{"product_id":"cosmpro-dark-brown-hair-dye-shampoo-3-in-1-500ml-semi-permanent-gray-coverage-conditioner","title":"cosmpro Dark Brown Hair Dye Shampoo 3-in-1 500ml — Semi-Permanent Gray Coverage \u0026 Conditioner","description":"\u003cstrong\u003ecosmpro Dark Brown Hair Dye Shampoo is a 3-in-1 semi-permanent color shampoo that cleanses, conditions, and instantly masks gray hairs for natural dark brown tones.\u003c\/strong\u003e\n\n\u003cp\u003eThis product combines color, cleansing, and conditioning in one bottle so you can refresh your hair color at home without a brush, bowl, or lengthy salon appointment. Formulated to deposit color onto the hair surface rather than penetrate the cortex, it provides an easy, lower-commitment way to even out grays and refresh dark brown shades that typically last 3–4 weeks depending on wash frequency and hair porosity. A patch test is recommended before first use.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use this shampoo for best gray coverage?\u003c\/h3\u003e\n\u003cp\u003eUse the shampoo on clean, damp hair as you would a regular shampoo, wearing gloves to avoid staining hands. Lather through the lengths and focus on gray-prone areas, then leave it on for 15–20 minutes—20 minutes for full gray coverage—and rinse thoroughly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply to damp hair; do not mix with other products.\u003c\/li\u003e\n  \u003cli\u003eLeave 15 minutes for tone refresh, 20 minutes for denser gray coverage.\u003c\/li\u003e\n  \u003cli\u003eRinse until water runs clear; repeat weekly as needed.\u003c\/li\u003e\n  \u003cli\u003ePerform a skin allergy test 48 hours before first use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this damage my hair or scalp?\u003c\/h3\u003e\n\u003cp\u003eThis formula sits on the hair's outer layer rather than permanently altering the hair shaft, which reduces chemical stress compared with permanent dyes. It also contains conditioning ingredients so hair feels softer after use, but avoid application on broken skin and follow the allergy test guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSemi-permanent action that coats rather than penetrates the cortex.\u003c\/li\u003e\n  \u003cli\u003eIncludes conditioning agents to help smooth and detangle.\u003c\/li\u003e\n  \u003cli\u003eAvoid contact with eyes and wounds; follow safety instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the color last and how often should I reapply?\u003c\/h3\u003e\n\u003cp\u003eExpect visible dark brown color for about 3–4 weeks; longevity varies by hair type and how often you shampoo. For most users, touching up once every 2–4 weeks maintains even coverage and a fresh appearance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eColor persistence: commonly 3–4 weeks.\u003c\/li\u003e\n  \u003cli\u003eReapply every 2–4 weeks based on wash frequency.\u003c\/li\u003e\n  \u003cli\u003eUse milder shampoos and cool water to extend color life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan anyone use this product and who should avoid it?\u003c\/h3\u003e\n\u003cp\u003eThis product is designed for adults seeking temporary to short-term gray coverage and darker brown tones without a salon visit. It is not suitable for people with known sensitivity to hair dye ingredients, those under 16, or anyone with scalp wounds or recent chemical treatments without professional advice.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for adults wanting quick gray coverage and tone refresh.\u003c\/li\u003e\n  \u003cli\u003eNot recommended for individuals with dye allergies or scalp injuries.\u003c\/li\u003e\n  \u003cli\u003ePerform a patch test 48 hours before first full application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: cosmpro Dark Brown Hair Dye Shampoo 3-in-1 is aimed at women and men who want an easy, time-saving way to mask grays and revive natural dark brown color at home. It suits people seeking a lower-commitment alternative to permanent dyes, caregivers or family members wanting a simple color solution for elders, and anyone who prefers a combined shampoo-plus-conditioner color application for quick touch-ups between salon visits.\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 results last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Results typically last 3–4 weeks, depending on hair type 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 necessary?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Perform a skin allergy test 48 hours before first full use to check for sensitivities.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"cosmpro","offers":[{"title":"Default Title","offer_id":53431289774427,"sku":"B0BJDJW868","price":35.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/9860\/9243\/files\/cosmpro-front-bottle-dark-brown-500ml.jpg?v=1782266423","url":"https:\/\/remediesbeauty.co.uk\/products\/cosmpro-dark-brown-hair-dye-shampoo-3-in-1-500ml-semi-permanent-gray-coverage-conditioner","provider":"REMEDIESBEAUTY","version":"1.0","type":"link"}