Let’s make a 100g trial batch. At this size, each percentage matches its weight in grams, which makes the recipe easy to follow and scale later.
Decyl Glucoside
10% | 10g
Our main cleansing ingredient, chosen for its mildness and lather. We’ll check and adjust the finished pH once everything is blended.
Cocamidopropyl Betaine
15% | 15g
A helpful partner to Decyl Glucoside, supporting the foam and mildness of the cleansing blend.
Xanthan Gum 200 Mesh
1% | 1g
Gives the wash its gel texture. A little patience during hydration helps it come together smoothly.
Vegetable Glycerine
3% | 3g
A moisture-attracting humectant that also helps us wet the Xanthan Gum evenly before adding water.
Aloe Vera Liquid-Gel
3% | 3g
A botanical skin-conditioning addition. Use our preserved liquid aloe ingredient for this recipe; fresh leaf gel behaves differently.
Geogard 221
1% | 1g
The preservative in our recipe, included to help protect your water-based hand wash during storage and use.
Deionised Water
Balance to 100% | up to 67g
The main liquid in the recipe. Keep a little back for the pH adjustment and final top-up.
Citric Acid (Anhydrous)
As needed, prepared as a 10% solution
Helps bring the finished pH down to 5.0–5.5. The amount of solution you use counts towards the final 100g batch.
What Else You’ll Need
- A digital scale reading to 0.01g, two clean bowls or beakers, and stirring utensils
- A small separate container and a dropper or pipette for the citric acid solution
- pH strips suited to the 4–7 range, or a suitable calibrated pH meter
- A clean standard liquid-soap pump bottle
The fixed ingredients total 33g. The remaining 67g is shared between plain Deionised Water and the full amount of Citric Acid solution you use. For example, if your pH adjustment takes 1g of solution, you’ll use 66g of plain water. The actual amount of solution depends on your pH readings.