Hyaluronic Acid Treatment. Frizz Control Serum. Hydrate Reduce Frizz and Brittleness.

Great results very hydrating

I really like this product, I've bought it twice and it's been helping me maintain moisture in my curly hair. I'm a little confused as to why it was $14.95 in the beginning of February, but is now $25.50 in the end of May? Especially when it retails for $11?