Formulation Feedback

Here is feedback on your serum, cream, and cleansing oil formulations:

Serum Formulation

Your serum formulation and mixing method are generally correct.

• Mixing Method: Mixing the water-soluble ingredients (Water, Vitamin B3, N-Acetyl-D glucosamine) first, then adding the gel maker (Pro Polymer) to form the serum texture, and finally incorporating the preservative (Phenoxyethanol) and penetration enhancers (PE-1 Aqua, Pentylene glycol) is a suitable approach for this type of serum.
• PE-1 Aqua in a Water-Based Formula: Although PE-1 Aqua is typically mixed in the oil phase, its description indicates it has oil-like characteristics and can be used as part of the oil phase directly. Even in a formula without a significant oil phase, it can be incorporated as described in your steps.
• PE-1 Aqua and Pentylene Glycol: Yes, PE-1 Aqua can be used together with Pentylene glycol. They can work synergistically to enhance penetration.

Cream Formulation

Your cream formulation and mixing steps are correct, and the ingredients are compatible.

• Mixing Method: Separating into water and oil phases, mixing each phase, combining them to form the emulsion, and then adding heat-sensitive ingredients like Sym-White™ and the preservative Phenoxyethanol is the correct procedure.
• Sym-White™ Dissolution: Ensure that Sym-White™ is fully dissolved into the cream base by stirring or blending sufficiently. Undissolved particles can cause skin irritation.
• Vitamin B5 Concentration: Using Vitamin B5 at 5% might result in a sticky texture. Consider reducing the concentration to 3% and adding other moisturizers, or explore using D-Panthenol Care (Pro-Vitamin B5, 100% Liquid) or Vitamin B5 Extra-Lite if available, which are processed to reduce stickiness at higher concentrations.
• Measuring and Adjusting pH: You should measure the pH after the cream is fully mixed and has cooled down. You can adjust the pH by adding small amounts (drop by drop) of an appropriate acid or alkali solution, mixing thoroughly, and re-measuring until the desired pH is reached. Weighing the drops is not strictly necessary for small adjustments, but consistency is important if you need to replicate the formula.

Cleansing Oil Formulation

Here is feedback on your cleansing oil formulation:

• Mineral Oil Type: You can use Mineral Oil Light instead of a heavier type. However, heavier oils like Mineral Oil Heavy or LipidSoft™ Palm are generally more effective at dissolving and removing makeup. Using a lighter oil might require more effort to remove makeup.
• Fractionated Coconut Oil vs. Mineral Oil: Both Fractionated Coconut Oil and mineral oil are effective emollients and can be used in cleansing oils. Fractionated Coconut Oil is a natural triglyceride and provides a soft, smooth feel. Mineral oil is a petroleum derivative, is very stable, and non-comedogenic. The choice depends on your preference for ingredient source and the desired feel of the final product. For makeup removal, heavier oils (which could include a heavier grade of mineral oil or LipidSoft™ Palm) are often preferred.
• Omitting LipidSoft™ Palm: Yes, you can omit LipidSoft™ Palm. However, it contributes to the makeup dissolving ability of the cleansing oil, especially for heavier makeup. If you omit it, you might need to adjust the percentages of the other oils or accept potentially reduced cleansing performance.