Non-Aerosol Grey Hair Cover Spray Formulation Concept

A non-aerosol spray for covering grey hair typically uses temporary or semi-permanent color pigments dispersed in a liquid base that can be sprayed onto the hair. Unlike permanent hair dye, these products coat the hair surface and wash out after a few shampoos.

Key components for such a spray would generally include:

• Color Pigments: These provide the temporary color. Semi-permanent hair colorants are suitable for this purpose. Shades like Natural Black or Brown would be used to match hair color and cover grey.
• Liquid Base: Usually water-based, potentially with some glycols or alcohol to aid in application, drying time, and spreadability.
• Adhesion Promoters/Film-formers: Ingredients that help the color pigments adhere to the hair shaft and prevent smudging or easy wash-off. An ingredient like ColorFix™ can help semi-permanent colors stick better to the hair.
• Other Additives: May include preservatives, pH adjusters, conditioning agents, or shine enhancers.

Based on the available ingredients, products like Semi-Permanent Hair Colorant (Natural Black) or Semi-Permanent Hair Colorant (Brown) could serve as the color source. ColorFix™ could be included to improve color adhesion.

Please note that a complete, precise formula with specific percentages is not available. Developing a stable and effective spray formulation requires careful selection and balancing of all ingredients to ensure proper dispersion, sprayability, drying time, color payoff, and washability.