Manic Panic CLASSIC Formula - Vampire Red Vampire Red is a deep, blood-red hair dye that can give burgundy tones to virgin, unbleached hair. For best results, Manic Panic recommend lightening hair to a light level 8 blonde or lighter. How many 4oz containers of Manic Panic hair color should I buy? Short Hair up to Bob Length: 1 jar/bottle for thin or thick hair. Below the Shoulder up to Waist Length: 2 jars/bottles for thin hair and 2-3 for thick hair. Tailbone or Longer: 3 or more jars for thin or thick hair. Details: Style: Classic Semi-Permanent Hair Dye Color: Vampire Red Color Description - Deep Blood Red Hair Dye Volume: 4oz / 118ml Ingredients: Vegan Friendly, PPD Free! Additional Features: Benefits of Conditioning Hair, Resealable Tub For Longer Use, Comes With Instructions Duration: 4 - 6 weeks