{"product_id":"cosmtek-black-hair-dye-shampoo-for-gray-hair-16-9-fl-oz-semi-permanent-3-in-1-color-conditioner","title":"COSMTEK Black Hair Dye Shampoo for Gray Hair — 16.9 fl oz Semi-Permanent 3-in-1 Color \u0026 Conditioner","description":"\u003cp\u003e\u003cstrong\u003eCOSMTEK Black Hair Dye Shampoo is a semi-permanent, 3-in-1 shampoo that quickly deposits black color and conditions hair for up to 2–3 weeks without a brush or bowl.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis easy-to-use dye shampoo combines coloring actives with conditioning ingredients so you can restore a darker, fresher-looking tone at home. Formulated for both men and women, the product works on gray, naturally dark, and mixed-toned hair textures. The 16.9 fl oz size is designed for multiple applications, and a pair of disposable gloves is included to make application less messy.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this shampoo color hair without traditional dye tools?\u003c\/h3\u003e\n\n\u003cp\u003eThe formula deposits semi-permanent pigments while you lather, so there’s no need for bowls, brushes, or complex mixing. It’s applied like a regular shampoo: massage into hair and scalp, leave for the recommended time, then rinse thoroughly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReady-to-use liquid, no developer required.\u003c\/li\u003e\n  \u003cli\u003e15–20 minute processing time for visible color payoff.\u003c\/li\u003e\n  \u003cli\u003eIncludes disposable gloves to protect hands.\u003c\/li\u003e\n  \u003cli\u003eRinse-out formula minimizes leftover residue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it effectively cover gray hair and how long does the color last?\u003c\/h3\u003e\n\n\u003cp\u003eCOSMTEK’s active pigments are designed to adhere to hair cuticles and mask mixed or fully gray strands, restoring a uniform black appearance. Expect the color to remain noticeable through several washes — longevity depends on hair porosity and washing frequency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEffective on fine, medium, and thick hair types.\u003c\/li\u003e\n  \u003cli\u003eTypical visibility for about 2–3 weeks before natural regrowth appears.\u003c\/li\u003e\n  \u003cli\u003eColor fades gradually with repeated shampooing.\u003c\/li\u003e\n  \u003cli\u003eNot permanent; touch-ups are simple and repeatable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes the shampoo also care for hair while coloring?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the product blends conditioning agents with coloring molecules to reduce dryness and add shine while depositing pigment. The intent is to protect hair fibers and leave hair feeling softer than many conventional oxidative dyes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConditioning compounds help detangle and smooth the cuticle.\u003c\/li\u003e\n  \u003cli\u003eDesigned to reduce the stripped, brittle feel that some dyes cause.\u003c\/li\u003e\n  \u003cli\u003eLeaves a natural-looking sheen rather than a flat, matte finish.\u003c\/li\u003e\n  \u003cli\u003eSuitable for straight, wavy, and curly textures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use it safely and what should I test beforehand?\u003c\/h3\u003e\n\n\u003cp\u003eFollow the included instructions and always perform a skin sensitivity test 48 hours before first use. Wear the provided gloves, apply to dry or damp hair as directed, time the treatment, then rinse thoroughly and avoid immediate styling with heat on freshly colored hair.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePatch test recommended 48 hours in advance.\u003c\/li\u003e\n  \u003cli\u003eUse gloves and avoid contact with eyes; rinse if contact occurs.\u003c\/li\u003e\n  \u003cli\u003eApply evenly to roots and lengths for consistent coverage.\u003c\/li\u003e\n  \u003cli\u003eRepeat application every few weeks to maintain intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: COSMTEK Black Hair Dye Shampoo is aimed at men and women who want a fast, at-home way to darken hair and reduce the appearance of gray without a salon visit. It suits people with all hair thicknesses and textures who prefer semi-permanent color with conditioning benefits and who are comfortable performing a simple patch test before first use. This product is a practical option for touch-ups, seasonal color refreshes, or anyone seeking a low-effort alternative to permanent coloring systems.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does a single application last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Expect visible black color for about 2–3 weeks, depending on hair porosity and washing frequency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is a patch test required before first use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—perform a skin patch test 48 hours before first use to check for sensitivity.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"COSMTEK","offers":[{"title":"Default Title","offer_id":53435537457499,"sku":"B0B41X3RDF","price":28.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/9860\/9243\/files\/cosmtek-front-bottle.jpg?v=1782315753","url":"https:\/\/remediesbeauty.co.uk\/products\/cosmtek-black-hair-dye-shampoo-for-gray-hair-16-9-fl-oz-semi-permanent-3-in-1-color-conditioner","provider":"REMEDIESBEAUTY","version":"1.0","type":"link"}