my hair has been not flat for quite a while, not root curl, but just perked up. however, there are days when i leave in too much conditioner and i can tell after i blot and scrunch my hair i will have flat top.
what i've been doing (actually got the idea watching my daughter refresh my granddaughters' 3c curls, and this she got from our hairstylist) is taking random sections on top that seem to be 'stuck' to head, or under other curls, and i twirl them. nothing precise, just picking up sections here and there from the top that seem they are weighed down or caught under another section of hair, and giving them a twirl and setting them down.
it's not that it gives me root curl (i do have a very few random 3b curls on the crown, but the hair i am talking about is typical 3a, flat at the root), it seems to give it more 'umph!.' wave/curl. it takes me about 10-20 seconds to do this. and it makes a big difference.
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3a, some 2c & 3b, medium texture, porosity normal, low elasticity
washing/cowashing, conditioning, protein tx: [I] curl junkie products
leave in:cj conditioners and treatments as leave in
styling: cj aloe fix gel, cj pattern pusha, cj honey butta leave in, cj cccc, cj ciab.
sealants - jane carter nourish & shine