twenty / twenty beauty Double Duty Precision Liner


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Line your lids with safe and gentle ingredients to promote healthier, fuller-looking lashes with continued use.

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.

Shelf Life: 3 years

Life after Opening: 3 months


 Apply from inner to outer corners of the eye, along the outer lash line.


Aqua/Water/Eau, Acrylates/Octylacrylamide Copolymer, 1,2-Hexanediol, Aminomethyl Propanol, Glyceryl Stearate SE, Caprylic/Capric Triglyceride, Ethylhexyl Palmitate, Pentaerythrityl Tetraisostearate, Acrylates Copolymer, Palmitic Acid, Sodium Dehydroacetate, Magnesium Aluminum Silicate, Stearic Acid, Argania Spinosa Kernel Oil, Lauroyl Lysine, Ricinus Communis (Castor) Seed Oil, Glycerin, Hydroxyethylcellulose, Arginine, Cetyl-PG Hydroxyethyl Palmitamide, Trihydroxystearin, Hydrogenated Lecithin, Ceramide NP, Cholesterol, Propylene Carbonate, Stearalkonium Hectorite, Benzoic Acid, Quartz, Rubus Arcticus Fruit Extract, Rubus Chamaemorus Fruit Extract, Vaccinium Vitis-Idaea Fruit Extract, Sodium Hyaluronate, Palmitoyl Hexapeptide-12, Glucomannan, Iron Oxides (CI 77499)


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