Suggested Moisturizer Formulation for Dry, Red, Peeling Skin

Based on your desired ingredients and the staff's recommendations, here is a suggested formulation approach to address dry, red, and peeling skin.

Your list of ingredients, plus the recommended Allantoin, provides a good foundation for a moisturizing and soothing product. Here are the suggested usage percentages for each ingredient:

• Hyaluronic Acid (Two Types): Use a total of 0.5-1% for multi-depth hydration without excessive stickiness (e.g., 0.25-0.5% Standard Molecule and 0.25-0.5% Small Molecule).
• Sodium Lactate: 3-5% to support Natural Moisturizing Factor (NMF) and enhance moisture retention.
• Sodium PCA: 1-2% as part of NMF, helps balance and hydrate the skin.
• Urea: 5-10% for very dry skin. Provides significant hydration and gentle exfoliation at this concentration. (If using Urea, consider stabilization with Gluconolactone or Triacetin for long-term storage or temperatures above 35°C).
• L-Carnitine: 1-3% to help balance moisture and gently assist skin cell turnover.
• Sea Kelp Extract: 1-3% for moisturizing, nourishing, strengthening the skin barrier, and reducing sensitivity.
• Glucosamine (Acetyl Glucosamine): 2-4%. Works well with Vitamin B3, aids hydration, and stimulates the skin's own Hyaluronic Acid production.
• Vitamin B3 (Niacinamide): 3-5% (can use up to 10% with Safe-B3™ grade). Helps reduce redness, strengthens the skin barrier, and increases hydration.
• Allantoin: 0.5% as recommended by the staff. Helps reduce irritation and resist allergies, suitable for sensitive skin.

Additional Recommendations:

• Total Actives Concentration: Keep the total concentration of all active ingredients below 30% of the formula, with water making up at least 70% to avoid a sticky texture.
• Formulation Base: The formula should primarily consist of water. You will also need a gelling agent or emulsifier (for a gel, lotion, or cream) and a preservative for stability and safety.
• Mixing: Most of these ingredients are water-soluble. Mix them into the water phase according to the instructions for each specific ingredient.
• pH Adjustment: Adjust the final pH of the formula to be skin-friendly (around 4-7) for optimal efficacy and gentleness.

Regarding whether any ingredient is excessive or missing:

• Using 1 gram of each Hyaluronic Acid type (if referring to 1g in a 100g formula, which is 1%) might result in a sticky texture, as noted by the staff. Reducing the total amount to the suggested 0.5-1% range will improve the texture while still providing excellent hydration.
• Your list of ingredients is very good for addressing dry, red, and peeling skin. The addition of Allantoin, as recommended by the staff, further enhances the soothing and anti-irritant properties, making the formula well-suited for sensitive skin.
• No critical ingredients appear to be "missing" for this purpose. The ingredients you have chosen cover hydration, barrier support, soothing, and gentle exfoliation effectively.

In summary, this list contains excellent and suitable ingredients for dry, red, and peeling skin. Adjust the percentages as suggested above and consider adding basic components like water, a thickener/emulsifier, and a preservative to create a complete and effective product.