Manic Panic High Voltage Classic Hair Colour Electric Amethyst 118ml

• Manic Panic High Voltage Classic Hair Colour in Electric Amethyst, 118ml
• World-famous semi-permanent vivid hair dye
• UV-reactive vivid purple Electric Amethyst shade
• Vegan-friendly and PPD-free formulation

Manic Panic High Voltage Classic Hair Colour in Electric Amethyst is a 118ml professional semi-permanent hair dye from Manic Panic's Classic High Voltage range — extends the UV-reactive "Electric" cluster alongside Electric Lizard (neon green), Electric Banana (bright yellow), Electric Tiger Lily (bright orange), and Infra Red (red-orange UV) covered previously. Real distinct positioning: Electric Amethyst gives vivid purple direction with UV-reactive property (Amethyst references the purple crystal/gemstone) — real customer choice within Manic Panic's substantial purple-family range now spanning multiple depth and property variations (Deep Purple Dream deep, Lie Locks vivid violet, Mystic Heather soft lilac, Electric Amethyst UV-reactive vivid purple). Real critical formulation positioning: vegan-friendly AND PPD-free (reduces one common allergen risk though not to zero). Real sustained brand heritage since the 1970s punk era.

Key features

• Professional semi-permanent hair colour, 118ml
• Electric Amethyst vivid purple shade
• UV-reactive under blacklight
• Amethyst crystal/gemstone cultural naming reference
• Classic High Voltage heritage formulation
• Vegan-friendly formulation
• PPD-free (reduces one common allergen risk)
• Semi-permanent — lasts up to 6 weeks per manufacturer
• World-famous Manic Panic brand heritage since 1970s

How to use

Pre-lightened hair gives best colour result — vivid hair colours like Electric Amethyst require pre-lightened (bleached) hair to show accurately on darker natural hair, and the UV-reactive effect specifically requires pale-lightened base for maximum blacklight glow effect. Complete 48-hour skin patch test before service to check for allergic reaction (PPD-free formulation reduces one common allergen risk but does not eliminate all allergic reaction risk). Apply Classic High Voltage colour directly to clean dry hair from the bottle. Distribute the colour evenly through the hair using a tint brush, ensuring full saturation of each section. Leave to develop per manufacturer instructions (typically 30-45 minutes for full colour intensity). Rinse thoroughly with cool water until water runs clear. Avoid shampooing for 24-48 hours after application to allow colour to set. For maintenance, use colour-safe shampoo and conditioner, wash in cool water, and refresh colour every 4-6 weeks per manufacturer.

Who it's for

This hair colour is for professional colourists and confident home users wanting UV-reactive vivid purple in the heritage Manic Panic Classic formulation — particularly clients whose personal styling engages with festival, club/rave, or blacklight-reactive contexts where the UV-reactive effect matters. We've spent years helping clients in Codsall look and feel their best, and as a working hair salon, we know Manic Panic's purple-family range gives real customer choice across depth variations plus the additional dimension of UV-reactive property — Electric Amethyst specifically appeals to clients wanting vivid purple direction with additional under-UV visual effect for blacklight-context styling (festivals, club/rave events, dramatic under-blacklight photography).

Explore more

Discover more in our hair colour, Manic Panic and shop by brand ranges.

Free UK delivery on all orders.

For professional and adult use. Complete 48-hour skin patch test before every service to check for allergic reaction — PPD-free formulation reduces one common allergen risk but does not eliminate all allergic reaction risk. Hair colour products contain multiple ingredients that can cause allergic sensitisation, particularly in individuals with previous cosmetic allergies. Do not use if you have previously experienced allergic reaction to hair colour, henna, or black henna. Vivid colour results require pre-lightened hair — on darker unlightened natural hair, colour result will be significantly less vivid than shown, and pre-lightening service should be performed by qualified colourist to minimise natural hair damage. Colour can stain skin, clothing, towels, and bathroom surfaces during and after application — protect all surfaces during application and wear appropriate PPE (gloves, old clothing). Avoid contact with eyes; if contact occurs, rinse thoroughly with water and seek medical attention if irritation persists. Do not apply to eyebrows or eyelashes. Use in a well-ventilated area. Keep out of reach of children. Not for use on damaged, scalp-condition affected, or broken hair without appropriate professional assessment first. Discontinue use and consult a GP if any allergic reaction develops during or after use.