well i have very dark brown hair and i put some rock n roll red on it for a little over 2 hours without bleaching. it ended up dark reddish brown, but the tint was noticable.
& yeah i've heard that vampire red, i was going to try it on my hair but they didn't have it so i took a chance with rock n roll red.
do you have the link to the post?
2b & 2c
high porosity
high density

Adagir Argan Oil Shampoo & Conditioner
Occasionally Shimmer Lights Shampoo and Redken Blonde Glam Color Enhancer
KeraPro Restorative Treatment, One n Only Argan Oil Restorative Treatment, or One n Only Brazilian Tech Keratin Deep Penetrating Treatment
Global Keratin Serum, Ojon Damage Reverse Serum, and Organix Brazilian Keratin Therapy Flat Iron Spray
I straighten, blow out, bleach, and dye my hair.