| Coconut Oil | Emollient/Vehicle | ⚠️ Yes — Coconut | A plant-derived oil used as an emollient, vehicle, and solvent in topical and oral formulations. May be relevant for individuals with coconut allergy (rare but documented). |
| .alpha.-tocopherol Acetate | Antioxidant | No | Vitamin E acetate. Used as an antioxidant to protect active ingredients from degradation during storage. |
| Allantoin | Skin Protectant | No | A compound that promotes wound healing and cell regeneration. Used as a skin protectant and soothing agent in topical formulations. |
| Butane | Propellant | No | A hydrocarbon gas used as a propellant in aerosol products such as topical sprays. |
| Cinnamon Oil? | — | No | — |
| 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. |
| 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. |
| 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 Isostearate? | Emulsifier | No | A glycerin ester used as an emulsifier and skin-conditioning agent in topical formulations. |
| 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. |
| Isobutane | Propellant | No | A hydrocarbon gas used as a propellant in aerosol products such as topical sprays and foam formulations. |
| Isopropyl Myristate | Emollient/Penetration Enhancer | No | A synthetic ester used as an emollient and to enhance penetration of active ingredients through the skin. |
| Propane | Propellant | No | A hydrocarbon gas used as a propellant in aerosol products such as topical sprays and foams. |
| Propylene Carbonate | Solvent | No | An organic solvent used in transdermal patches and topical formulations to dissolve active ingredients. |
| Shea Butter | Emollient | No | A fat extracted from the nut of the African shea tree. Used as an emollient and moisturizer in topical formulations. Tree nut-derived — may be relevant for individuals with tree nut allergies. |
| Silica Dimethyl Silylate | — | No | — |
| Soybean Lecithin | Emulsifier | No | A phospholipid mixture extracted from soybeans, used as an emulsifier and wetting agent. Derived from soy — must be avoided by individuals with soy allergy. |
| Stearalkonium Chloride? | Conditioning Agent | No | A quaternary ammonium compound used as a conditioning and antistatic agent in topical formulations. |