Bumble and bumble's bond building repair oil serum expertly tackles the root problem of damaged and dry hair by repairing it from the inside out. Melisa, escentual beauty team.. Why you'll love the bond building repair oil serum . Rejuvenates and protects damaged and frizzy hair.. The honey bond building complex restores and strengthens the cortex of the hair strands.. 2 in 1 hair serum and protectant.protects the hair from heat damage of up to 230 degrees. What you need to know. The repair oil serum is packed with the strongest concentration of the brand's exclusive honey bond building complex. This ingredient is like magic in a bottle and transforms damaged hair into healthy, luscious locks by rebuilding the bonds within the cortex of the hair.. Why it's escentual. The serum smoothes and nourishes the hair from the first use. Plus, the sweet, honey like scent and milky texture of the serum will make you feel like you have been to a luxurious spa or hair salon.. The serum does not stop at repairing the hair. It also protects it from heat of up to 232°c, so you won't ever have to worry about damaging your newly restored locks and can continue styling your hair as you like.. The best way to use it. Apply a couple drops to the lengths of your hair. It can be used on dry hair, but soaks in better when the hair is slightly damp.. The sustainable side. The outer cardboard packaging is recyclable.