Ingredient sourcing note: Some ingredients mentioned in this article are available from The Skin Science Company (theskinsciencecompany.com.au), an Australian cosmetic raw materials supplier. We recommend them based on the quality and availability of their products. We have no commercial, affiliate, or sponsorship relationship with them and receive no payment or commission for these mentions.
Finding a cleanser that effectively removes daily impurities without stripping the skin’s natural barrier can be a challenge for those with reactive or delicate complexions. This DIY oat milk cleanser offers a soothing, milky solution designed specifically for sensitive skin. By combining the anti-inflammatory properties of oats with ultra-mild surfactants, we can create a formulation that respects the skin’s pH while providing a luxurious, calming experience. Unlike many commercial cleansers that rely on harsh sulfates, this homemade version focuses on biocompatible ingredients that leave the skin feeling soft, hydrated, and calm.
The Science of Oats for Sensitive Skin
Oats (Avena sativa) have been used for centuries as a topical treatment for various skin conditions. In modern cosmetic chemistry, we focus on specific components within the oat that provide these benefits. Colloidal oatmeal is particularly prized for its high concentration of beta-glucans, which are polysaccharides that can penetrate deep into the skin to provide intense hydration and promote wound healing [1]. Additionally, oats contain avenanthramides, a group of phenolic antioxidants that are unique to oats and possess potent anti-inflammatory and anti-itch properties [2].
When we create a DIY oat milk cleanser, we are leveraging these soothing agents to counteract the potential irritation that can sometimes occur during the cleansing process. The lipids found in oats also help to replenish the skin’s barrier, making it an ideal choice for those prone to dryness or eczema. By using a “milk” base—either through a prepared oat extract or a house-made infusion—we ensure that the delivery system for our cleansing agents is as gentle as possible.
Key Ingredients for a Gentle Formulation
To build a successful cleanser for sensitive skin, every ingredient must serve a purpose without causing distress. We move away from high-foam anionic surfactants like Sodium Lauryl Sulfate (SLS) and instead opt for non-ionic or amphoteric alternatives that have larger molecular sizes, preventing them from penetrating the skin barrier and causing irritation [3].
| Ingredient Category | Recommended Choice | Function in Cleanser |
|---|---|---|
| Aqueous Base | Oat Milk or Oat Infusion | Soothing, hydrating vehicle |
| Mild Surfactant | Coco Glucoside | Gentle cleansing and low foam |
| Humectant | glycerin” target=”_blank” rel=”noopener sponsored”>Vegetable Glycerin | Draws moisture into the skin |
| Emollient | Sweet Almond Oil | Adds creaminess and dissolves oils |
| Preservative | Liquid Germall Plus | Broad-spectrum microbial protection |
Coco Glucoside is an excellent choice for a DIY oat milk cleanser because it is derived from renewable raw materials (coconut oil and fruit sugars) and is known for being exceptionally mild on the skin and eyes. When paired with a humectant like glycerin, it creates a “milky” texture that glides over the skin, lifting away dirt and excess sebum without disturbing the delicate acid mantle.
DIY Oat Milk Cleanser Recipe
This formulation is designed for intermediate formulators who are comfortable with weighing ingredients and adjusting pH. It yields a creamy, low-foaming cleanser that is suitable for daily use. Please ensure all your equipment is thoroughly cleaned and disinfected with 70% isopropyl alcohol before starting.
The Formula (100g Batch)
We recommend using a digital scale for accuracy. Percentages are provided so you can easily scale the recipe up or down.
| Phase | Ingredient | Weight (g) / % |
|---|---|---|
| A (Water) | Distilled Water (or Oat Infusion) | 75.5g |
| A (Water) | Vegetable Glycerin | 5.0g |
| A (Water) | Colloidal Oatmeal | 2.0g |
| B (Surfactant) | Coco Glucoside | 10.0g |
| B (Surfactant) | Sweet Almond Oil | 6.0g |
| C (Cool Down) | Liquid Germall Plus (Preservative) | 0.5g |
| C (Cool Down) | Lactic Acid (80% solution) | q.s. (to pH 5.0-5.5) |
Instructions
- Prepare Phase A: In a sanitized beaker, combine the distilled water, vegetable glycerin, and colloidal oatmeal. Stir well until the oatmeal is fully dispersed and there are no clumps. If using a homemade oat infusion, ensure it has been strained through a very fine mesh or coffee filter to remove all particulates.
- Prepare Phase B: In a separate beaker, mix the Coco Glucoside and Sweet Almond Oil. Non-ionic surfactants like Coco Glucoside can help emulsify small amounts of oil into the water phase without needing a traditional emulsifying wax, though the mixture may remain slightly translucent or “milky.”
- Combine: Slowly pour Phase B into Phase A while stirring gently. Avoid vigorous whisking to prevent creating excessive foam.
- Check and Adjust pH: Use a calibrated pH meter to check the acidity. Sensitive skin thrives at a pH of around 5.0 to 5.5. If the pH is too high (which is common with glucosides), add lactic acid one drop at a time, stirring and re-testing until you reach the target range.
- Add Preservative: Once the mixture is at room temperature and the pH is adjusted, add your Liquid Germall Plus and stir thoroughly.
- Package: Transfer your DIY oat milk cleanser to a sterilized pump bottle or squeeze tube.
Practical Tips for Sensitive Skin Care
When using your new cleanser, remember that the method of application is just as important as the ingredients. For those with reactive skin, mechanical irritation from scrubbing can be just as damaging as chemical irritation. Apply the cleanser to damp skin using light, circular motions with your fingertips. Rinse with lukewarm water—never hot—as high temperatures can strip the skin’s lipid barrier and trigger redness.
Because this formulation contains botanical extracts and water, preservation is non-negotiable. While it may be tempting to use “natural” preservatives, for a product used around the eyes and on compromised skin, a robust broad-spectrum preservative like Liquid Germall Plus is the safest choice to prevent the growth of mold, yeast, and bacteria. Always perform a patch test on a small area of skin before full application to ensure no individual sensitivities exist.
Conclusion and Next Steps
Creating your own DIY oat milk cleanser allows you to take control of your skincare routine, ensuring that only the most soothing and effective ingredients touch your face. This formula balances the traditional wisdom of oat-based remedies with modern green chemistry, providing a professional-grade result in your own home laboratory. As you become more comfortable with this base, you can experiment with adding other soothing botanicals like chamomile hydrosol or calendula extract to further customize the experience for your specific skin needs.
For high-quality, cosmetic-grade raw materials to create this cleanser and other professional DIY formulations, we recommend sourcing your ingredients from The Skin Science Company. Their extensive range of botanical extracts, mild surfactants, and reliable preservatives ensures that your handmade creations meet the highest standards of safety and efficacy.
References
[1] Cleveland Clinic: Colloidal Oatmeal: What Is It and What Are Its Benefits?
[2] U.S. Dermatology Partners: How Can Colloidal Oatmeal Help Your Skin?
[3] Formula Botanica: How to make a purifying foaming cleanser
