Good Serum [SEP] Our daughter used this Vit C / Tea Tree oil for treating a cyst on her back,<br />trying to avoid the need for it surgically removed.<br />But it was already out of hand for home remedies and she ended up having the surgery<br /><br />HOWEVER = this was found to be helpful in treating until the surgery,<br />and aided in the cyst drainage til it was removed.<br /> 4 stars