{"product_id":"cosmpro-dark-brown-hair-dye-shampoo-3-in-1-semi-permanent-500ml-gray-coverage-conditioning","title":"cosmpro Dark Brown Hair Dye Shampoo 3-in-1 Semi-Permanent 500ML — Gray Coverage \u0026 Conditioning","description":"\u003cp\u003e\u003cstrong\u003ecosmpro Dark Brown Hair Dye Shampoo is a 3-in-1 semi-permanent color treatment that cleanses, conditions and instantly darkens gray hair in about 15–20 minutes.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis all-in-one 500ML shampoo lets you refresh your natural dark brown tone at home without bowls, brushes or a salon appointment. Formulated to coat the hair shaft rather than penetrate deeply, it combines shampooing, coloring and conditioning steps so you can reduce visible grays quickly and maintain softer hair. For best results, perform a skin allergy patch test before first use and follow the listed wait times for partial or full gray coverage.\u003c\/p\u003e\n\n\u003ch3\u003eHow easy is it to use cosmpro 3-in-1 Hair Dye Shampoo at home?\u003c\/h3\u003e\n\u003cp\u003eVery straightforward — use like a regular shampoo while wearing gloves. Apply to wet hair, lather and leave on as directed: 15 minutes for a darker tint or up to 20 minutes for fuller gray coverage, then rinse thoroughly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply on wet hair and massage into scalp and lengths.\u003c\/li\u003e\n  \u003cli\u003eLeave 15 minutes for subtle tone, 20 minutes for full gray coverage.\u003c\/li\u003e\n  \u003cli\u003eNo mixing, brushes or bowls required — saves time and cleanup.\u003c\/li\u003e\n  \u003cli\u003eRinse until water runs clear to lock in color and shine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this shampoo damage my hair or scalp?\u003c\/h3\u003e\n\u003cp\u003eThe formula is designed to sit on the hair surface to minimize deep chemical penetration; it also contains conditioning agents to reduce dryness. Still, a skin patch test is recommended prior to full application, and avoid contact with eyes or broken skin.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSurface-level coloration reduces aggressive chemical exposure.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in conditioning ingredients help improve smoothness after use.\u003c\/li\u003e\n  \u003cli\u003eNot intended for injured scalp areas or mucous membranes.\u003c\/li\u003e\n  \u003cli\u003ePerform allergy test 48 hours before the first application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does cosmpro dark brown color last and how to maintain it?\u003c\/h3\u003e\n\u003cp\u003eExpect visible dark brown color for roughly 3–4 weeks depending on hair porosity and washing frequency. To extend the result, use sulfate-free shampoos, rinse with cool water and avoid daily high-heat styling.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical longevity: about 3–4 weeks per application.\u003c\/li\u003e\n  \u003cli\u003eUse color-safe or sulfate-free products to slow fading.\u003c\/li\u003e\n  \u003cli\u003eLimit hot-water rinses and frequent clarifying shampoos.\u003c\/li\u003e\n  \u003cli\u003eTop up with the shampoo when regrowth or fading becomes noticeable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat results can I expect on different hair types and amounts of gray?\u003c\/h3\u003e\n\u003cp\u003eResults vary: lighter gray and some natural brown hair will adopt a deeper brown tone quickly, while very resistant white or porous hair may require repeated applications for full uniform coverage. For heavy or long-standing gray, allow the full 20-minute processing time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShort, fine or slightly gray hair: even, fast coverage.\u003c\/li\u003e\n  \u003cli\u003eCoarse or very white hair: may need repeat applications.\u003c\/li\u003e\n  \u003cli\u003eColored or chemically treated hair: test a small strand first.\u003c\/li\u003e\n  \u003cli\u003eNot permanent — gradual fading with washes is normal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for: cosmpro Dark Brown Hair Dye Shampoo is ideal for anyone seeking a fast, low-fuss way to reduce visible grays while conditioning hair — particularly busy adults, caregivers, and those who prefer at-home color touch-ups to salon visits. It suits users wanting semi-permanent results without mixing dyes, and anyone who values time and simplicity. Avoid using on children under recommended ages and always perform a patch test for safety.\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 do I leave cosmpro hair dye shampoo on for full coverage?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Leave on 15 minutes for tinting and up to 20 minutes for full gray coverage; then rinse thoroughly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is a patch test necessary before using this product?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Perform a skin allergy test 48 hours before first use to check for sensitivity.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"cosmpro","offers":[{"title":"Default Title","offer_id":49628147056778,"sku":"B0BJDJW868","price":86.82,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/4825\/6394\/files\/cosmpro-front-packaging-dark-brown-500ml.jpg?v=1782922519","url":"https:\/\/auviraskincare.com\/products\/cosmpro-dark-brown-hair-dye-shampoo-3-in-1-semi-permanent-500ml-gray-coverage-conditioning","provider":"Auvira Beauty","version":"1.0","type":"link"}