Kosas

What it is: A peptide lip treatment, lip oil, and gloss in one that visibly plumps and hydrates, all while providing a juicy slick of color.

Highlighted Ingredients:

- Hyaluronic Acid: Attracts water and locks in hydration.

- Peptides: Visibly plump.

- Evening Primrose Oil: Protects.

Ingredient Callouts: Free of sulfates SLS and SLES and parabens. This product is also vegan and cruelty-free.

What Else You Need to Know: Nourishing ingredients including hyaluronic acid, peptides, and evening primrose oil are clinically shown to visibly plump, hydrate, smooth, and firm—rapidly and over time. The non-sticky, vegan formula has a soft comfortable feel and high shine, vinyl look that can be layered for more color payoff.

Clinical Results: In 4-week expert-graded study on 33 people, after 28 days of daily use:

- Participants reported 249% increase in lip plumpness

- Participants reported 199% increase in hydration

- Participants reported 282% increase in smoothness

In a consumer study of 33 people, after 4 weeks of use:

- 100% agree their lip condition is noticeably improved

- 100% agree their lips are more moisturized

- 100% agree their lips look smoother

This product is an Allure Best of Beauty award winner.

Clean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.