Making an eczema cream at home requires combining three types of ingredients: humectants that pull moisture into the skin, emollients that soften and repair the skin barrier, and occlusives that seal everything in. Getting the balance right matters, but so does safety. Any cream containing water can grow bacteria and mold within days without a preservative, and applying a contaminated product to broken eczema skin creates a real risk of infection from organisms like Staphylococcus aureus.
A well-made eczema cream isn’t complicated, but it does require more care than melting some coconut oil and calling it done. Here’s how to approach it properly.
Why the Right Oils Matter
Not all plant oils are equal for eczema-prone skin. The key distinction is the ratio of linoleic acid to oleic acid. Linoleic acid is the most abundant fatty acid in healthy skin’s outer layer, where it gets built directly into ceramides, the lipid molecules that hold your skin barrier together. Oils high in linoleic acid support that barrier. Oils high in oleic acid can actually disrupt it.
Sunflower seed oil and safflower oil are both rich in linoleic acid, making them strong choices as a base. Grapeseed oil and evening primrose oil also have favorable profiles. Coconut oil works well as an occlusive layer but is high in saturated fats rather than linoleic acid, so it’s better used as a secondary ingredient for moisture sealing rather than the primary carrier.
Avoid olive oil as a base. It’s predominantly oleic acid and has been shown to impair barrier function in people with compromised skin.
The Three Ingredient Categories
Every effective eczema cream needs ingredients from three categories working together.
- Humectants draw water into the skin. Glycerin is the most accessible and well-tolerated option. Aloe vera gel and hyaluronic acid also work. Used alone, humectants can sting or pull moisture out of already-dry skin, so they always need to be paired with occlusives.
- Emollients fill in cracks in the skin barrier and soften the surface. Your carrier oils (sunflower, safflower) serve this role, along with shea butter and ingredients like colloidal oatmeal, which has anti-inflammatory and barrier-protective properties and is FDA-approved as an over-the-counter skin protectant.
- Occlusives form a physical seal over the skin to prevent water loss. Petrolatum (petroleum jelly) is the gold standard. Beeswax, shea butter, and dimethicone also work. Without an occlusive layer, the moisture you add will simply evaporate.
The principle is straightforward: get moisture in, then lock it down. As a general structure, your oil phase (emollients and occlusives) should make up roughly 20 to 30 percent of the total formula, your water phase (including humectants) around 65 to 75 percent, with the remainder being your emulsifier and preservative.
A Basic Eczema Cream Formula
This produces approximately 100 grams of cream. You’ll need a kitchen scale that measures in grams, two heat-safe glass containers, a small whisk or immersion blender, and sanitized jars for storage.
Oil Phase
- Sunflower seed oil: 12 g
- Shea butter: 8 g
- Emulsifying wax (BTMS-50 or Olivem 1000): 5 g
Water Phase
- Distilled water: 65 g
- Glycerin: 5 g
- Colloidal oatmeal: 1 g
Cool-Down Phase
- Broad-spectrum preservative: per manufacturer’s recommended percentage (typically 0.5 to 1.5 g depending on the product)
Colloidal oatmeal at 1 percent has been clinically tested and shown to reduce eczema severity when applied regularly. You can find it as a fine powder sold specifically for skincare formulation.
Step-by-Step Process
Start by sanitizing everything: containers, utensils, jars, and your hands. Bacteria like Staphylococcus aureus and Pseudomonas are common contaminants in personal care products and pose a genuine danger when they contact broken eczema skin.
Place the oil phase ingredients in one heat-safe container and the water phase ingredients in another. Heat both in a double boiler or water bath until they reach the same temperature, between 70°C and 75°C (158°F to 167°F). The emulsifying wax needs to melt completely, and both phases must be at matching temperatures for a stable emulsion to form.
Pour the water phase slowly into the oil phase while stirring or blending continuously. Keep blending for several minutes. The mixture will turn opaque and start to thicken as it cools. Continue stirring intermittently as it cools to room temperature. This prevents the oil and water from separating.
Once the cream drops below 40°C (104°F), add your preservative. Most preservatives break down at higher temperatures, so adding them too early renders them useless. Stir thoroughly to distribute evenly.
Transfer to sanitized jars. The cream should be smooth, white, and hold its shape without pooling liquid on the surface. If it separates, the most likely causes are mismatched temperatures during emulsification or insufficient blending time.
Preservatives Are Not Optional
Any formula containing water will support bacterial and fungal growth. This isn’t a matter of weeks. Unpreserved creams can become contaminated within days, and you won’t necessarily see or smell anything wrong. Applying a contaminated cream to eczema-damaged skin, which often has micro-tears and open patches, invites infection from organisms including Staphylococcus, Streptococcus, and Pseudomonas.
Look for a broad-spectrum preservative that covers gram-positive bacteria, gram-negative bacteria, mold, and yeast. Blended preservative systems designed for natural skincare, such as combinations of gluconolactone with sodium benzoate, or dehydroacetic acid with benzyl alcohol, provide this coverage. Follow the manufacturer’s recommended usage rate precisely. More is not better and can cause irritation.
Vitamin E and rosemary extract are antioxidants, not preservatives. They slow oil rancidity but do nothing to prevent microbial growth in a water-containing product.
Getting the pH Right
Healthy skin sits at an acidic pH between 4 and 6. Eczema-affected skin tends to shift toward neutral or slightly alkaline, which worsens barrier dysfunction and inflammation. Your finished cream should ideally fall between pH 4.5 and 5.5 to support the skin’s natural acid mantle rather than work against it.
You can test pH with inexpensive paper strips or a digital meter. If your cream is too alkaline, a tiny amount of citric acid dissolved in distilled water can bring it down. Adjust in small increments and retest.
Ingredients to Leave Out
Fragrance is the single biggest category of contact allergens in skincare. The European Commission lists 26 specific fragrance compounds as allergens, and many of them are naturally present in essential oils. Lavender, tea tree, chamomile, citrus oils, and cinnamon-derived ingredients all contain compounds with documented sensitization potential. For eczema-prone skin, the safest approach is to skip fragrance entirely, including essential oils marketed as “natural” or “therapeutic.”
Also avoid dyes, harsh preservatives like formaldehyde releasers, and exfoliating acids like glycolic or salicylic acid. These are fine in products for intact skin but can cause stinging and flares on compromised eczema skin.
Storage and Shelf Life
Store your cream in a cool, dark place. A properly preserved cream in a sanitized jar should remain stable for about three months. Using a pump or squeeze bottle instead of a jar reduces contamination from fingers. If the cream changes color, develops an off smell, or separates after initially being stable, discard it.
Label each batch with the date you made it. If you’re making cream for a child or someone with severe eczema, consider smaller batches that get used up quickly rather than large quantities that sit for weeks.
Limitations of Homemade Creams
A well-formulated homemade cream can serve as a daily moisturizer and barrier support. It cannot replace prescription treatments for moderate to severe eczema. Commercial ceramide-containing moisturizers have clinical data showing they reduce eczema severity, and the specific ceramide blends they use (matching the 12 subclasses found in human skin) are difficult to replicate at home. People with eczema have reduced ceramide levels and shorter ceramide chain lengths in their skin barrier, which contributes directly to increased permeability and inflammation.
If your eczema is well-controlled and you’re looking for a daily moisturizer you can customize, a homemade cream is a reasonable project. If you’re dealing with frequent flares, weeping patches, or signs of skin infection, a homemade product isn’t the right starting point.