{"product_id":"manic-panic-classic-sirens-song-semi-permanent-hair-color-neon-blue-green-4oz-vegan-cruelty-free","title":"MANIC PANIC Classic Siren's Song Semi-Permanent Hair Color – Neon Blue-Green, 4oz | Vegan \u0026 Cruelty-Free","description":"\u003ch2\u003eVibrant, long-lasting color for bold looks\u003c\/h2\u003e\n\u003cp\u003eMeet MANIC PANIC Classic Siren's Song, a neon blue-green semi-permanent hair color engineered for people who crave vivid, eye-catching shade. This high-pigment formula delivers bright, enduring color that typically holds for about 4–6 weeks, making it a popular choice for DIY transformations and salon applications alike.\u003c\/p\u003e\n\u003ch3\u003eCustomizable, mixable shade options\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMix and match with other MANIC PANIC colors or our Pastel-izer to craft bespoke hues.\u003c\/li\u003e\n  \u003cli\u003eThe color family leans into a bold neon blue-green, ideal for expressive, fashion-forward looks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest results on pre-lightened hair\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFor maximum vibrancy, apply to pre-lightened hair at level 9–10 blonde. A lightening kit can help achieve the brightest payoff.\u003c\/li\u003e\n  \u003cli\u003eIt can also be used to add depth to darker hair for deeper, fashion-forward tones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConditioning, resealable formula\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe formula includes conditioning ingredients to help hair feel soft, hydrated, and manageable after use.\u003c\/li\u003e\n  \u003cli\u003eThe resealable tub supports multiple applications and convenient storage between color sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCruelty-free, vegan, and安心 to use\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMANIC PANIC colors are vegan and cruelty-free, and the brand also emphasizes ammonia-free, PPD-free, gluten-free formulations.\u003c\/li\u003e\n  \u003cli\u003eThe packaging and product ideology align with ethical beauty choices many shoppers seek today.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTo maintain color and health, use shade-safe shampoos, wash less frequently if you want longer-lasting tone, and follow up with color-safe conditioners. This shade is designed for creative expression and personal experimentation, offering a vivid result that you can tailor to your preferences without promising guaranteed outcomes.\u003c\/p\u003e\n\u003ch3\u003eWhat you can expect in real use\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGreat for DIY color projects, festival looks, or quick salon-level style upgrades.\u003c\/li\u003e\n  \u003cli\u003eStays vibrant through several washes when properly cared for.\u003c\/li\u003e\n\u003c\/ul\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 Siren's Song typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Typically 4–6 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 Siren's Song vegan and cruelty-free?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, MANIC PANIC colors are vegan, cruelty-free, ammonia-free, PPD-free, and gluten-free.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MANIC PANIC","offers":[{"title":"Default Title","offer_id":56231022330188,"sku":"B00LIT5WZA","price":28.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/5912\/6860\/files\/manic-panic-sirens-song-neon-blue-green-bottle.jpg?v=1765709468","url":"https:\/\/belvera.co.uk\/products\/manic-panic-classic-sirens-song-semi-permanent-hair-color-neon-blue-green-4oz-vegan-cruelty-free","provider":"Belvera | British Beauty, Skin Care \u0026 Personal Wellness","version":"1.0","type":"link"}