{"product_id":"manic-panic-rockabilly-blue-semi-permanent-hair-color-4oz-vegan-cruelty-free","title":"MANIC PANIC Rockabilly Blue Semi-Permanent Hair Color – 4oz, Vegan \u0026 Cruelty-Free","description":"\u003ch2\u003eVibrant blue that lasts and inspires\u003c\/h2\u003e\n\u003cp\u003eMANIC PANIC Classic Rockabilly Blue is one of our strongest true-blue shades. This bold, neutral blue reads cool on virgin, unbleached hair and can appear even more vibrant on pre-lightened strands. As a semi-permanent color, you can expect noticeable color for about 4–6 weeks with regular washing, making it a versatile option for DIY color explorations or salon touch-ups.\u003c\/p\u003e\n\u003ch3\u003eCustomize your blue\u003c\/h3\u003e\n\u003cp\u003eThe formula is designed to be mixed with other MANIC PANIC shades or our Pastel-izer to craft personalized looks. Build depth with complementary hues or soften the intensity to achieve on-trend pastels. This color pairs well with the broader color lineup for creative, salon-inspired results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMix with other shades for unique, custom hues\u003c\/li\u003e\n  \u003cli\u003ePastel-izer enables softer pastel results\u003c\/li\u003e\n  \u003cli\u003eNo separate developer required for many semi-permanent applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest results and practical usage\u003c\/h3\u003e\n\u003cp\u003eFor maximum vibrancy, pre-lighten hair to level 9–10 blonde. If starting with darker hair, expect a deeper, more nuanced blue by using proper lightening beforehand. Rockabilly Blue is suitable for DIY color projects and professional coloring, offering a bold look with a fade that remains true to tone.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-lighten to level 9–10 for peak vibrancy\u003c\/li\u003e\n  \u003cli\u003eUse a lightening kit like Flash Lightning Bleach for best results\u003c\/li\u003e\n  \u003cli\u003eApply evenly to achieve uniform coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare, conditioning, and packaging\u003c\/h3\u003e\n\u003cp\u003eThe color formula includes conditioning ingredients to help keep hair soft, hydrated, and smooth after application. It comes in a resealable tub for easy storage and reuse. The product is vegan and cruelty-free, aligned with MANIC PANIC’s ongoing commitment to ethics. It is free from ammonia, PPD, gluten, and phthalates and is PETA accredited, offering peace of mind for conscious color enthusiasts.\u003c\/p\u003e\n\u003cp\u003eNote: Results can vary based on hair history, porosity, and washing frequency. This is a cosmetic color option intended for temporary changes rather than a guaranteed transformation.\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 MANIC PANIC Rockabilly Blue vegan and cruelty-free?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It is vegan, cruelty-free, and PETA accredited; free from ammonia, PPD, gluten, and phthalates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does Rockabilly Blue color last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Semi-permanent color that typically lasts 4–6 weeks with regular washing and care.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MANIC PANIC","offers":[{"title":"Default Title","offer_id":56231129481548,"sku":"B0083CNYJG","price":27.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/5912\/6860\/files\/manic-panic-rockabilly-blue-bottle.jpg?v=1765710628","url":"https:\/\/belvera.co.uk\/products\/manic-panic-rockabilly-blue-semi-permanent-hair-color-4oz-vegan-cruelty-free","provider":"Belvera | British Beauty, Skin Care \u0026 Personal Wellness","version":"1.0","type":"link"}