REAROYA Black Hair Dye Shampoo – Natural Plant Formula 500ml

REAROYA Black Hair Dye Shampoo is a 2-in-1 coloring and cleansing formula enriched with natural plant-based ingredients. Simply wash your hair and achieve rich, deep black color in just 15–25 minutes — no separate dye process needed. Gentle enough for all hair types, it nourishes as it colors, leaving hair looking shiny, healthy, and vibrant.

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.

Key Features

• Plant-Powered Formula: Infused with a blend of cowpox leaves, biological cactus extract, traditional herbal botanicals, black sesame oil, and ginseng for a nourishing coloring experience.
• 2-in-1 Wash & Color: Colors and conditions simultaneously — no need for separate products, saving you time and money.
• Scalp-Friendly: Designed to deposit color on the hair strand without staining the scalp, and formulated with no high-concern chemicals for a gentle application.
• Long-Lasting Results: Delivers rich black tones with a lasting color effect that keeps hair looking lustrous and vibrant.
• Repairs & Nourishes: Helps restore moisture and improve overall hair texture with every wash, leaving strands smooth and shiny.
• Easy Application: Just apply, wait 15–25 minutes, and rinse — no complicated mixing or developer needed.
• Unisex Design: Suitable for all genders and all hair types.

Specifications

• Brand: REAROYA
• Net Volume: 500ml
• Dimensions: 22.5 × 8.5 × 6 cm
• Gender: Unisex
• Hair Type: All
• High-Concern Chemicals: None
• Country of Origin: Made in China

How to Use

1. Shake the bottle and apply evenly throughout damp or dry hair.
2. Leave on for 15–25 minutes to allow the color to develop fully.
3. Rinse thoroughly with water.
4. Repeat regularly for deeper, longer-lasting color results.

Color Guide

• Black: Covers all natural and previously dyed hair effectively.
• Brown / Burgundy / Bright Purple: Best suited for naturally dark (undyed) hair. Cannot cover white or grey hair, and cannot be used over previously darkened hair.
• Dark Coffee / Red Wine: Designed specifically for grey or white hair. The more white/grey the hair, the more vivid the result. On predominantly dark hair, the color appears as a subtle tint visible in sunlight.

Important Notes

• If only one side of the dual-nozzle dispenses product, squeeze more firmly to ensure both reagents are released simultaneously for proper color activation.
• Once reagents 1 and 2 are mixed and exposed to air, use within 3 days to avoid oxidation and reduced coloring effectiveness.
• Follow instructions carefully — uneven application or insufficient processing time may affect results.
• Hair that is very thick, coarse, or exposed to very cold temperatures may require a longer processing time.
• Manual measurement may result in slight size deviations. Monitor color accuracy may vary from actual product appearance.

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For more information on hair dye safety and best practices, visit the FDA's guide on Hair Dyes.

Frequently Asked Questions

Q: How long does the black color from REAROYA Black Hair Dye Shampoo last?

A: Results can vary depending on hair type, texture, and washing frequency. With regular use, most users experience lasting color that remains vibrant between washes. For best longevity, use consistently and avoid over-washing.

Q: Can I use this black hair dye shampoo if I have previously colored my hair?

A: The black shade is compatible with most previously dyed hair. However, lighter shades such as brown, burgundy, and bright purple are intended for natural (undyed) dark hair only. If your hair has been previously dyed dark, it is recommended to use the black shade for best results.

Q: Is this shampoo safe for sensitive scalps?

A: REAROYA Black Hair Dye Shampoo is formulated with plant-based ingredients including ginseng and black sesame oil, and contains no high-concern chemicals. It is designed to be gentle and non-irritating. However, if you have a known sensitivity to hair dye ingredients, we recommend performing a patch test 48 hours before full application.

Q: How much product do I need per application?

A: The 500ml bottle is generous enough to provide multiple applications. The amount needed will vary depending on hair length and thickness. Apply evenly from root to tip for full coverage.