Halloween doesn’t have to be all about sugar crashes and dodgy face paint. For us formulation nerds, it’s the perfect excuse to whip up something cosy, skin-loving, and wonderfully autumnal without the sticky mess.
This Pumpkin Spice Handwash is more than just a seasonal scent. It’s a gentle, moisturising formula designed with beginners in mind. If you’ve ever felt unsure about surfactants or how to blend essential oils safely, this is the formula to ease you in. It smells like autumn in a bottle, gently cleanses without drying out your hands, and is ideal for family use during germy season.
Dispense one pump onto wet hands. Lather gently and rinse thoroughly. Use daily as needed.

Here’s what you’ll need:
Iselux Ultra Mild – A gentle, pre-blended surfactant base that foams beautifully without stripping the skin
Glycerin – A classic humectant to keep hands soft and hydrated
Panthenol – Pro-vitamin B5, which helps soothe and repair your skin
SymbioSolv Clear Plus – A natural solubiliser to keep the essential oils safely dispersed
Orange Soap-Safe Colourant – For that classic pumpkin spice vibe
Rokonsal BSB-N – A broad-spectrum, skin-friendly preservative
Lactic Acid (as needed) – To bring the pH down to around 5.0-5.5 and naturally thicken the formula
Distilled Water – The rest of the formula
What you’ll need:
A few clean beakers or a mixing jug
A glass rod or spatula
A scale that measures to 0.01g
Gloves, goggles, and good ventilation (especially when working with essential oils)
A pump bottle (amber is perfect for the Halloween vibe)
This is where I purchased my ingredients:
Iselux® Ultra Mild– INCI: Aqua (and) Sodium Lauroyl Methyl Isethionate (and) Cocamidopropyl Betaine (and) Sodium Methyl Oleoyl Taurate (and) Lauryl Glucosides (and) Coco-Glucosides
Symbiosolv Clear Plus MB – INCI: Caprylyl/Capryl Glucoside, Aqua, Sodium Cocoyl Glutamate, Glyceryl Caprylate, Citric Acid, Polyglyceryl-6 Oleate, Sodium Surfactin
| Phase | Ingredient | Function | % w/w |
|---|---|---|---|
| A | Iselux Ultra Mild | Surfactant blend | 30.0 |
| B | SymbioSolv Clear Plus | Solubiliser | 5.0 |
| B | Sweet orange essential oil | Fragrance | 0.60 |
| B | Geranium essential oil | Fragrance | 0.20 |
| B | Ginger essential oil | Fragrance | 0.20 |
| B | Nutmeg essential oil | Fragrance | 0.20 |
| B | Cinnamon bark essential oil | Fragrance | 0.10 |
| B | Clove essential oil | Fragrance | 0.10 |
| C | Distilled water | Solvent | To 100% |
| C | Panthenol | Vitamin, moisturising | 1.0 |
| C | Glycerin | Humectant | 7.0 |
| D | Soap colourant - water-soluble - orange | Colourant | 0.05 |
| D | Rokonsal BSB-N | Preservative | 1.0 |
| E | pH adjuster | pH adjuster | qs |
Method:
Surfactant Phase (A)
Weigh your Iselux in a beaker.
Solubilise the essential oils (B)
In a separate container, mix all your essential oils with SymbioSolv Plus. This step is crucial for achieving even dispersion and ensuring safety.
Combine
Add the oil-solubiliser blend into your surfactant base. Mix gently until fully uniform.
Water Phase (C)
In a beaker, weigh the water. Add in the glycerin and the panthenol. Mix well.
Combine water with the surfactants
Add the water phase slowly to the surfactants, mixing carefully to avoid foam. The mixture should become slightly cloudy but well-blended.
Add the colourant (D)
Blend the orange colour into your surfactant mixture for a warm, festive glow.
Add the preservative. (D)
Adjust pH & thicken (E)
Check the pH and adjust using lactic acid. Aim for 5.0-5.5. This ensures the formula is skin-friendly and also helps it naturally thicken.
Bottle
Pour into your final container.
Let it settle
Let the handwash rest overnight to reduce bubbles and allow the scent to mellow.
No thickener needed – Iselux Ultra Mild thickens naturally when pH is adjusted. If you want it thicker, you can use a gum for it.
Pre-blended surfactant – Simplifies mixing and reduces formulation errors
Essential oil safety – Carefully calculated and diluted for rinse-off use
Bright and fun – The orange colourant brings the Halloween feel without fuss
This little project ticks off loads of beginner wins in one go: working with surfactants, solubilisers, preservation, and pH adjustment.
Not bad for a seasonal handwash, eh?
Once you’ve nailed this version, have a play with it.
Swap in lavender or mandarin for a softer scent if you’re making it for little ones.
Add a natural extract like calendula for extra soothing power
Try a festive green or red colourant for other seasons
The beauty of formulation is that once you understand the structure, you can tweak it to suit your needs and your family’s preferences.
SAFETY NOTE
This formula is intended for personal, rinse-off use and has been designed to stay within typical dermal limits for essential oils. However, cinnamon and clove oils are known skin sensitisers. If you have sensitive skin or are making this for children, consider reducing or substituting these oils with gentler alternatives.
Always patch test your final product before full use. If irritation occurs, discontinue use. Ensure you source essential oils with clear IFRA documentation and adjust usage accordingly based on your supplier’s certificate.
This blog is for educational purposes only and is not intended to replace cosmetic safety assessments required for commercial sales.
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