Sarna (Colloidal Oatmeal) 20 mg

LOTIONTOPICALCrown Laboratories, Inc.NDC: 0316-0256Updated: Mar 2026

Active Ingredient

OATMEAL — 20 mg

Inactive Ingredients (Fillers)

⚠️ 3 ingredients flagged as common allergens

Cetostearyl Alcohol

⚠️ Yes — Stearyl Alcohol

Emulsifier/Stiffening Agent

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.

Medium-chain Triglycerides

⚠️ Yes — Coconut

Solvent/Vehicle

Fatty acid esters derived from coconut or palm kernel oil. Used as a solvent and vehicle in oral and topical formulations. May be relevant for individuals with coconut sensitivity.

Propylene Glycol

⚠️ Yes — Propylene Glycol

Solvent/Humectant

An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals.

1,2,6-hexanetriol?

Humectant/Plasticizer

Allantoin

Skin Protectant

Anhydrous Dextrose

Butylated Hydroxytoluene?

Antioxidant

C12-15 Alkyl Lactate?

Emollient

Carbomer Copolymer Type A (allyl Pentaerythritol Crosslinked)?

Thickener/Gelling Agent

Citric Acid Monohydrate

pH Adjuster/Buffer

Dimethicone 20

Skin Protectant

Ethyl Acetate

Fructose

Glycerin

Humectant/Solvent

Glyceryl Monostearate

Emulsifier

Hamamelis Virginiana Top Water

Skin Conditioner

Hyaluronate Sodium

Moisturizer/Viscosity Agent

Maltose Anhydrous

Polyoxyl 20 Cetostearyl Ether

Emulsifier

Shea Butter

Emollient

Sodium Chloride

Tonicity Agent

Sodium Hydroxide

pH Adjuster

Sodium Lactate

Sodium Pyrrolidone Carboxylate

Humectant

Trehalose Dihydrate

Stabilizer/Cryoprotectant

Urea

Ingredient	Purpose	Common Allergen?	Description
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.
Medium-chain Triglycerides	Solvent/Vehicle	⚠️ Yes — Coconut	Fatty acid esters derived from coconut or palm kernel oil. Used as a solvent and vehicle in oral and topical formulations. May be relevant for individuals with coconut sensitivity.
Propylene Glycol	Solvent/Humectant	⚠️ Yes — Propylene Glycol	An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals.
1,2,6-hexanetriol?	Humectant/Plasticizer	No	A synthetic triol used as a humectant and plasticizer in topical and transdermal formulations.
Allantoin	Skin Protectant	No	A compound that promotes wound healing and cell regeneration. Used as a skin protectant and soothing agent in topical formulations.
Anhydrous Dextrose	—	No	—
Butylated Hydroxytoluene?	Antioxidant	No	BHT. A synthetic antioxidant used to prevent oxidative degradation of fats and oils in pharmaceutical products. Rare contact sensitivity reported.
C12-15 Alkyl Lactate?	Emollient	No	A synthetic ester used as an emollient and skin-conditioning agent in topical formulations.
Carbomer Copolymer Type A (allyl Pentaerythritol Crosslinked)?	Thickener/Gelling Agent	No	A crosslinked acrylic acid copolymer used to create clear gels and thicken topical formulations.
Citric Acid Monohydrate	pH Adjuster/Buffer	No	Citric acid in its hydrated form. Used to adjust acidity and as a buffering agent. Derived from citrus fruits or fermentation.
Dimethicone 20	Skin Protectant	No	A silicone-based polymer used as a skin protectant, emollient, and anti-foaming agent in topical formulations.
Ethyl Acetate	—	No	—
Fructose	—	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.
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.
Maltose Anhydrous	—	No	—
Polyoxyl 20 Cetostearyl Ether	Emulsifier	No	A non-ionic surfactant (Cetomacrogol) used to emulsify and stabilize creams and ointments.
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.
Sodium Chloride	Tonicity Agent	No	Common table salt. Used to adjust the osmotic pressure of injectable and ophthalmic solutions to match body fluids.
Sodium Hydroxide	pH Adjuster	No	A strong alkali used to adjust the pH of pharmaceutical solutions. Present only in trace amounts in the final product.
Sodium Lactate	—	No	—
Sodium Pyrrolidone Carboxylate	Humectant	No	Sodium PCA. A natural moisturizing factor component used as a humectant in topical formulations.
Trehalose Dihydrate	Stabilizer/Cryoprotectant	No	A natural disaccharide used to stabilize proteins in freeze-dried formulations and to protect biological products.
Urea	—	No	—

Exclusion Groups

This medication contains ingredients flagged in the following groups. Patients with these sensitivities should consult their prescriber.

🌾Gluten 🔴Alpha-Gal Syndrome 🥜Peanut / Tree Nut 🍬Polyols (GI)🌱Not Vegan ☪️Halal Concern ✡️Kosher Concern 🥦Not Vegetarian

Dietary & Safety Information

Alpha-Gal Syndrome Risk

1 ingredient may contain mammalian-derived components:

Glycerin(Possible — Glycerin can be plant- or animal-derived (verify source).)