Gentle Gel for Sensitive, Dull, Oily Skin with Rashes

You're on the right track with your base ingredients! Water, Reshape Gel, Sea Kelp Extract, Aloe Vera Extract, and Alpha Arbutin form a good foundation for a soothing and brightening gel.

Here's how the ingredients you've chosen help:

• Reshape Gel: Creates a pleasant, non-sticky gel texture.
• Sea Kelp Extract & Aloe Vera Extract: Provide excellent hydration and soothing properties, which are great for sensitive skin and reducing irritation/rashes.
• Alpha Arbutin: Helps to brighten the skin and reduce dullness.

To address your specific concerns of sensitive skin, rashes, dullness, and oiliness, and to ensure the gel is stable and safe, consider adding the following ingredients:

• Niacinamide (Vitamin B3): This is a versatile ingredient that helps reduce oiliness, minimize redness and hyperpigmentation (further helping with dullness), strengthen the skin barrier, and reduce irritation. It's very beneficial for both oily and sensitive skin.
• Allantoin: Known for its soothing and anti-irritant properties, Allantoin can help calm down rashes and reduce overall skin sensitivity.
• Hyaluronic Acid: While Aloe Vera and Sea Kelp are hydrating, adding Hyaluronic Acid boosts moisture retention without feeling heavy or oily, keeping the skin hydrated and plump.
• Preservative (e.g., Mild Preserved Eco): Any water-based product needs a preservative to prevent bacterial and fungal growth. Choosing a gentle option like Mild Preserved Eco is important for sensitive skin.

You could also consider adding Centella Asiatica Extract (CICA), another excellent ingredient for soothing and reducing inflammation, which can help with rashes.

General Formulation Tips:

• Ensure all water-soluble ingredients are fully dissolved in the water phase before adding the gel maker.
• Follow the specific mixing instructions for each ingredient, especially the gel maker and preservative. Reshape Gel typically requires heating the water phase before adding the gel maker.
• Maintain the pH of the final product within the recommended range for all ingredients (generally between 4.0-6.5 is a good target for most of these ingredients).
• Always perform a patch test before using the final product on your face, especially with sensitive skin.

By incorporating these additional ingredients, you can create a well-rounded gel formula that addresses your skin concerns effectively while remaining gentle.