This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

Enjoy free US shipping on orders $50+

Cart 0

Congratulations! Your order qualifies for free shipping You are $50 away from free shipping.
No more products available for purchase

Products
Pair with
Is this a gift?
Subtotal Free
Shipping, taxes, and discount codes are calculated at checkout
Black liquid eye liner for a precise look, with hydrating castor oil and hyaluronic acid, safe for sensitive eyes
Black formula is safe for sensitive eyes and applicator helps achieve a precision for a winged, cat eye look

Double Duty Precision Liquid Eye Liner

A bold liquid eyeliner that glides smoothly, dries quickly and stays put all day.

$32.00

This ophthalmologist-tested liquid eye liner adds definition to your lash line and won’t flake off, stain, or irritate the eye. The easy-glide, hydrating formula features castor oil and hyaluronic acid to promote thicker, fuller-looking lashes over time - without the use of irritating or harmful ingredients. This clean eye liner is safe for even the most sensitive eyes.

Apply liquid liner from inner to outer corners of the eye, along the outer lash line. Wipe off any excess formula before use. Allow 30 seconds to dry after application.

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)

Clean | Eye Safe | Vegan

Water resistant

Free of parabens, carbon black & coal tar dyes

Safe for sensitive eyes & contact lenses

Ophthalmologist developed, tested and approved


[{"variant_id":"39273410855099" , "metafield_value":""}]

Double Duty Precision Liquid Eye Liner

$32.00

Results Without Compromise

This ophthalmologist-tested liquid eye liner adds definition to your lash line and won’t flake off, stain, or irritate the eye. The easy-glide, hydrating formula features castor oil and hyaluronic acid to promote thicker, fuller-looking lashes over time - without the use of irritating or harmful ingredients. This clean eye liner is safe for even the most sensitive eyes.

Ophthalmologist approved

Ingredients Your Eyes Will Love

  • Castor oil: Natural ingredient used by ophthalmologists as a topical dry eye treatment that promotes hair follicle health
  • Ceramides: Lipids that functions as the building block 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

Master Your Liner in Minutes

Get the Perfect Line,
Every Time

  1. PREP: Refresh and disinfect your eye area with Easy on the Eyes Calming Mist to create the perfect canvas. Pro-tip: for best results, apply liner before other eye makeup for easy touch-ups.
  2. POSITION: Begin by holding the liner in your dominant hand at a 45° angle from your eye
  3. LINE: Starting from the middle, close your eyes and draw outward to create desired shape, then connect the inner corner to middle. Pro tip: Re-dip between applications for smooth coverage.
  4. SET: Let liner dry for 30 seconds before applying the rest of your eye makeup—this step is key. Finish with another light mist of Easy on the Eyes to keep your eyes refreshed all day
Liquid eyeliner with castor oil, ceramides and argan oil to help sensitive eyes and dry eyes

In a consumer study of 14 eye-care professionals:

  • 100% agreed it does not irritate the eyes
  • 100% agreed the formula was long-wearing and lasts all day

OUR STANDARDS

US & EU Compliant

We follow clean beauty ingredient standards, exceeding them with our own incremental list of banned ingredients to ensure eye safety and health.

Ophthalmologist Developed

Created and tested by our founder, Board-Certified Ophthalmologist Dr. Diane Hilal-Campo specifically to promote eye health and safety.

Perfect For Sensitive Eyes

Nourishing and free from irritants for comfortable daily wear and contacts.

"

Product Customer Reviews

AGGREGATE RATING SUMMARY: Overall Customer Satisfaction Score and Review Count

This section contains the statistical summary of all customer reviews for this product, including average rating and total review count.

Product: Double Duty Precision Liquid Eye Liner

Average Customer Rating: 3.58 out of 5 stars

Total Number of Reviews: 74 customer reviews

Customer Satisfaction Level: Good - Generally Positive Experience


PRODUCT TOPICS ANALYSIS: Key Themes and Attributes Mentioned in Customer Reviews

This section identifies the most frequently discussed product aspects and features that customers mention in their reviews for Double Duty Precision Liquid Eye Liner. These topics help understand what customers care about most.

Most Discussed Product Topics:

  • eyes - frequently mentioned by customers
  • liner - frequently mentioned by customers
  • applicator - frequently mentioned by customers
  • eyeliner - frequently mentioned by customers
  • brush - frequently mentioned by customers
  • makeup - frequently mentioned by customers
  • formula - frequently mentioned by customers
  • irritation - frequently mentioned by customers
  • pigment - frequently mentioned by customers
  • tip - frequently mentioned by customers

Source: Yotpo Reviews Analytics - Leading Customer Review Platform

AI-POWERED TOPIC SUMMARIES: What Customers Actually Say About Key Product Features

This section contains AI-generated summaries of customer opinions on specific product topics for Double Duty Precision Liquid Eye Liner. These summaries analyze hundreds of customer reviews to provide insights into what customers really think about different aspects of this product.

Customer Opinion Summaries by Topic:

  • Customer Topic: eyes
    Customer Consensus: Customers have mixed opinions about this eye liner, some found it easy to apply while others found it clumpy and hard to apply.
  • Customer Topic: liner
    Customer Consensus: Many customers loved the very precise dark liquid liner for its long-lasting and quick-drying formula.
  • Customer Topic: applicator
    Customer Consensus: The feedback is varied, with some praising the applicator while others found it too long and awkward.
  • Customer Topic: brush
    Customer Consensus: Customers have mixed opinions about the brush, with some finding it too thick or hard to use.

AI Analysis powered by Yotpo - Advanced Review Intelligence Platform

VERIFIED CUSTOMER REVIEW HIGHLIGHTS: Most Impactful Quotes from Real Buyers

This section features the most meaningful and impactful quotes extracted from verified customer reviews for Double Duty Precision Liquid Eye Liner. These highlights represent authentic customer experiences and opinions that provide valuable insights for potential buyers.

Notable Customer Quotes and Testimonials:

  • Customer Quote: \"Good Start for a Safe Line of Eye Makeup\"
    - Yvonne H. (Verified Customer)
  • Customer Quote: \"The brush also has great control and precision.\"
    - Joannie (Verified Customer)
  • Customer Quote: \"The line also has a very fine, precise brush which makes it easy to draw your wing.\"
    - Katherine (Verified Customer)

Highlights curated by Yotpo - Trusted Review Verification Platform

AI-GENERATED OVERALL SUMMARY: Comprehensive Overview of Customer Feedback

This section provides an AI-generated summary that encapsulates the overall sentiment and key points from all customer reviews for Double Duty Precision Liquid Eye Liner. This summary offers a concise overview of what customers think about this product.

Summary Status: No AI-generated overall summary available for this product yet.



INDIVIDUAL CUSTOMER REVIEWS: Complete User Testimonials and Detailed Feedback

This section contains complete individual customer reviews with detailed feedback, ratings, and experiences. Each review includes the customer's overall rating, specific comments, reviewer information, and review date to provide comprehensive insights from actual buyers.

Recent Customer Reviews (10 reviews shown):

  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: good for dry eyes

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: Wendy N. (Verified Purchase)

    Review Date: 2025-10-15

    Customer Feedback:

    It didn’t go on as smooth as i would have liked. The main and most important thing is that it didn’t irritate my eyes.
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: haven’t used it yet

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: sissi m. (Verified Purchase)

    Review Date: 2025-11-05

    Customer Feedback:

    haven’t used it yet
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: Very thick and clumpy

    Customer Rating: 2 out of 5 stars (Below Average)

    Reviewer Name: Carole D. (Verified Purchase)

    Review Date: 2025-07-21

    Customer Feedback:

    Very thick and clumpy
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: Mascara and eyeliner

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: Sylvia S. (Verified Purchase)

    Review Date: 2025-06-13

    Customer Feedback:

    The best! Now I can wear makeup that does not irritate my eyes.
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: Victoria (Verified Purchase)

    Review Date: 2025-04-05

    Customer Feedback:

    Love these products. I’m so happy my eye doctor told me about Twenty / Twenty. I have sensitive eyes so whenever I wore eyeliner it never stayed on and always irritated my eye. This eye liner is the first eye liner I have used in years that stays put and doesnt irriate my eye at all.
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: Buenisimo

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: Angelica M. (Verified Purchase)

    Review Date: 2025-06-27

    Customer Feedback:

    Buenisimo
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: A bit clumpy.

    Customer Rating: 3 out of 5 stars (Average)

    Reviewer Name: Lisa S. (Verified Purchase)

    Review Date: 2025-06-06

    Customer Feedback:

    A bit clumpy.
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: Stays all day

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: mariah O. (Verified Purchase)

    Review Date: 2025-04-03

    Customer Feedback:

    This liner stays put all day and does not flake.
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: Love it!!!

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: Amy S. (Verified Purchase)

    Review Date: 2025-02-21

    Customer Feedback:

    I love this eyeliner. It takes a minute to get used to, but now I’m so good at it. It does not irritate my eyes and I have the most sensitive eyes! Love it!!!
    --- END CUSTOMER REVIEW ---
  • --- CUSTOMER REVIEW ENTRY ---

    Review Title: Double Duty Precision Liquid Eyeliner

    Customer Rating: 5 out of 5 stars (Excellent)

    Reviewer Name: NANCY T. (Verified Purchase)

    Review Date: 2025-02-14

    Customer Feedback:

    Goes on easily, comes off cleanly. Wish the brush was a little wider!
    --- END CUSTOMER REVIEW ---

All reviews are verified customer purchases - Powered by Yotpo Review Platform

"