REAROYA Black Hair Dye Shampoo – Plant-Based Formula 500ml

Transform your hair color effortlessly with the REAROYA Black Hair Dye Shampoo — a 2-in-1 formula that cleanses and colors in a single wash. Enriched with natural plant-based ingredients, this innovative shampoo delivers rich, long-lasting black color while conditioning your hair at the same time.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Why You'll Love It

• Plant-Powered Formula: Blended with cowpox leaf extract, biological cactus, traditional herbal botanicals, black sesame oil, and ginseng for a gentle yet effective coloring experience.
• Cleanses & Colors in One Step: No need for a separate dye process — simply shampoo, leave on for 15–25 minutes, and rinse for beautifully black, shiny hair.
• Scalp-Friendly: Formulated without harsh irritants; does not stain the scalp during the coloring process.
• Repairs & Nourishes: Works to restore and condition hair with each wash, leaving strands smooth, healthy, and lustrous.
• No High-Concern Chemicals: Free from high-concern chemical ingredients — suitable for all hair types, for both men and women.
• Long-Lasting Color: Delivers permanent-looking black color that holds up beautifully with regular use.
• More Convenient Than Traditional Dye: Skip the salon-style mixing kits — this all-in-one shampoo makes at-home coloring simple and mess-free.

Product Specifications

• Brand: REAROYA
• Net Weight: 500ml
• Dimensions: 22.5 × 8.5 × 6 cm
• Hair Type: All hair types
• Gender: Unisex
• Country of Origin: Made in China

How to Use

1. Apply the shampoo evenly to damp hair from roots to tips.
2. Massage gently and leave on for 15–25 minutes to allow the color to develop.
3. Rinse thoroughly with warm water.
4. For best results, repeat use over several washes to deepen and maintain color vibrancy.

Color Guide & Tips

• For deep black results, this shampoo works best on natural or lightly colored hair.
• If your hair has been previously dyed very dark or processed with black oil treatments, additional treatments may be needed first.
• Brown, burgundy, and warm tones are best suited to natural hair with a dark base and may not fully cover very light or white hair.
• Dark coffee and wine-red shades work best on white or very light hair — the lighter your hair, the more vivid the resulting color.
• Ensure the product is dispensed from both chambers of the bottle for proper mixing and full color activation.
• Follow the included instructions carefully for optimal results. Leaving the product on longer and using in a warm environment can improve color uptake on thick or coarse hair.

Important Notes

• Slight color variations may appear due to monitor display differences.
• Allow minor dimensional deviations due to manual measurement.
• Wholesale, dropshipping, and OEM orders are available — contact us for details.

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For more information on safe cosmetic and hair color product use, visit the U.S. Food & Drug Administration – Hair Dye Products page.

Learn more: Human hair color

Frequently Asked Questions

Q: How long does the REAROYA Black Hair Dye Shampoo take to color hair?

A: Leave the shampoo on your hair for 15–25 minutes after applying to allow full color development. Rinse thoroughly with warm water. For thicker or coarser hair types, extending the leave-in time or applying in a warmer environment can improve results.

Q: Will the black hair dye shampoo stain my scalp?

A: The REAROYA formula is designed to color hair strands without staining the scalp. Its plant-based, scalp-friendly ingredients make the application process gentle and mess-free compared to traditional hair dyes.

Q: Is this black shampoo suitable for all hair types and genders?

A: Yes! This unisex formula is suitable for all hair types — whether straight, wavy, curly, fine, or coarse. Both men and women can use it as part of their regular hair care routine.

Q: How many washes does one 500ml bottle provide?

A: A 500ml bottle offers generous coverage for multiple wash sessions. Usage frequency will vary depending on hair length and thickness, but most users find it lasts for several weeks of regular use.