitamin B3 (nicotinamide). Used as a skin-conditioning agent in topical formulations. Generally well tolerated. |
| Octyldodecanol? | Emollient/Solvent | No | A branched-chain fatty alcohol used as an emollient, solvent, and viscosity adjuster in topical formulations. |
| Phenol? | Preservative/Antiseptic | No | An antimicrobial agent used as a preservative in injectable formulations and as an antiseptic in topical products. |
| Ricinoleic Acid | — | No | — |
| Silicon Dioxide | Glidant | No | A mineral (silica) used to improve powder flow during tablet manufacturing. Also called colloidal silicon dioxide. |
| 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. |