Thank you for providing the ingredient details. Based on the information retrieved, I can offer feedback on your formulations. The primary issue in both formulas is that the total percentage of ingredients exceeds 100%. In cosmetic formulation, all ingredients should sum up to exactly 100%, with Water Di typically being the final ingredient added to reach this total. Please correct the percentages in both formulas accordingly. Additionally, I still need the full name or INCI name for "MIST72" in the second formula to provide accurate feedback on that ingredient. Once these points are addressed, I can give more precise recommendations. However, based on the ingredients identified:

Formula 1: Skin Brightening Formula

• This formula contains effective whitening agents like Activated Resorcinol and 4MSK.
• With 25% Jojoba Oil and Glyceryl Stearate Citrate as an emulsifier, this formula is designed as an emulsion (cream or lotion), not a clear serum. The high oil percentage will result in a relatively rich texture.
• Considerations & Recommendations:
  • Activated Resorcinol: Requires a pH of 4.5-5.5 for optimal efficacy and stability. It is light-sensitive and prone to discoloration. It is highly recommended to add 0.2% Disodium EDTA to the formula to help prevent discoloration and improve stability, as per the ingredient description. Packaging in opaque containers is also advised.
  • 4MSK: Dissolves in water and can affect the viscosity of gels/creams.
  • Mild Preserved Eco: The usage rate of 0.5% is below the recommended 1.0-1.5% for general preservation. Increase Mild Preserved Eco to at least 1.0% to ensure adequate preservation.
  • Adjust Water Di percentage to reach 100% total.
  • If a lighter texture is desired, reduce the Jojoba Oil percentage and adjust the emulsifier/add a thickener accordingly.
  • Ensure the final pH is within the 4.5-5.5 range to support Activated Resorcinol's function.

Formula 2: Hydrating & Anti-Aging Serum

• This formula features a good blend of hydrating ingredients (Hyaluronic Acid, HydroAlgae, Glycerin, Beta Glucan) and anti-aging actives (Pure-Adenosine, Japanese Cedar).
• "MIST72": Please provide the full name or INCI name for this ingredient.
• Considerations & Recommendations:
  • Hyaluronic Acid (China): This grade is cost-effective. 0.5% is suitable for very dry skin. For normal hydration, a lower percentage might suffice, or consider combining with different molecular weights (e.g., Nano) for multi-depth hydration.
  • Pure-Adenosine & Japanese Cedar: Require a pH of 3.5-6.5.
  • Beta Glucan: Requires a pH of 5-7.
  • pH Adjustment: To ensure all these actives are effective and compatible, aim for a final pH in the range of 5.0-6.0.
  • Usage rates for HydroAlgae (2%), Pure-Adenosine (1.0%), Japanese Cedar (1%), and Beta Glucan (5%) are within their recommended ranges.
  • Adjust Water Di percentage to reach 100% total.
  • Consider adding a chelating agent like Disodium EDTA (0.1-0.2%) to improve the stability of this water-based serum.

In summary, both formulas have promising ingredient combinations. The key steps are to correct the total percentages, identify "MIST72", adjust the preservative in Formula 1, and ensure the final pH is suitable for the active ingredients in both formulas. Once these adjustments are made, I can provide further detailed feedback.