Eyes

Gel Liner Onyx

3g / .106 oz

Onyx is our deep black matte gel liner—intensely pigmented and microplastic-free. Designed to create ultra-precise lines or softly smudged edges, it glides on effortlessly and sets to a long-lasting finish. This water-based liner sets to stay in place all day without smudging or fading.

Rated 4.4 out of 5
Based on 104 reviews

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Benefits

Intense, Rich Pigment

Onyx delivers a deep, matte black finish that instantly defines and amplifies the eyes.

Versatile Application

Create precise lines, smudged smoky looks, or a soft lash-defining effect—all with a single product.

Long-Lasting

Once set, it stays in place all day without smudging or fading.

Water-Based & Microplastic-Free

aligned with Aleph’s clean, sustainable standards.

Nourishing & Protective

With a plant-based film former that creates a flexible yet lasting hold, it’s kind to the delicate eye area.

Easy to Remove

The water-based formula makes it effortless to remove at the end of the day.

Ingredients

Hero Ingredients

  • Raspberry Ketone

    Traditionally used in Chinese medicine and the Ayurvedic tradition of India, this natural antimicrobial acts as strong antioxidant and free radical scavenger and helps to protect the elasticity of the skin.

  • Ricinus Communis (Castor) Seed Oil (Organic)

    A thick plant oil high with a low molecular weight to penetrate the skin easily for added skin softening.

Full List

Water/Aqua, *Copernicia Cerifera (Carnauba) Wax, Pullulan, Oleic Acid, Palmitic Acid, Propanediol, Stearic Acid, Capryloyl Glycerin/Sebacic Acid Copolymer, Glyceryl Stearate SE, Glyceryl Rosinate, Hydrogenated Olive Oil, Ricinus Communis (Castor) Seed Oil, C13-15 Alkane, Sorbitol, Phenethylalcohol, Sucrose Polystearate, Heptyl Undecylenate, Glyceryl Behenate, Raspberry Ketone, Glyceryl Caprylate, Sodium Hydroxide, Stearoyl Glutamic Acid, *Totarol, Acacia Senegal Gum, Polyhydroxystearic Acid, Cetyl Palmitate, Tocopherol, Glyceryl Undecylenate, Trehalose, Helianthus Annuus (Sunflower) Seed Oil, Iron Oxide (CI 77499). *Organic

Pro Tips

Subtle/Tightline

An invisible liner to define the eyes.

Using Aleph Liner/Brow Brush, press Gel Liner Onyx into the base of the lashes along the length of the lash line on the lid - Always apply to the skin and avoid the water line.

Line

To intensify any eye look

Using Aleph Liner/Brow Brush, press Gel Liner Onyx along the upper lash line from the inner most lashes to the outer lashes gently gliding the brush along to create the desired thickness.

Wing/Graphic

Create an upturned elongated eye Starting from either the inner lashes or the lashes above the inner edge of the iris, using Aleph Liner/Brow Brush, press Gel Liner Onyx into the base of the lashes, then gradually build to a thicker line at the outer corner. Position Liner/Brow brush at an angle following the up curve of under eye lashes to mark the wing, then meet with the outer thickness of the line.

Pair With

 
Liner/Brow Brush
Tools

£17

 
Prep/Finish
Powder

£29

Gel Liner Onyx

Gel Liner Onyx

Aleph Eye/Lip Multiliner Noir

Looking for something for the waterline?

While we avoid using Gel Liner Onyx on the waterline, the new Eye/Lip Multi-Liner Pencil in Noir is perfect for waterline applications.

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Aleph Liner/Brow Brush
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Liner/Brow Brush

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Lift / Lengthen Mascara

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Hybrid Eye Pigment: Echo

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average rating 4.4 out of 5
Based on 104 reviews
  • 5 Stars
    78 Reviews
  • 4 Stars
    7 Reviews
  • 3 Stars
    9 Reviews
  • 2 Stars
    6 Reviews
  • 1 Star
    4 Reviews
82% of reviewers would recommend this product to a friend
104 Reviews
Reviewed by Jody J., from New Zealand
Verified Buyer
I recommend this product
Age Range
35 - 44
Skin Type
Combination
Rated 5 out of 5
Review posted

Irritation free

Is nice and smooth, does not irritate my eyes which is a miracle as most eye products seem to. It is new to me so been practicing at night before shower.. haha as you can see in picture not perfect.... so can't attest to how long or well it wares for a day. Nice black colour.

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Reviewed by Charlotte M., from United States
Verified Buyer
I recommend this product
Age Range
65+
Skin Type
Balanced
Rated 5 out of 5
Review posted

The Perfect Liner

You can apply such a subtle line with this magnificent liner that no one sees liner. They just see beautiful eyes.

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Reviewed by Marnie P., from Australia
Verified Buyer
I recommend this product
Age Range
45 - 54
Skin Type
Combination
Rated 4 out of 5
Review posted

Looks great with practice

When applied well it looks great and mostly stays all day. It’s taken me a while to be able to create wings, however I’ve been using the technique provided in the video tutorial to open up my eyes instead. I now use this for a natural everyday look. The tool has helped but I’m still getting used to it as I’ve always used a pencil liner. I will continue to practice my wings for special occasions. I recommend this product.

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Reviewed by Ann R. B., from United States
Verified Buyer
I recommend this product
Age Range
65+
Skin Type
Dry
Rated 5 out of 5
Review posted

Easy to use

Love this product and this company.

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Reviewed by Patricia C., from New Zealand
Verified Buyer
Age Range
55 - 64
Skin Type
Balanced
Rated 3 out of 5
Review posted

Gel liner review

Was a bit harder to apply neatly than had anticipated. Prob need lots more practice… and to get just the right amount on liner brush

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Aleph Beauty

We’ve reached out to help with a few tips for a smoother application, Patricia. Thank you so much for your honest feedback. 💛