Dissolving Ingredients in Scalp Oil Formula

Regarding your questions about dissolving Clover Flower Extract (Biochanin A 98%) and Saw Palmetto (Fatty Acids 45%) in your oil-based scalp massage formula:

Clover Flower Extract (Biochanin A 98%)

Your understanding is correct. Clover Flower Extract (Biochanin A 98%) is soluble in Dimethyl Isosorbide (DMI). You can dissolve the extract in DMI first before incorporating it into your oil blend.

Regarding heat, this ingredient can withstand heat up to 80°C during the mixing process. However, for long-term storage, it should be kept in a cool place away from light and heat to maintain its stability.

The recommended usage rate for Clover Flower Extract (Biochanin A 98%) is typically 0.1-0.5%, with 0.5% being recommended for optimal results.

Saw Palmetto (Fatty Acids 45%)

Since your Saw Palmetto extract is standardized to fatty acids and your formula is oil-based, the fatty acids should generally be soluble directly in your oil blend (Jojoba Oil, Grape Seed Oil, etc.).

If you encounter difficulty dissolving it directly, you could consider using a co-solvent or penetration enhancer to help incorporate it into the oil phase. Dimethyl Isosorbide (DMI), which you are already considering for the Clover Flower Extract, is soluble in various oils (like mineral oil and silicone oil) and can act as a carrier. Another option explicitly suitable for oil-soluble ingredients and dissolving in oil is Laurocapram (Oil-Soluble). You could try dissolving the Saw Palmetto extract in a small amount of one of these solvents before adding it to the main oil phase.

Remember to test the solubility with your specific Saw Palmetto extract product, as the exact composition can vary.