Underarm Cream Formulation using Aloe Vera Gel (Heavy)

Based on your request to convert a body deodorant spray formula into an underarm cream using Aloe Vera Gel (Heavy) as a base, and incorporating whitening and skin-smoothing ingredients for hand mixing, here is a suitable formulation and method.

Using Aloe Vera Gel (Heavy) is an excellent choice for hand mixing as it is a pre-made base that simplifies the process, eliminating the need for complex emulsification steps required for traditional creams or lotions.

Sample Underarm Cream Formula (Approximate Percentages)

This formula uses ingredients known for their whitening, skin-smoothing, and soothing properties, suitable for mixing into a gel base.

• Phase A (Base):
  • Aloe Vera Gel (Heavy): 85-90%
• Phase B (Actives - Add to Phase A):
  • Mild Preserved Eco™: 1.5% (Provides deodorant/antimicrobial function and acts as a preservative booster. This blend contains Ethylhexylglycerin, similar to the ingredient in the original spray link you provided, but is classified as preservative-free.)
  • Safe-B3™ (Niacinamide): 3-5% (Helps with skin brightening, reducing redness, improving skin barrier function, and can help improve the appearance of pores and texture.)
  • Sodium Ascorbyl Phosphate (Vitamin C SAP): 1-3% (A stable form of Vitamin C that offers whitening and antioxidant benefits.)
  • PreB5™ (Pantolactone, Pantoyl Lactone): 1-2% (A precursor to Vitamin B5, known for its soothing, moisturizing, and skin texture improving properties.)
  • Allantoin: 0.1-0.5% (A soothing and skin-conditioning ingredient that helps reduce irritation and supports tissue regeneration.)
  • Optional: A small amount of cosmetic-grade fragrance (follow supplier's recommended usage rate, typically <0.5%).

Instructions for Hand Mixing

1. Weigh or accurately measure the required amount of Aloe Vera Gel (Heavy) into a clean container.
2. Weigh or measure each ingredient from Phase B separately.
3. Add the ingredients from Phase B one by one into the Aloe Vera Gel base.
4. After adding each ingredient, stir thoroughly with a clean spatula or spoon until it is fully dispersed and the mixture is uniform before adding the next ingredient.
5. Continue mixing until all ingredients are incorporated and the cream is smooth and consistent.
6. Transfer the finished cream into a clean, airtight container.

Notes on Ingredients and Mixing

• Aloe Vera Gel (Heavy): This base already contains Purified Water, Vitamin B5 (Panthenol), and Allantoin, simplifying the formulation. The percentages listed in the formula above are for adding additional amounts of these actives (Niacinamide, SAP, Allantoin, PreB5™) and the preservative blend to the base gel.
• Hand Mixing: While convenient, hand mixing may not achieve the same level of ingredient dispersion or product stability as using a mechanical mixer. Ensure you stir thoroughly after each addition.
• Ingredient Solubility: The suggested ingredients are generally water-soluble or dispersible in a gel base. Ensure powders like Niacinamide, Sodium Ascorbyl Phosphate, Allantoin, and PreB5™ are fully dissolved by stirring patiently.
• pH Considerations: The efficacy and stability of actives like Sodium Ascorbyl Phosphate are pH-dependent. Aloe Vera Gel bases typically have a skin-friendly pH, but adding actives can alter it. For optimal results, checking and adjusting the pH (ideally to around 5.5-7.0 for this combination of actives) is recommended, but this requires a pH meter and adjusting agents, which may be beyond simple hand mixing.
• Preservation: Aloe Vera Gel (Heavy) is pre-preserved. Adding actives can sometimes challenge the preservative system. Mild Preserved Eco™ helps boost preservation. Always use clean equipment and containers.
• "Chicken Skin": Ingredients like Niacinamide and PreB5™ can help improve overall skin texture and hydration, which may reduce the appearance of "chicken skin".
• Replacement of Ingredients: Yes, using Aloe Vera Gel (Heavy) effectively replaces the need for a separate emulsifier like Light Lotion Maker, a silicone like Dimethicone 1Secs, and additional Purified Water, by providing a ready-to-use gel base.
• Testing: Always perform a patch test on a small area of skin before widespread use.

This formula provides a good starting point for creating a hand-mixed underarm cream with the desired properties.