Brightening Cream Formulation with Niacinamide, Alpha Arbutin, and Vitamin C

Question

I would like a recommended formula and appropriate amounts for making 100g of brightening cream using the following ingredients:

Please provide the recommended ratios for each ingredient and basic mixing instructions.

Answer 1

To create an effective brightening cream using your requested ingredients, here is a suggested ratio:

Safe-B3™ (Vitamin B3, Niacinamide): 5g (5%) - Helps reduce redness, dark spots, and improves the skin barrier.
Alpha Arbutin (Switzerland): 2g (2%) - A highly effective whitening agent for a more even skin tone.
Ethyl Ascorbic Acid (Vitamin C): 3g (3%) - A very stable form of Vitamin C that helps brighten the skin and reduce spots.
Distilled Water: 10g - Used to pre-dissolve the active powders.
Finished Cream Base (e.g., Skin Barrier Cream Base): 80g - The main carrier for your active ingredients.

Since all three active ingredients are water-soluble powders, follow these steps:

Dissolve the Actives: Mix the Safe-B3™, Alpha Arbutin, and Ethyl Ascorbic Acid into the distilled water. Stir until the powders are completely dissolved and the liquid is clear.
Incorporate into Base: Gradually pour the dissolved solution into your chosen Finished Cream Base.
Homogenize: Stir or mix thoroughly (using a spatula or low-speed mixer) until the texture is uniform and smooth.
Check pH: It is critical to ensure the final pH of the cream is between 3.5 and 6.0. This range ensures the stability and efficacy of both Alpha Arbutin and Vitamin C.

Storage: Store the finished product in a cool, dark place to prevent the active ingredients from degrading due to light or heat.
Stability: For the best results with Vitamin C, it is recommended to add a chelating agent like Disodium EDTA (0.2%) to the water phase to help prevent oxidation.

You can explore more cream bases in the Cream, Lotion Base category.