Directions hair colours are my go to for vibrant hair colours. Absolutely love the packaging (no cutting open tubes to get that last little bit out). It's a really nice texture and easy to judge how much you're using. Recommend using on bleached hair.
Pillarbox Red is my favourite bright red temporary colour, it looks great on white or yellow blondes but like most reds it does fade very quickly if you wash your hair often.
Flamingo pink is a vibrant hot pink which I found faded to a nice pastel pink
The violet shade is best on white blonde hair. I tried using this when my hair wasn't the same shade of blonde all over and it didn't come out that great . Some parts looked very brown.
Turquoise is my absolute favourite. It's one of those really unique colours. I usually touch it up as I think it looks messy when its fading. I found it impossible to get out though as it stained my hair.
Will definitely be trying out more shades!