More pink dye questions - sorry D:

Yes, diluted Atomic Pink is almost identical to Cupcake pink. It will last longer than other dyes, (which is why i love SFX for pastels) but the longevity will depend on how light you make it it, it won't last indefinitely like straight atomic pink.
Start with a bowl of white conditioner (enough to fully cover your hair) and add a pea sized amount of Atomic pink, stir well. Leave it to sit for at least half an hour then stir again and check the colour, add more pink if necessary. I have found that SFX can go a bit grainy when diluted, but the specks disperse better after it has been sitting, and also that the colour will darken in the tub. So I always make my pastels the day before and give them a really good stir before applying

I'll only need a pea sized blob to get the same shade as SFX cupcake?
My goodness that's awesome 😀

Atomic pink is really strongly pigmented, but i am guessing at the amounts. It will only be a small amount, so start with a pea size and add more as you need it. When i make up a batch of dye i need at least 300ml of conditioner because i have a lot of hair, so you will need considerably less if your hair is the length in your avatar pic.

It is, but I'm dying some extensions also.
You're a life saver, I shall have pink hair <3

yay