{"product_id":"cosmtek-black-hair-dye-shampoo-500ml-ammonia-free-3-in-1-color-conditions-covers-gray-for-hair-and-beard","title":"COSMTEK Black Hair Dye Shampoo — 500ml Ammonia-Free 3‑in‑1 Color, Conditions \u0026 Covers Gray for Hair and Beard","description":"\u003cp\u003e\u003cstrong\u003eCOSMTEK Black Hair Dye Shampoo is an ammonia-free, 3-in-1 color-depositing shampoo that darkens gray hair and beards while cleansing and conditioning for up to 30 days per application.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis product combines a gentle cleansing base with color-depositing pigments and conditioning botanicals so you can refresh or restore a natural black shade without a separate dyeing step. The formula is free of sulfates, preservatives, and ammonia and includes argan oil, olive oil and turmeric to help smooth hair and reduce frizz. Designed for convenient at-home use, the shampoo works on wet or dry hair (wet is recommended) and is suitable for many hair textures and shades, from light brown to white or gray.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I see color results with COSMTEK Black Hair Dye Shampoo?\u003c\/h3\u003e\n\u003cp\u003eMost users notice visible darkening after a single use when applied to wet hair and left on for the recommended time. Results depend on your starting hair color, porosity and how long you leave the product on; thicker or coarser hair may need an extra minute or two for fuller coverage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply to wet hair for the most even color deposit.\u003c\/li\u003e\n  \u003cli\u003eLeave on 5–10 minutes; very thick hair can stay 1–2 minutes longer.\u003c\/li\u003e\n  \u003cli\u003eRinse thoroughly to avoid residue and uneven tone.\u003c\/li\u003e\n  \u003cli\u003eExpect the effect to last roughly 4–5 weeks; repeat every 15 days to maintain intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this shampoo on my beard and sensitive facial skin?\u003c\/h3\u003e\n\u003cp\u003eThe shampoo is formulated for both scalp hair and beard use, but a patch test is recommended for facial skin. Apply a small amount behind the ear and wait 24 hours; if no irritation appears, you can use it on the beard following the same timing guidance as hair.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePatch test behind the ear 24 hours before first use.\u003c\/li\u003e\n  \u003cli\u003eApply like normal shampoo, massage into beard, leave 5–10 minutes, then rinse.\u003c\/li\u003e\n  \u003cli\u003eAvoid contact with eyes; rinse immediately if contact occurs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat conditioning benefits does this color shampoo offer?\u003c\/h3\u003e\n\u003cp\u003eThis formula includes argan oil, olive oil and turmeric to help smooth the hair shaft and reduce frizz while depositing pigment. Because it combines cleansing, color and conditioning steps, it can simplify your routine and leave hair feeling softer than some traditional dyes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eArgan oil helps add shine and manageability.\u003c\/li\u003e\n  \u003cli\u003eOlive oil delivers moisture and softness to dry strands.\u003c\/li\u003e\n  \u003cli\u003eTurmeric offers antioxidant-rich botanical support for scalp comfort.\u003c\/li\u003e\n  \u003cli\u003eFree of sulfates and ammonia for gentler handling of color-treated hair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will the color last and how often should I reapply?\u003c\/h3\u003e\n\u003cp\u003eColor durability varies by hair type and washing frequency; typically one application lasts about 4–5 weeks. To keep the black tone vivid, apply the color shampoo every 10–15 days or as needed based on fading and new gray growth.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eResults generally hold for 4–5 weeks with normal washing patterns.\u003c\/li\u003e\n  \u003cli\u003eReapply every 10–15 days for continuous intensity.\u003c\/li\u003e\n  \u003cli\u003eUse less often if you prefer a subtler, gradual darkening effect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for? COSMTEK Black Hair Dye Shampoo suits anyone wanting a low-fuss method to cover gray or refresh a natural black shade without permanent dyes. It works for men and women, scalp and beard, and for people seeking a gentler, ammonia-free alternative that also conditions as it colors. Avoid use if you have known sensitivity to any ingredient; perform the recommended patch test before first full use. Follow the usage notes for best results: apply to wet hair, adjust the amount for hair volume, leave on 5–10 minutes (slightly longer for thick hair), and rinse thoroughly.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eGinseng\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: Is COSMTEK Black Hair Dye Shampoo safe for color-treated hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it’s ammonia- and sulfate-free and formulated to be gentle on color-treated hair while adding conditioning oils.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long should I leave the shampoo on for best gray coverage?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Leave the shampoo on 5–10 minutes; very thick hair can stay 1–2 minutes longer for better coverage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"COSMTEK","offers":[{"title":"Default Title","offer_id":58361790005635,"sku":"B0BC1SPT9V","price":29.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/2696\/0515\/files\/cosmtek-front-packaging-500ml.jpg?v=1782807745","url":"https:\/\/origin-beauty.com\/products\/cosmtek-black-hair-dye-shampoo-500ml-ammonia-free-3-in-1-color-conditions-covers-gray-for-hair-and-beard","provider":"Origin Beauty","version":"1.0","type":"link"}