If you’re using these star ingredients in your skincare routine, there are only a few others you can use to supplement them. Hyaluronic acid, which came in at a close third (20.79%), is an humectant that can be beneficial to those with parched skin. “It is a superstar at alleviating dry skin … Hyaluronic acid is a moisture binder, which means that it will attach itself to the water in the cells making them ‘plump,'” board-certified dermatologist Ava Shamban told Byrdie.

But if your skin concerns are redness and sensitivity, ingredients like niacinamide might help cool them down. Over 30 respondents chose the ingredient, which is also known as nicotinamide. “Nicotinamide helps restore cellular energy, repair damaged DNA, and reduce the immunosuppressive effects of sun-induced UV rays,” dermatologist Jennifer Herrmann told Byrdie.

The last ingredient in the survey was glycolic acid, an AHA that is used for exfoliation and improving skin tone. Since there are many other exfoliating agents, it makes sense that 12.01% of the respondents chose this as their un-skippable step. If you ‘re unsure what your favorite step of the routine is, refer to advice from dermatologist Macrene Alexiades. “Protect your barrier…with barrier repair ingredients such as hyaluronic acid, plant-derived fatty acids, and healing ceramides,” she told The List.