any child. boy or girl. going through signs of early puberty will most likely need antiperspirant and a deodorant! it is not harmful and it will not change her maturation rate in any way. buy her some and encourage frequent showers and changes of clothes. when my grand-daughter was this age the teacher sent home a note suggesting deodorant-antiperspirants so it is better if this comes from you. as a matter of fact she was thrilled knowing that she was starting puberty. she didn't know that "stink" often is the hallmark sign.
are antiperspirants harmful for a 10 year old girl? i heard they lead to early puberty and are not good for kids.