COSMTEK Black Hair Dye Shampoo for Gray Coverage — Semi‑Permanent Black, Argan & Olive Oil Conditioning

COSMTEK Black Hair Dye Shampoo is a color-depositing shampoo that gently darkens gray or light hair while conditioning with argan, olive oils, and turmeric.

Designed for men and women who want a fast, low-commitment way to restore a natural black tone, this semi-permanent color shampoo deposits pigment with every wash and helps tame frizz. The updated formula avoids sulfates, ammonia, and preservatives and shows the full ingredient list so you know what you’re applying. It works on hair and facial hair, rinses out, and maintains color for several weeks with regular use.

How do I use this shampoo for the best gray coverage?

Apply to wet hair like a regular shampoo for consistent color distribution; on dry hair it still deposits pigment but wet application typically gives more even results. Work the lather through roots to tips, leave for the recommended time, then rinse thoroughly.

• Use quantity according to hair volume—more for thicker hair.
• Leave 5–10 minutes for standard coverage; add 1–2 extra minutes for very thick hair.
• Rinse until water runs clear to avoid uneven color build-up.

What benefits does the formula provide besides coloring?

Beyond depositing black pigment, the formula includes argan oil, olive oil and turmeric to help smooth hair, reduce frizz, and add a subtle shine. Because it’s semi-permanent and free from ammonia and sulfates, it’s less aggressive than many permanent dyes.

• Smoothing agents reduce flyaways and improve manageability.
• Non-ammonia blend minimizes harsh chemical exposure.
• Full ingredient table available for transparency and safer choices.

How long will the color last and how often should I reapply?

One application typically keeps hair visibly darker for about 4–5 weeks depending on hair porosity and washing frequency. For those wanting to maintain a steady black shade, reapplying approximately every 15 days helps sustain intensity and shine.

• Expect gradual fade with regular shampooing; color is semi-permanent.
• Reapply every 2 weeks for consistent depth and gloss.
• Use color-safe or gentle shampoos to prolong results.

Is there any safety guidance I should follow before using it?

Perform an allergy patch test behind the ear 24 hours before full use. If no irritation appears, proceed; discontinue if you experience adverse reactions. The product is formulated to reduce harshness but skin sensitivity varies.

• Patch test 24 hours prior to full application.
• Avoid contact with eyes; rinse thoroughly if contact occurs.
• Store in a cool, dry place and keep out of children’s reach.

Who is this for: COSMTEK Black Hair Dye Shampoo suits anyone seeking an easy, nonpermanent way to darken gray, light-brown, or white hair without a full-color salon visit. It’s ideal for busy people who want quick coverage and improved hair manageability, and for those preferring a formula without ammonia or sulfates. If you want to darken a beard, refresh roots between color treatments, or try a temporary change with added conditioning, this product is built for convenient at-home use.

Ingredients

Argan Oil,Olive Oil,Turmeric