{"product_id":"cosmtek-instant-hair-color-shampoo-chestnut-brown-500ml-15-20-min-color-depositing-nourishing","title":"COSMTEK Instant Hair Color Shampoo Chestnut Brown 500ml — 15–20 min Color-Depositing, Nourishing","description":"\u003cp\u003e\u003cstrong\u003eCOSMTEK Instant Hair Color Shampoo in Chestnut Brown is an easy, at-home color-refresh shampoo that deposits natural-looking brown pigment in 15–20 minutes without bleaching.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis color-depositing shampoo refreshes or changes hair tone quickly while coating the hair’s outer layer rather than penetrating the cortex. Formulated with plant-derived extracts such as Polygonum multiflorum and ginseng, the formula aims to nourish strands as it tints them. The product is designed for temporary results that gradually fade over 3–4 weeks and is intended for tone improvement rather than guaranteed full gray coverage.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use this shampoo to get even, natural chestnut color?\u003c\/h3\u003e\n\u003cp\u003eUse on towel-dried or dry hair for best pigment uptake. Apply like your regular shampoo with gloves on, massage through lengths and roots, then leave in for 15–20 minutes; extend a few minutes for a deeper shade. Rinse thoroughly and follow with conditioner if desired.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply with gloves to avoid staining hands.\u003c\/li\u003e\n  \u003cli\u003eWork product through all hair evenly, especially roots and ends.\u003c\/li\u003e\n  \u003cli\u003eStart with 15 minutes; add time for deeper tone but monitor results closely.\u003c\/li\u003e\n  \u003cli\u003eRinse thoroughly to remove excess dye residue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this shampoo cover gray hair?\u003c\/h3\u003e\n\u003cp\u003eThis Chestnut Brown formula is not formulated for complete gray coverage. Lighter brown shades and chestnut tones may blend or soften some grays but won’t fully conceal heavy or resistant gray growth. For full coverage consider darker shades like black or dark brown.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot recommended when 100% gray coverage is required.\u003c\/li\u003e\n  \u003cli\u003eUse darker shade options if full coverage is your goal.\u003c\/li\u003e\n  \u003cli\u003eChestnut Brown works best for color-refreshing or blending.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the shampoo safe for my hair and scalp?\u003c\/h3\u003e\n\u003cp\u003eThe formula is designed to sit on the hair’s outer layer and includes plant-based extracts intended to support strand softness and strength. It’s milder than many permanent dyes, but skin sensitivity varies — always perform a patch test 48 hours before full application. Avoid use on broken or irritated skin.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains Polygonum multiflorum and ginseng extract for strand nourishment.\u003c\/li\u003e\n  \u003cli\u003eLess aggressive than permanent hair dyes—coats rather than deeply penetrates.\u003c\/li\u003e\n  \u003cli\u003ePerform a patch test before first use to check for irritation.\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\u003eExpect the chestnut tint to last roughly 3–4 weeks depending on hair porosity, washing frequency, and styling. Color will gradually fade with regular shampooing; refresh as needed to maintain tone. Using color-safe shampoos and cool-water rinses can extend vibrancy.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical wear time: about 3–4 weeks.\u003c\/li\u003e\n  \u003cli\u003eWash frequency and hot styling reduce longevity faster.\u003c\/li\u003e\n  \u003cli\u003eReapply when you notice noticeable fading or unevenness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: COSMTEK Instant Hair Color Shampoo in Chestnut Brown suits men and women seeking a quick, low-commitment way to enhance or refresh medium brown tones at home. It’s ideal if you want a gentle, time-saving color touch-up without a salon visit, and if you don’t require full gray coverage. Not recommended for those needing permanent color or complete gray concealment; perform a skin patch test before first full application.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need a patch test before using this color shampoo?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Perform a 48-hour skin patch test before full application to check for sensitivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long should I leave it on for a deeper chestnut color?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Leave it for 15–20 minutes; add a few extra minutes for a deeper tone, watching results closely.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cerva Australia | Professional Beauty Supplies, Skincare \u0026 Cosmetics","offers":[{"title":"Default Title","offer_id":51486357618921,"sku":"B0B426WW5Y","price":66.83,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/7674\/2633\/files\/cosmtek-front-bottle-chestnut-brown.jpg?v=1783217694","url":"https:\/\/cervaaustralia.com\/products\/cosmtek-instant-hair-color-shampoo-chestnut-brown-500ml-15-20-min-color-depositing-nourishing","provider":"Cerva Australia | Professional Beauty Supplies, Skincare \u0026 Cosmetics","version":"1.0","type":"link"}