COSMTEK Black Color-Depositing Shampoo 400ml — Semi-Permanent 3-in-1 Grey Coverage & Tone Refresh

COSMTEK Black Hair Dye Shampoo is a 3-in-1 semi-permanent colored shampoo that deposits black pigment, evens out gray, and refreshes tone in one easy application.

This color-depositing shampoo combines gentle cleansing with pigment delivery so you can refresh or change your hair color at home without peroxide or permanent dyes. The upgraded formula includes a full ingredients table for transparency and is designed to work on a range of natural shades—from white and gray to light brown—making it a practical option for both women and men seeking temporary black coverage and tone maintenance.

How do I use this shampoo to get even black coverage?

Use COSMTEK Black Hair Dye Shampoo on dry hair like a standard shampoo, leave the product in for 15–20 minutes to allow the pigment to deposit, then rinse thoroughly. For the most consistent results, apply evenly from roots to ends and use gloves or a tint brush to target stubborn gray areas.

• Apply to dry hair for stronger color payoff.
• Leave 15–20 minutes; adjust time for intensity.
• Rinse well, repeat weekly for upkeep if needed.
• Patch-test prior to full application to check sensitivity.

Will this shampoo work on different hair colors and textures?

The semi-permanent formula is formulated to deposit black pigment on a variety of base shades and hair types, though final results vary with original color, porosity, and previous treatments. Darker natural bases will show subtler change while lighter or gray hair displays more obvious black coverage.

• White and gray hair tend to accept pigment more visibly.
• Light brown hair will darken toward black tone with repeated use.
• Porous or chemically-treated hair may take color faster.
• Results are temporary and gradually fade with washing.

Is the product safe and what precautions should I take?

COSMTEK provides an ingredient table and recommends an allergy (patch) test before first use to reduce the risk of irritation. Avoid contact with eyes, mouth, nose and any broken skin; if contact occurs, rinse immediately and discontinue use if irritation develops.

• Perform a patch test 48 hours before use.
• Avoid applying to open wounds or irritated scalp areas.
• Keep out of eyes; rinse thoroughly if accidental contact occurs.
• Store in a cool, dry place away from direct sunlight.

How long does the color last and how do I maintain it?

The semi-permanent dye fades gradually over multiple washes; frequency of shampooing, water temperature, and hair condition affect longevity. To maintain depth, reapply the color-depositing shampoo every 1–2 weeks or as needed, and use color-safe conditioners to prolong pigment retention.

• Color fades with repeated washing and heat styling.
• Cold or lukewarm water helps preserve pigment longer.
• Use sulfate-free, color-safe products for upkeep.
• Touch up roots or gray spots selectively between full applications.

Who is this for: COSMTEK Black Hair Dye Shampoo is intended for adult men and women who want an easy, non-permanent way to darken hair, cover gray strands, or refresh black tones without salon chemicals. It's suited to those seeking a low-commitment color option, users who prefer to maintain color at home, and anyone looking for a multipurpose product that cleanses and deposits color at the same time.