COSMTEK Black Hair Dye Shampoo 16.9 fl oz — Semi-Permanent 3-in-1 Gray Coverage & Conditioner

COSMTEK Black Hair Dye Shampoo is a semi-permanent, 3-in-1 color-and-care shampoo that tints gray hair black while cleansing and conditioning in one easy application.

This concentrated 16.9 fl oz bottle blends color pigments with conditioning actives to deliver quick gray coverage without a brush, bowl, or professional appointment. Designed for both women and men, the formula aims to deposit black pigment while leaving hair manageable. Follow the included patch test and use the disposable gloves provided for an at-home refresh that saves time and money compared to salon visits.

How do I use this shampoo to dye my hair black at home?

Application is straightforward: wear the included gloves, apply the shampoo evenly, massage to lather and cover the scalp and strands, leave it on for the recommended 15–20 minutes, then rinse thoroughly. No separate developer or tools are required, making it a practical option for home touch-ups.

• Apply to dry or damp hair as instructed on the label.
• Massage for 15–20 minutes to ensure even coverage.
• Rinse until water runs clear and style as usual.

Will this shampoo effectively cover gray hair and how long does it last?

The semi-permanent pigment is formulated to mask gray strands and restore a natural black tone. Results vary by hair porosity and gray density, but most users can expect color to persist through normal washes for approximately 2–3 weeks before gradual fading.

• Covers mixed gray and fully gray strands when applied thoroughly.
• Lasts through multiple washes; color fades gradually rather than abruptly.
• Reapply as needed for persistent gray regrowth or color refresh.

Does the formula condition hair or affect hair texture?

COSMTEK combines color pigments with conditioning compounds to protect and smooth hair fibers during the coloring process. The included conditioning agents aim to maintain manageability and reduce dryness compared with some permanent dyes.

• Contains conditioning actives to soften and detangle after use.
• Helps maintain shine and a natural-looking finish.
• Suitable for straight, wavy, curly, fine, and thick hair types.

Is this shampoo safe for regular use and are there precautions?

Formulated for semi-permanent use, the product is intended for occasional touch-ups rather than daily coloring. Always perform the recommended skin patch test before first use and avoid contact with eyes; follow label instructions and discontinue if irritation occurs.

• Includes gloves for safe application and reduced staining.
• Perform skin allergy test 48 hours before first use.
• Avoid use on irritated or broken scalp skin.

Who is this for: COSMTEK Black Hair Dye Shampoo is suited to men and women seeking a fast, at-home solution to conceal gray hair and refresh a youthful black tone without a salon visit. It fits busy lifestyles, those who prefer simple application without extra tools, and people with various hair textures looking for short-term color that conditions while it colors. If you want temporary yet noticeable gray coverage and easy maintenance between salon appointments, this 3-in-1 shampoo offers a convenient option.