Make waves with Poseidon, a deep, oceanic blue hair dye with cool undertones inspired by the sea’s depths. This bold, true blue shade delivers intense color with slight teal undertones that add dimension and richness.
Why You’ll Love It:
DIY Formula – Simple, no-mess application Hydrating & Deep Conditioning – Keeps hair smooth and sof
4.5
783 ratings
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It turned out so good
This color shows up as a nice light blue, but it isn't too pigmented. It will fade a bit turquoise and into green, but it is a popping color! The product works great, but fades fast!
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Isabella · September 5, 2026
Poseidon Hair Color
I absolutely love the color, as did several of my friends and my boyfriend
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Tina~Marie · September 13, 2026
Would order agaib!
As someone with super dark hair who has wanted blue hair for years but dyes didn’t stick, I was surprised when this took and has held well! Definitely ordering again in the future!