Indigo Oil Dispersible Powdered Extract is derived from the flowering Indigofera tinctoria plant, also traditionally referred to as true indigo. Indigo Extract is known in the textile industry for the range of blue hues it produces when used as a botanical dye. In the personal care industry, it may be used as a natural dye in soaps and as a beneficial herbal extract in skin care formulations.
Indigo Oil Dispersible Powdered Extract is a natural source of beneficial phenolic compounds including tannins and gallic acid, flavonoids including quercitrin and myricetin, sterols and saponins. It may be used in soaps, creams, lotions, balms, bath salts, scrubs and other formulations to incorporate the phytochemicals and herbal benefits of the extract. We recommend doing several test batches to find the ideal usage rate for your product, as the extract will impart a characteristic hue to your formulation and may limit your usage rate.*
For Soapmaking Applications:
Several factors, including the base color of your recipe, will affect the final color achieved when using this extract.
The final result will also depend on which phase the extract is added to. Therefore, we recommend experimenting by creating different one-pound test batches so that you can compare the results achieved by adding the extract directly to the oil phase, steeping the extract in the lye solution and adding the extract to the combined phases at trace.
In our one-pound test batch, we found that adding 1/2 teaspoonof dry extract directly to the lye solution yielded a bar that softened to a medium slate blue hue after curing for four weeks. Our uncolored control batch was a light off-white shade after curing for four weeks.
During our experiments to test for color saturation, we found that we could achieve softer shades of blue by reducing the amount of extract to 1/2 teaspoon and adding it directly into the lye solution.
*Important Usage Note: While this extract may be used for its herbal benefits in personal care products such as creams, lotions and balms, the FDA does not allow its intentional use as a color additive in such products. It may be used as a natural botanical dye in soaps as the FDA does not regulate the manufacturing or labeling of soap. A soap is defined by the FDA as a product intended for cleansing the skin. It must be made from a combination of alkali (lye) and fats/oils, and it cannot contain detergent agents.
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