Based on the technical data for Lithospermum Erythrorhizon Root Powder (Murasaki Powder), here are the details regarding its composition and behavior in formulation:
1. Approximate Shikonin Content
For a natural, non-standardized dried root powder like this one, the total shikonin content (including shikonin and its derivatives such as acetylshikonin) typically ranges between 1.0% and 1.4% of the dry root weight.
- Note: This is an estimate based on botanical literature for Lithospermum erythrorhizon. Because this product is a 100% natural ground root, the exact percentage can vary from batch to batch. If a precise concentration is required for your formulation, it is recommended to refer to the specific Batch Certificate of Analysis (COA).
2. Powder Base
The base of this product is 100% mechanically ground Lithospermum Erythrorhizon root.
- It does not contain external carriers such as maltodextrin or silica.
- The INCI name is Lithospermum Erythrorhizon Root, which confirms it is the raw botanical material rather than a spray-dried extract on a carrier.
3. Appearance in Water or Glycol (Haziness)
The product will appear hazy and opaque when dispersed in water or glycols (such as Glycerin, Propylene Glycol, or Butylene Glycol).
- Solubility: This powder is insoluble in both water and oil. It acts as a suspended botanical solid rather than a soluble dye.
- Dispersibility: While it can be "dispersed" (spread throughout the liquid), it will not dissolve to form a transparent solution. In glycols, the powder may wet more easily than in water, resulting in a smoother dispersion, but it will remain cloudy.
- Sedimentation: Over time, the particles will settle at the bottom of the container unless a thickening or suspending agent (such as Xanthan Gum or Carbomer) is used to keep them in suspension.
- Color & pH: The dispersion will typically be deep purple or red. Note that shikonin is pH-sensitive; it remains purple/red in acidic to neutral conditions but can shift toward blue in alkaline environments (pH > 7).
Formulation Recommendations
- Best Use: This powder is ideal for products where an opaque or "natural" botanical look is desired, such as clay masks, scrubs, opaque soaps, or thick creams.
- Avoid: It is not suitable for clear toners, transparent serums, or clear gels, as the insoluble root particles will create significant turbidity.
