I highly doubt that is the cause of your dryness. A lot of us stay under for a whole hour and it helps that much more.
Can you share your entire regimen and products so we can see if there might be another cause?
My regimen is constantly changing due to my cry for a real moisture rich regimen that doesn't contain anything with protein.
But the products I am using currently are:
Giovanni Deep Moisture shampoo to wash once a week (I do aerobics on Tues/Thurs and I have to wash my scalp because I get build up)
I have used Giovanni Hydrating Clarifying shampoo too in the past month.
I just RECENTLY started to cowash. I tried Hello Hrydration, Pantene Relaxed and natural conditioner mask, v05 passion fruit smoothie
I have DCed with AOHSR (but it didn't feel very soft). Once a week.
I'm upping my DC to twice a week. I don't know what else to use to soften, I used that one because it is supposed to have 0 protein.
I am sitting here as we speak trying my own home made DC with unrefined Shea, Coconut, v05 passion fruit smoothie and some other essential oils on slightly damp hair.
I did a porosity test and my hair is not too porous. The strands I tried (3 of them just to make sure) stayed a float.
I even made a mix with glycerin in it last night, my hair was soft when wet... but then it felt dry (not TOOO dry, but NOT soft) after it dried. I read an article on here saying glycerine can actually take moisture FROM the hair if the air is not humid enough.. so I dumped my little mix out.
I'm so desperate.
My hair grows fast as a weed, BUT it's so strong + lack of moisture = breakage at times. I know some breakage is inevitable, but mine seems to be due to extra strong hair that NEEDS moisture.
And the part that breaks off isn't the colored part, the nape and crown are growing well and staying intact( although not as soft as I'd like)
I know this was LONG -- but I yearn for a solution!
I even tried an ACV rinse, maybe I had too much build up when I tried it so it didn't work???