as a curly hair girly myself, i headcanon that elain has curly hair (im thinking around around 3a to 3b) but because in the human lands it was considered uncouth by society, mama archeron used a hot comb to straighten her hair regularly to the point that it got heat damage and just never curled again. thats until shes introduced to hair serums, antidotes and hair care by lucien who religiously follows an eleven-step hair care routine, and her curls are slowly restored as he helps to wash and style them for her.