COSMTEK Chestnut Brown Instant Hair Color Shampoo 500ml — 3‑in‑1 Coloring, Cleanses & Conditions in 15–20 Minutes

COSMTEK Instant Hair Color Shampoo is a 3-in-1, herbal-based chestnut brown shampoo that colors, cleanses, and conditions hair in 15–20 minutes without a bowl or brush.

This shampoo offers an at-home, time-saving alternative to salon color by depositing chestnut brown pigment onto the hair surface while also delivering plant-derived extracts for smoother, shinier hair. The formula is designed to coat the outer layer of the hair shaft, so color typically lasts about 3–4 weeks and washes gradually. It’s simple to use: apply like a regular shampoo, leave on for the recommended time, then rinse—no separate developer or complicated mixing required.

How quickly will I see color, and how long does it last?

You’ll notice visible chestnut brown color after one application in about 15–20 minutes; leaving the product on a few extra minutes can deepen the shade. The color bonds to the hair’s exterior and fades progressively, typically lasting 3–4 weeks depending on hair porosity and washing routine.

• First results in a single 15–20 minute application.
• Deeper tone if left on slightly longer (follow skin-safety guidance).
• Average fade time: about 3–4 weeks with regular washing.
• Frequency: reapply when tone starts to soften or fade.

Will this cover gray hair completely?

This chestnut brown shampoo is formulated to deposit color on the hair surface and is not guaranteed to fully cover heavy or long-standing gray hair. For full gray coverage, darker shades such as black or dark brown are recommended instead.

• Not designed for 100% coverage of gray strands.
• Works best to refresh natural color or blend mild graying.
• Choose darker shades for stronger gray coverage when needed.
• Contact customer support within 12 hours for immediate replacement if you received the wrong shade.

Is the formula gentle, and what botanical ingredients are included?

The shampoo uses a mild, plant-based formula that aims to cleanse while caring for hair texture. Key botanical extracts—such as Polygonum multiflorum and ginseng—are included to help strengthen strands and support a smoother finish without the harshness of typical chemical dyes.

• Polygonum multiflorum: supports stronger-feeling hair strands.
• Ginseng extract: helps condition and nourish hair silkiness.
• Surface-level coloring preserves internal hair structure.
• Recommended skin patch test before first use to check sensitivity.

How easy is it to use at home and will it stain skin or fabric?

Application is straightforward—no mixing, bowl, or brush required. You use it like your regular shampoo while wearing gloves, leave it on for the suggested time, then rinse. The formula is developed to minimize skin staining when instructions are followed, but a brief patch test is still advised.

• Apply with gloves; use as a regular shampoo—no tools needed.
• Typical processing time: 15–20 minutes; adjust slightly for depth.
• Formulated to avoid noticeable skin staining if applied correctly.
• Rinse thoroughly and avoid contact with clothing until fully dry.

Who is this for: COSMTEK Instant Hair Color Shampoo in Chestnut Brown is ideal for men and women seeking a fast, at-home color refresh that also conditions hair. It suits anyone who wants a temporary-to-semi-permanent warm brown shade without salon time, users who prefer plant-derived ingredients, and people looking to boost shine and manageability between professional color services. Not recommended if you require complete gray concealment—choose darker tones in that case.