Formulation Review

Thank you for sharing your formula. This is a simple yet potent serum formulation focusing on skin brightening and revitalization.

Here's a review of the ingredients and concentrations:

• Galactomyces Ferment Filtrate (93%): This is a very high concentration, which is within the allowed usage rate (1-100%). Galactomyces is known for its skin revitalizing and hydrating properties. Using it at such a high percentage means it forms the base of your serum. Be aware that high concentrations might feel slightly greasy on the skin, depending on the specific type of Galactomyces Ferment Filtrate used.
• Alpha Arbutin (2%): This is the recommended maximum concentration for effective skin brightening. Alpha Arbutin works by reducing melanin production. It is important to ensure the final pH of your formula is between 3.5 and 6.5 for Alpha Arbutin to be stable and effective. Also, add Alpha Arbutin in the final step of mixing when the temperature is below 30°C.
• Butylene Glycol (5%): This acts as a solvent and humectant, helping to dissolve ingredients and add moisture. The concentration is within the recommended range (1-20%) and is compatible with the other ingredients.

Mixing Instructions:

1. Combine the Galactomyces Ferment Filtrate and Butylene Glycol.
2. Ensure the mixture's temperature is below 30°C before adding Alpha Arbutin.
3. Add the Alpha Arbutin and stir until fully dissolved.
4. Check the final pH to ensure it is between 3.5 and 6.5 for optimal Alpha Arbutin stability.

This formula provides a high dose of key active ingredients. It's a straightforward approach, suitable for those looking for concentrated effects from these specific ingredients.