Details
Many eyeliners, especially when applied to the waterline, can cause allergic reactions and irritation as well as potentially lead to dry eye disease later in life. This ophthalmologist-tested liquid liner formula won’t flake off, stain, or otherwise irritate the eye while adding definition to your lash line. With regular use, the eye-safe ingredients also promote thicker, fuller-looking lashes over time.
Ingredient Highlights
Castor oil: Natural ingredient used by ophthalmologists as a topical dry eye treatment; contains moisturizing ricinoleic acid that promotes hair follicle health
Ceramides: Lipids that function as the building blocks of the skin’s outer layers that are essential to water retention and hydration
Argan oil: Hydrating oil naturally rich in linoleic acid, which has been shown to help support healthy hair growth
Hyaluronic acid: Holds up to 1,000 times its weight in water for a boost in hydration
Beauty Tip:
Use the tip of the Double Duty Precision Liner to fill in any gaps in your lash line — the rich pigment will make your lashes look thicker instantly, while castor and argan oils help support healthy lash growth over time.
Our Promise
Tenty/Twenty Beauty never uses any of the following ingredients because of their ties to eye damage:
Glitter, Loose mineral powders or Mica, Prostaglandins, Fragrance, Argireline, Acetyl hexapeptide-3, Acetylhexapeptide-8, Benzalkonium chloride
Maggie L –
Nice liner, but hard to apply. A little goopy on the brush and requires precision handling. I love that it doesn’t irritate my eyes though. Shadow stick will smear it if you apply right after so wait a minute to let dry
Agnes F –
Very precise dark liquid liner. Easy to apply, and does not smudge or irritate. My new go to! LOVE!
Todd R. –
I have had NO EYE IRRITATION since using this eyeliner. With my old drug store eyeliner my eyelids would sometimes start to itch, especially after a year of wearing no makeup during COVID. This definitely feels much healthier and safer. The brush also has great control and precision.
blake –
I love this black liquid liner. The wand is precise enough to make my wings and it doesn’t smudge or irritate my eyes.
Katie C –
Between the castor oil in this product plus the Brown & Lash serum, my lashes are seriously beautiful bushes! The line also has a very fine, precise brush which makes it easy to draw your wing. I’m actually allergic to carbon black so I’m so happy to have found a brand that doesn’t use it.
mabelle b –
I love how gentle this eyeliner is on my eyes but also stays put throughout the day! It is easy to use, is healthier for my sensitive eyes, and still looks great at the end of the day.
gertrude –
This eyeliner has such a nice tip that gives precise lines when using. I loved that it stayed in place and didn’t smudge.
Brian –
Love the product, needed a little time to get application right
Eliza M –
Precision is a great word! This is the first time I’ve used liquid liner and it goes on perfectly!
Addie –
This stuff is already making my eyes feel better after 2 weeks, can’t wait to see long-term effects! I only had issues with smudging if my eyes got wet from being too dry in the wind or if i sweat, so not many issues there! Stays on all day just the way it does in the morning
beatrice f –
love it. i use it everyday