ARCTIC FOX Poseidon Semi-Permanent Hair Dye 8 fl oz – Vegan Blue, Conditioning Ammonia-Free Formula

ARCTIC FOX Poseidon is a semi-permanent, vegan blue hair dye that deposits a vivid medium-blue shade while conditioning hair without ammonia or peroxide.

Poseidon by ARCTIC FOX is formulated for people who want a bold, cooler-toned blue that performs best on pre-lightened hair. The 8 fl oz conditioning formula uses plant-based ingredients and omits peroxide, ammonia, ethyl alcohol, and PPD, so it refreshes color while minimizing damage. It’s easy to mix for customized tones and is designed for repeated use when you want to keep color bright and hair manageable.

How pigmented is Poseidon blue and what base color do I need?

Poseidon gives a medium-to-vivid blue when applied to a pale, cool-toned blonde. On darker or yellowed bases the result will be muted or teal; lift to a level 8 or lighter for the most intense true blue.

• Best on pre-lightened, cool-toned blonde (level 8 or lighter).
• On darker hair expect subtle blue or teal undertones.
• Use purple toners to remove brass before dyeing for truer blue.

Can I customize Poseidon to get pastel or cooler shades?

Yes — Poseidon mixes cleanly with other Arctic Fox shades and diluters to create pastels or tone adjustments. Mixing expands your palette without introducing harsh chemicals.

• Mix with Arctic Mist for soft, baby-blue pastels.
• Add small amounts of Purple Rain to neutralize warm brassiness.
• Blend with white-based diluters to lighten intensity while retaining cool undertones.

Will this dye damage my hair and how does it condition?

Poseidon is a semi-permanent dye that conditions as it deposits color; it doesn’t use peroxide or ammonia, so it avoids the structural lift that permanent dyes use. The formula includes plant-based conditioning agents that help keep strands softer after application.

• No peroxide or ammonia reduces chemical lift and breakage risk compared with permanent dyes.
• Vegan ingredients and added conditioners help maintain softness and shine.
• Designed for repeat use to refresh color without aggressive processing.

How long will the blue last and how should I maintain it?

Semi-permanent pigments fade gradually with washing and sun exposure; longevity depends on hair porosity and care routine. Using sulfate-free shampoos, cool water rinses, and color-safe products prolongs vibrancy and reduces frequent touch-ups.

• Expect fading over several weeks; refresh as desired.
• Wash with cool water and sulfate-free shampoos to extend color.
• Limit heat styling and use UV protection for slower fading.

Who is this for: ARCTIC FOX Poseidon is ideal for creative color users who already lighten their hair or are willing to pre-lighten to achieve a bright blue. It suits anyone seeking a vegan, cruelty-free option that conditions while adding bold color, including colorists experimenting with mixes and at-home stylists who want vivid, customizable blues without harsh chemicals.

Ingredients

Aqua/Eau Cetyl Alcohol Glycerine Stearalkonium Chloride Glycerol Stearate PEG-100 Stearate Propylene Glycol Guar Hydroxypropyltrimonium Chloride Quaternium-52 Cetearyl Alcohol Ceteareth-20 Hydrolyzed Soy Protein Fragrance Citric Acid Tetrasodium EDTA Methylchloroisothiazolinone Methylisothiazolinone Basic Blue 7 Basic Yellow 87