Stability and Clarity of Witch Hazel Toner with Tannic Acid and Vitamin B6

To ensure your toner remains clear and stable without precipitation, there are several critical factors you need to consider regarding the ingredients you've selected:

1. Solubility of Clover Flower Extract

The Clover Flower Extract (Biochanin A 98%) is a high-purity powder that is not water-soluble. If you add it directly to the Witch Hazel base, it will not dissolve and will cause cloudiness or sediment.

• Solution: You must first dissolve this extract in a solvent such as Isopentyldiol or Dimethyl Isosorbide (DMI) before adding it to the water phase.

2. Potential Interaction: Tannic Acid and Chitox-3000

There is a high risk of precipitation between PoreNin™ (Tannic Acid) and Chitox-3000 (Chitosan Oligosaccharide).

• Tannic acid is a polyphenol that often reacts with cationic (positively charged) molecules like Chitosan to form an insoluble complex (precipitation).
• Recommendation: Perform a small-scale "strip test" by mixing these two in water first to see if they cloud up or form particles. If they do, you may need to choose one or the other, or significantly reduce their concentrations.

3. pH Management and Stability

• Vitamin B6 (Pyridoxine Hydrochloride): This ingredient is naturally very acidic (pH 2-3). However, it is only stable within a pH range of 2-6.
• Coco-Preserve™: This preservative is most effective within a pH range of 4-8.
• Witch Hazel: Typically has a pH of 3-5.
• Adjustment: If the Vitamin B6 and Tannic Acid drop the final pH below 4.0, your preservative (Coco-Preserve™) may lose some efficacy, and the formula might become too irritating for the skin. You should aim for a final pH of around 4.0–4.5 and adjust using a pH buffer if necessary.

4. Temperature Sensitivity

Several of your ingredients are highly sensitive to heat:

• PoreNin™ (Tannic Acid), Vitamin B6, and Chitox-3000 must not be exposed to high temperatures.
• Coco-Preserve™ should not be heated above 50°C.
• Mixing Tip: Always mix these at room temperature (below 30-40°C).

5. Light Sensitivity

Vitamin B6 is extremely sensitive to light and will degrade quickly. To maintain the potency and clarity of your toner, it is essential to store the final product in an opaque or dark amber bottle.

Recommended Mixing Order:

1. Solvent Phase: Dissolve the Clover Flower Extract in Isopentyldiol or DMI.
2. Water Phase: Dissolve Pure MSM™, Vitamin B6, and Chitox-3000 into the Witch Hazel base at room temperature.
3. Combine: Slowly add the PoreNin™ (Tannic Acid) to the water phase and stir until clear.
4. Add Solvent Phase: Pour the dissolved Clover Flower Extract mixture into the water phase.
5. Preserve: Add Coco-Preserve™.
6. Final Check: Measure the pH and adjust to 4.0–4.5. Store in a light-protected container.