COSMTEK Black Dye Shampoo – 3-in-1 Color for Gray Coverage, Beard & Treated Hair, 500ml, Ammonia-Free

Refresh dark tones at home with a single wash

COSMTEK Black Dye Shampoo is a color-depositing shampoo designed to revive darker hues across hair and facial hair. The formula is upgraded to be free from preservatives, sulfates, and ammonia, offering a gentler option for frequent use. The 500ml bottle provides a practical, long-lasting supply that you can reach for during your regular wash routine. A full formula table is available for you to review ingredients before use, helping you color with confidence.

Why users notice smoother, more controlled color

Infused with Argan Oil, Olive Oil, and Turmeric, this color shampoo aims to smooth strands and reduce frizz after coloring. The combination supports a softer, more polished look as part of your wash routine, making it a convenient choice for busy days when you want to feel put-together without extra steps.

Who can benefit and how it works

This semi-permanent, deposit-only color solution is versatile enough for white, gray, and light-brown hair. It can darken hair tones and can also be used to deepen beard color, providing a cohesive look across scalp and facial hair. Intended for home use, it’s easy to incorporate into your weekly routine without special tools.

Easy, predictable results you can repeat

To use, apply the shampoo to wet hair, leave it on for 5–10 minutes, then rinse thoroughly. With a single application, color depth can be maintained for several weeks. For a consistent shade, many users refresh color every two weeks. This approach supports a steady, gradual enhancement rather than dramatic, one-time change.

What this means for your hair care routine

• Gentle, ammonia-free formula designed for regular use
• Color-depositing action that works across hair and beard
• Frizz control and shine from natural oils and turmeric
• Simple, rinse-and-wash application that fits into a busy schedule

• Keep color depth with a 15-day refresh cadence for best results
• Preferred for those seeking a natural herbal touch without harsh additives
• Ideal for maintaining a cohesive look on treated hair and facial hair

Note: This product emphasizes a color-depositing effect rather than a permanent dye. Results vary with washing frequency and hair type, so consider a routine that aligns with your hair care goals.