GK Hair Global Keratin GKHAIR Smoothing Serum

Breakdown

4 ingredients to avoid

GK Hair Global Keratin GKHAIR Smoothing Serum scores 15/100 on Tallow — our avoid band. That number comes from what is on the label: the ingredients, how processed it is, and what it is packaged in. It is not a verdict on your diet — Tallow does not weigh calories, portion size or how often you eat it, so a high score means the ingredients are clean, not that the food is unlimited.

GK Hair Global Keratin GKHAIR Smoothing Serum lists 8 ingredients, starting with Cyclopentasiloxane, Cyclomethicone, Dimethicone, Crosspolymer and Argania Spinosa (Argan) Kernel Oil. Ingredients are listed in descending order by weight, so the first few make up most of what you are eating.

At 15/100 GK Hair Global Keratin GKHAIR Smoothing Serum scores worse than most hair treatments & masks we have scored. A higher-scoring option in hair treatments & masks is Natural King Pro-Growth Jamaican Black Castor Hair & Beard Oil at 100/100.