COSMTEK dark brown hair dye shampoo bottle pour for even coverage
COSMTEK dark brown hair dye shampoo application on hair for gray coverage

COSMTEK

COSMTEK Dark Brown Hair Dye Shampoo for Gray Hair – 3-in-1 Semi-Permanent Color, 17.6 fl oz

High-performance beauty made for confident daily results

$33.13

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Why customers choose Oseila Beauty

Refresh gray roots quickly with COSMTEK Dark Brown Hair Dye Shampoo

This lightweight, at-home solution combines color, cleansing, and conditioning in one simple step. The formula aims to deliver a natural dark brown shade while supporting your hair’s feel and manageability after each use. A skin test is recommended before first application to ensure comfort with the herbal ingredients.

What makes it a smart 3-in-1 choice

  • 3-in-1 function: dye, cleanse, and condition in a single care routine.
  • Herbal-inspired actives paired with a conditioning compound designed to care for hair fibers from the inside out.
  • Free from ammonia and parabens, offering a gentler approach compared with traditional dyes.

How to use for best results

  1. Put on the included gloves, then apply evenly through dry or towel-dried hair.
  2. Massage gently for 15–20 minutes to help the color take across strands.
  3. Rinse thoroughly to reveal a natural-looking dark brown shade.

What you may notice

Expect a refreshed look with gray coverage that lasts approximately 2–3 weeks, influenced by washing frequency and hair type. The product aims to leave hair feeling soft, with added shine and easy manageability after use.

Why at-home care fits your routine

No need for a bowl or brush—this shampoo-dye- conditioner hybrid can be used as part of your regular wash day, offering a quick, convenient way to refresh color without a full dye session.

FAQ

Q: How long does the color last?

A: Typically about 2–3 weeks depending on washing and hair type.

Q: How do I use COSMTEK Dark Brown Hair Dye Shampoo?

A: Wear gloves, massage for 15–20 minutes, then rinse; no bowl or brush needed.

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