i don't know what the ingredients are, so i can't say. does the conditioner have cones in it?
you don't necessarily need someone with the same hair properties to transition with, just someone who has about the same length of healthy hair, or the same goals as you. as support.
i never relaxed my hair but i did color it, very dark brown, black. so i decided 4 years ago to stop coloring my hair, and did the transition -- white roots, black hair, etc....i used headbands all the time!! eventually it grows. i did not do a very short cut, but i finally cut it, shorter than i normally wear it, but acceptable to me. it's a personal decision, one you decide as you go along. remember, you already have a good amount of healthy hair now.
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washing/cowashing, conditioning, protein tx: curl junkie products
leave in:cj conditioners and treatments as leave in
sealants - spiral solutions emollience butter, jane carter nourish & shine