Body Foundation (Semi-Lotion, Long-Lasting, Dark Shade) Formulation Overview

Creating a long-lasting, dark-colored, semi-lotion body foundation is more complex than simply mixing pigment powder into a finished lotion base. Developing a stable foundation with good coverage and wear properties requires a specific formulation approach involving various ingredients combined through a precise process.

To make approximately 1 kg (1000g) of such a foundation, you would need to use different ingredients measured by weight according to a specific formula provided in percentages. The amount of each ingredient for a 1 kg batch is calculated based on its percentage in the formula.

Here are the main categories of ingredients typically needed for a semi-lotion foundation:

1. Pigments: These provide the color. For skin tones, Iron Oxides (Red, Yellow, Black) and Titanium Dioxide (for lightness and coverage) are commonly used. To achieve a dark shade, a higher proportion of black and red iron oxides relative to yellow and titanium dioxide would be needed. Pigments must be properly dispersed in the base (oil or water phase, or both) to ensure even color and prevent separation. Some pigments are available as pre-dispersed liquids or treated powders (like the FoundationPro™ series or ReadyMix™) which are easier to incorporate. Examples include Iron Oxides Red (FoundationPro™), Iron Oxides Yellow (FoundationPro™), Iron Oxides Black (FoundationPro™), ReadyMix™ Iron Oxides Black (Isononyl Isononanoate Based), and WaterMix™ Red (Iron Oxides Red).

2. Film Formers: These are essential for making the foundation long-lasting and transfer-resistant. They create a thin, flexible film on the skin that helps the product adhere. Relevant examples found include Vinyl Film (Medium Wear, Soft) (VP/Hexadecene Copolymer), which aids pigment dispersion and is suitable for color cosmetics, and Allianz OPT (Acrylates/C12-22 Alkyl Methacrylate Copolymer), which provides water and wear resistance in emulsion formulas.

3. Emulsifiers: These ingredients are necessary to blend the oil and water phases into a stable lotion (emulsion) and prevent them from separating over time.

4. Base Ingredients: This includes the main liquid components such as purified water, oils/emollients, and humectants that form the bulk of the lotion.

5. Thickeners and Stabilizers: These help control the consistency (viscosity) of the lotion and improve its stability.

6. Preservatives: Crucial for preventing microbial growth, ensuring the safety and shelf life of the product.

7. Other Additives: May include ingredients to improve texture (like fillers or powders), adjust pH, or provide other desired properties.

To make 1 kg, you would need a formula with ingredient percentages. For example, if a formula calls for 5% total pigments, you would need 50g of the pigment blend for a 1 kg batch.

Finding a precise, ready-to-use formula for a dark, long-lasting body foundation may require researching cosmetic formulation resources or adapting existing foundation/lotion recipes. Once you have a formula with percentages, you can calculate the required weight of each ingredient for 1 kg and then purchase the raw materials.

Based on the search results, here are some relevant products for pigments and film formers you might consider:

• Pigments:
  • Iron Oxides Red (FoundationPro™)
  • Iron Oxides Yellow (FoundationPro™)
  • Iron Oxides Black (FoundationPro™)
  • ReadyMix™ Iron Oxides Black (Isononyl Isononanoate Based) (Pre-dispersed in an oil base for easy mixing)
  • WaterMix™ Red (Iron Oxides Red) (Pre-dispersed in water, suitable for water-based formulas)
• Film Formers:
  • Vinyl Film (Medium Wear, Soft) (VP/Hexadecene Copolymer) (Helps create a flexible film and aids pigment dispersion)
  • Allianz OPT (Acrylates/C12-22 Alkyl Methacrylate Copolymer) (Provides water and wear resistance)

Successful formulation also involves using appropriate mixing techniques, managing heating/cooling phases for emulsions, and conducting stability testing on the final product.