What are the key ingredients in C Tetra Eye Serum?

C Tetra Eye Serum contains 12 ingredients. Key actives include: Simmondsia Chinensis Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, and more.

Does C Tetra Eye Serum contain comedogenic or pore-clogging ingredients?

C Tetra Eye Serum contains potentially comedogenic or irritating ingredients: Citrus Grandis Peel Oil, Limonene, Citral, Linalool, Geraniol. Always patch test before full use.

How is the safety of C Tetra Eye Serum rated?

Safety ratings for C Tetra Eye Serum are calculated based on individual ingredient analysis, covering comedogenicity, irritancy, and overall safety scores. See the full breakdown at https://www.skinwis.com/product/medik8-c-tetra-eye-serum.

Where can I find the full ingredient list for C Tetra Eye Serum?

The complete ingredient list, safety analysis, and community reviews for C Tetra Eye Serum are available on SkinWis at https://www.skinwis.com/product/medik8-c-tetra-eye-serum.

Brand Medik8

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C Tetra Eye Serum

Updated on: 02/08/2025

Total Ingredients

analysed

4 of 12

Skin-Safe

low risk

5 of 12

Potential Irritants

may irritate sensitive skin

0 of 12

Potential Pore-Clogging

comedogenic risk

About this product

12 ingredients

5 potential irritant

none pore-clogging

Medik8 product. Mostly fragrance‑free. Formula aimed at oily and acne-prone skin. Patch-test if you have very reactive skin.

Formulation Analysis

Click any ingredient to view full details

C: Comedogenic·S: Safety·Ir: Irritancy

1 Very safe

2 Safe

3 Moderate

4 Risky

5 Avoid

C: Comedogenic·S: Safety·Ir: Irritancy

1 Very safe

2 Safe

3 Moderate

4 Risky

5 Avoid

Simmondsia Chinensis Seed Oil

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Skin Enhancer Hair Softener Skin Softener

Cyclopentasiloxane

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Very low risk

Skin Enhancer Ingredient Dissolver Hair Softener +1

Cyclohexasiloxane

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Very low risk

Ingredient Dissolver Hair Softener Skin Softener

Tetrahexyldecyl Ascorbate

Tocopheryl Acetate

Comedogenic: Low risk

Safety: Very low risk

Irritancy: Low risk

Anti-Aging Protector Skin Enhancer

Citrus Grandis Peel Oil

Safety: High risk

Irritancy: High risk

Fragrance Provider Skin Enhancer Scent Provider

Limonene

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Ingredient Dissolver Odor Neutralizer

Citral

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Taste Enhancer Scent Provider

Linalool

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Odor Neutralizer

Geraniol

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Revitalizer

Jojoba Oil

Form of vitamin E

Ingredient Name	Safety Profile	Functionality
01 Simmondsia Chinensis Seed Oil	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Skin Enhancer Hair Softener +1
02 Cyclopentasiloxane	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Skin Enhancer Ingredient Dissolver +2
03 Cyclohexasiloxane	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Ingredient Dissolver Hair Softener +1
04 Tetrahexyldecyl Ascorbate		N/A
05 Tocopheryl Acetate	C 2 Comedogenic: Low risk S 1 Safety: Very low risk Ir 2 Irritancy: Low risk	Anti-Aging Protector Skin Enhancer
06 Citrus Grandis Peel Oil	S 4 Safety: High risk Ir 4 Irritancy: High risk	Fragrance Provider Skin Enhancer +1
07 Limonene	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Ingredient Dissolver +1
08 Citral	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Taste Enhancer +1
09 Linalool	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Odor Neutralizer
10 Geraniol	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Revitalizer
11 Jojoba Oil		N/A
12 Form of vitamin E		N/A

Potential Irritants

5 flagged

Citrus Grandis Peel Oil Limonene Citral Linalool Geraniol

Community

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Common Questions

Frequently Asked Questions

Is Medik8 C Tetra Eye Serum comedogenic?

Appears Non-Comedogenic C Tetra Eye Serum appears to be non-comedogenic based on our ingredient analysis. None of its 12 ingredients carry a high comedogenic rating, making it generally suitable for acne-prone and oily skin types.

Is Medik8 a good skincare brand?

Medik8 is a UK clinical skincare brand founded by Adam Minto. It focuses on professional, science-based formulations for anti-aging, acne, and skin repair using ingredients like retinol, peptides, and antioxidants. Medik8 makes products such as C Tetra Eye Serum that include some ingredients which may be problematic for sensitive or acne-prone skin. Check individual product ingredient lists and community reviews before deciding. Read more about Medik8.

Is Medik8 C Tetra Eye Serum safe for sensitive skin?

Use with Caution C Tetra Eye Serum may not be ideal for sensitive skin. It contains 5 potential irritant s including <a href="/ingredient/citrus-grandis-peel-oil" class="font-bold underline hover:text-cyan-700">Citrus Grandis Peel Oil</a>, <a href="/ingredient/limonene" class="font-bold underline hover:text-cyan-700">Limonene</a> and <a href="/ingredient/citral" class="font-bold underline hover:text-cyan-700">Citral</a> . Common triggers like Fragrance, Limonene, and Linalool can cause redness or reactions in sensitive or barrier-compromised skin. We recommend patch testing before full use.

Does Medik8 C Tetra Eye Serum clog pores?

Unlikely to Clog Pores Based on our analysis, C Tetra Eye Serum is unlikely to clog pores. None of its 12 ingredients have a comedogenic rating above 2.

Who makes Medik8 C Tetra Eye Serum?

This product is from Medik8. See more products from Medik8.

What are the ingredients in Medik8 C Tetra Eye Serum?

C Tetra Eye Serum contains 12 ingredients. The first ingredients listed are <a href="/ingredient/simmondsia-chinensis-seed-oil" class="font-bold underline hover:text-cyan-700">Simmondsia Chinensis Seed Oil</a>, <a href="/ingredient/cyclopentasiloxane" class="font-bold underline hover:text-cyan-700">Cyclopentasiloxane</a>, <a href="/ingredient/cyclohexasiloxane" class="font-bold underline hover:text-cyan-700">Cyclohexasiloxane</a>, <a href="/ingredient/tetrahexyldecyl-ascorbate" class="font-bold underline hover:text-cyan-700">Tetrahexyldecyl Ascorbate</a> and <a href="/ingredient/tocopheryl-acetate" class="font-bold underline hover:text-cyan-700">Tocopheryl Acetate</a>. Each ingredient includes a comedogenic rating, irritancy rating, and safety score. View the full annotated ingredient list above.

What do users say about Medik8 C Tetra Eye Serum?

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