What is it? | Arrowroot starch (or arrowroot powder) is a fine, starchy powder. |
INCI | Maranta Arundinacea Root |
Appearance | Fine white powder |
Usage rate | Up to 100% |
Texture | Soft and silky |
Scent | Nothing noticeable |
Solubility | Insoluble |
Why do we use it in formulations? | In anhydrous products it helps reduce the greasy/oily skin feel, and in higher concentrations it can give the entire product a powdery, dry-touch finish and contribute to thickening.
In powdered cosmetics it acts as a diluent and improves slip. It can also be used in dusting powders, or even used as-is for a dusting powder. |
Do you need it? | No. |
Strengths | Ultra silky, inexpensive ingredient. |
Weaknesses | I can’t think of any, though it is easily replaced. |
Alternatives & Substitutions | Other starches like corn and wheat work well in its place. |
How to Work with It | Include it in the heated or cool down phase, or the grinding phase of powdered products. |
Storage & Shelf Life | Stored somewhere cool, dark, and dry, arrowroot starch should last up to three years. |
Tips, Tricks, and Quirks | Despite all my best efforts I’ve never been able to bake arrowroot biscuits that taste like the delicious arrowroot biscuits we give to kids. If you have a brilliant recipe, please get in touch! |
Recommended starter amount | 100g (3.3oz) |
Where to Buy it | Buy it from an online DIY ingredient supplier or Amazon. |