Formerly known as Keune STYLE Defrizz Serum N°17 .
Say bye-bye to frizz with this serum! The Keune Smooth Operator Hyper-smoothing Serum is a luxurious, weightless serum that smooths down frizz and flyaways for a sleek look. This serum leaves hair with a luminous and shiny appearance without the greasy feel. The Keune Smooth Operator Hyper-smoothing Serum is infused with vitamin E and vegetable proteins, it leaves your strands nourished and protected. This serum is ideal for all hair types and textures and can be used as a finishing touch when styling hair. Lastly, the Keune Smooth Operator Hyper-smoothing Serum features a refreshing Rhubarb Bloom fragrance as it leaves your hair frizz-free and radiant!
Sommer C.
Apr 29, 2026
Smooth Operator Hyper-smoothing Serum
I love this stuff!! I use it daily!! I use it alone on wet and/or dry hair and my hair never gets greasy from it! I also use it with the spring loaded, I mix the two products in my hand and put it all in my hair and it helps keep the hold on my curls and helps with the frizz!!
would buy again
would recommend
Lynda D.
Apr 29, 2021
Verified Buyer
Smooth Operator Hyper-smoothing Serum
This is the best to control my frizzies especially in the Florida summers!
would buy again
would recommend
Rub a small drop into your hands (a little goes a long way), then work through damp or dry hair.
Dimethicone, Trisiloxane, Dimethiconol, Parfum (Fragrance), Dipropylene Glycol, Tocopheryl Acetate, Aqua (Water), Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Phenoxyethanol, Potassium Sorbate, Trimethylbenzenepropanol.
Product information such as ingredients may change. Always read the packaging or instructions for use before using the product.
Product information such as ingredients may change. Always read the packaging or instructions for use before using the product.
