I did not expect for the tingling sensation. It surprised me, I thought my hair was going to fall out ?. But I'm good! What I personally like about this product is that you feel the hair oil penetrating your scalp. Your scalp actually feels like a hot oil treatment, the tingling warm Scentsation doesn't last long, either. I wish it had options for a bigger bottle. I'm purchasing my 2nd bottle after I post this review.To the young lady who threw hers away. Why didn't you send it back for a refund or give it to someone who would appreciate it. I hate you feel like you do, but for me it works. God Bless ?