Vegan and cruelty-free formula ensures ethical hair coloring
Conditioning cream base hydrates and strengthens hair during application
Salon-grade pigments deliver ultra-vibrant, true blue color
Non-toxic, ammonia-free, peroxide-free, and PPD-free for safe use
Infused with natural sunflower extract and essential oils for UV protection and fragrance
Summarized by Shop
Classic, cobalt blue
Semi-Perm
16-24+ washes
Most vivid on level 7+ hair
Our clean & vegan semi-permanent hair dye combines salon-grade pigments with a nontoxic formula that deposits ultra vibrant color. Our semi-permanent hair dyes do not damage the hair, in fact they’re super conditioning with a high-quality cream base that acts l
Color
Blue Ruin (True Blue)
Formulation
Semi-permanent cream
Volume
5 fl oz (150 ml)
Wash Duration
15–24 washes
Application Type
Rinse-out
Free from
Ammonia, peroxide, PPD, formaldehyde
Summarized by Shop
4.9
70 ratings
5
4
3
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1
Amazing hair dye!!!
Blue Ruin is so good!! It stayed in my hair for so long. I was able to go to a waterpark and it still be pretty pigmented. Get this!!
J
Josie · August 30, 2026
Blue Ruin, only blue that actually doesn't ruin
Absolutely wonderful blue, ive gotten sooooo many compliments on it, it used to be my go to before I found Dream Big, on the GDY website! It's such a vibrant blue, the only hairdye I recommend when someone asks for a good blue!
![Good Dye Young Dream Big [Navy] - Front View](https://cdn.shopify.com/s/files/1/0836/9167/files/good-dye-young-dream-big-hair-colour-8.jpg?v=1739819223&width=256)
