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 4.5 out of 5
Based on 97 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

£30

Raspberry Ketone

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.

Key Benefits:
Preservative booster
Helps to protect elasticity of the skin
Derived From:

Red Raspberries

Ricinus Communis (Castor) Seed Oil (Organic)

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.

Key Benefits:
A skin soothing and softening
Derived From:

Castor Bean Plant

Gel Liner Onyx

Gel Liner Onyx

How to use

Definition that lasts

Intro to gel liner

Why Gel Liner is a MUA best favourite trick.

Close
Tightline and wing

Learn how to line like a pro

Close
Aleph Liner/Brow Brush
New Aleph Lift/Lengthen Mascara
Aleph Hybrid Eye Pigment Echo

Flicker

Liner/Brow Brush

Flicker

Lift / Lengthen Mascara

Flicker

Hybrid Eye Pigment: Echo

Pair with

Flicker

Liner/Brow Brush

£17.00

Flicker

Lift / Lengthen Mascara

£27.00

Flicker

Hybrid Eye Pigment: Echo

£23.00

Write a Review
average rating 4.5 out of 5
Based on 97 reviews
  • 5 Stars
    74 Reviews
  • 4 Stars
    6 Reviews
  • 3 Stars
    8 Reviews
  • 2 Stars
    5 Reviews
  • 1 Star
    4 Reviews
82% of reviewers would recommend this product to a friend
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97 Reviews
Reviewed by Tanya F., from Australia
Verified Buyer
I recommend this product
Age Range
55 - 64
Skin Type
Combination
Rated 5 out of 5
Review posted

Beautiful liner for hooded eyes

I haven't used liquid eyeliner for decades. I was tempted to try based on reviews and I haven’t been disappointed. As someone with oily hooded eyes, a bit crepey, I have a challenging use case and so far I am really happy. I use the powder, start with minimal application, then build it up.

I have bought the brush too, and my technique is getting better with each application.

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Reviewed by Pamela S., from Australia
Verified Buyer
I recommend this product
Age Range
65+
Skin Type
Balanced
Rated 5 out of 5
Review posted

A Perfect Line.

I have little experience using eyeliner so was quite nervous.

The special occasion of my son’s wedding demanded I look my best so I bought the Gel Liner and Brush.

After only one practice I was hooked.

Emma’s video showing how to stamp the gel on, in combination with the special shaped brush made it so easy.

No need to worry about shaking hands to create a smooth line.

The rich black colour defined my eyes beautifully.

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Reviewed by Branka I., from Australia
Verified Buyer
I recommend this product
Age Range
55 - 64
Rated 4 out of 5
Review posted

Good.

I’m new to makeup so I find it little bit messy when trying to apply as per video.

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Aleph Beauty

Thanks for your feedback, Branka! We'd love to help you get the most out of your Gel Liner Onyx through a few easy application tips. Please reach out to us at info@alephbeauty.com, and our Support Team will assist you.

Reviewed by Lorna B., from Australia
Verified Buyer
I recommend this product
Age Range
55 - 64
Skin Type
Balanced
Rated 5 out of 5
Review posted

Love this

Need to practice more and the tutorials are great for this. Beautiful product

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Reviewed by Sandy A., from Australia
Verified Reviewer
I recommend this product
Age Range
55 - 64
Skin Type
Dry
Rated 5 out of 5
Review posted

Wanting a different colour.

I haven’t purchased. But would love a different shade. I think onyx would be too dark for me. Thanks

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