Manic Panic MANIC PANIC Classic Shocking Blue Semi Permanent Hair Color - Dark Cobalt Blue Hair Dye for Women & Men That Lasts 4-6 Weeks - Vegan, Ammonia & Cruelty-Free - Create & Mix Custom Shades (4oz)

Shocking Blue Hair Dye; A Dark Blue Dye With Purple Undertones; Can Add Dark Blue Highlights To Virgin Hair; We Recommend Lightening Hair To Very Light Level Nine Blonde Or Lighter; Tone Hair That Has Yellow Tones Before Use To Avoid Undesired Tones | Mixable Colors And Tones; All MANIC PANIC Hair Colors Are Safe To Mix To Create Custom Shades Making The Possibilities Of Shades Endless; Combine Any Formula With The Pastelizer To Create Soft On Trend Pastel Hues; Ready To Use; No Developer Required | Semi Permanent Hair Dye; This Semi Permanent Hair Dye Formula Gradually Fades In Four To Six Weeks Because It Does Not Penetrate The Cortex Of Your Hair But Simply Rests On Top Of The Hair Shaft | Cruelty Free And Vegan Formula; This Color Cream Hair Dye Features Vegan Ingredients Tested On Celebrities Not Animals; Made In The USA; Hair Color Is PPD And Ammonia Free; Paraben Free; Gluten Free; Resorcinol Free; Phthalate Free; PETA Accredited | For Best Results; Vibrant Color Results Are Best Achieved By Applying To Hair That Has Been Pre Lightened With MANIC PANIC Flash Lightning Bleach Kits; Bleaching Thoroughly To A Level Nine Or Ten Before Dyeing Is Recommended For The Best Results