Formulation Review for Skin Brightening

Your proposed formulation combining Alpha Arbutin 2%, Natural Moisturizing Amino Acids 5%, Licorice Root Extract 10%, and Hydrolyzed Soy Protein 5% with Double Hyaluronic Gel has good potential to help with skin brightening and hydration.

Here's a breakdown of the ingredients and their roles:

• Alpha Arbutin: This is a well-known skin brightening agent that works by reducing melanin production. Using it at 2% is an effective concentration for this purpose.
• Natural Moisturizing Amino Acids: These help to hydrate the skin and support its natural moisturizing factors, contributing to overall skin health and a smoother appearance.
• Licorice Root Extract: Certain compounds in licorice, like Glabridin, have skin brightening and anti-inflammatory properties. However, the concentration of 10% might be higher than typically recommended for potent extracts like Licorice Extract (Glabridin 4.5%, Water-Soluble). It's important to check the recommended usage rate for the specific licorice extract product you are using to ensure efficacy and avoid potential irritation.
• Hydrolyzed Soy Protein: This ingredient can help improve skin elasticity and hydration, supporting the skin's structure.
• Double Hyaluronic Gel: Ingredients like Double Hyaluron Liquid or Hyaluronic Acid Gel Base provide intense hydration, which is crucial for healthy, radiant skin and can enhance the overall appearance.

Suggestions for Enhanced Efficacy

To potentially boost the skin brightening effects and add further benefits, you could consider adding the following ingredients:

• Vitamin C Derivative: Ingredients such as Ascorbyl Glucoside or Ethyl Ascorbic Acid are powerful antioxidants that help brighten skin tone and can work synergistically with Alpha Arbutin.
• Niacinamide (Vitamin B3): This versatile ingredient helps reduce hyperpigmentation, strengthens the skin barrier, and has anti-inflammatory benefits.
• Gentle Exfoliant: Incorporating a mild exfoliant like Mandelic Acid or Lactic Acid can help remove dead skin cells, improving skin texture and allowing the brightening ingredients to penetrate more effectively.

Remember to check the recommended usage rates and compatibility of any additional ingredients you wish to add. Also, ensure the final pH of your formulation is within the stable range for Alpha Arbutin (typically 3.5-6.5) to maintain its effectiveness and prevent breakdown into hydroquinone.