What are the key ingredients in C Tetra+ Intense Serum?

C Tetra+ Intense Serum contains 21 ingredients. Key actives include: Squalane, Simmondsia Chinensis Seed Oil, Tetrahexyldecyl Ascorbate, Dimethicone, Candida Bombicola/Glucose/Methyl Rapeseedate Ferment, and more.

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

C Tetra+ Intense Serum contains potentially comedogenic or irritating ingredients: Citrus Grandis Peel Oil, Limonene. Always patch test before full use.

How is the safety of C Tetra+ Intense Serum rated?

Safety ratings for C Tetra+ Intense 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-intense-serum.

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

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

Brand Medik8

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C Tetra+ Intense Serum

Updated on: 10/05/2025

Total Ingredients

analysed

10 of 21

Skin-Safe

low risk

2 of 21

Potential Irritants

may irritate sensitive skin

0 of 21

Potential Pore-Clogging

comedogenic risk

About this product

21 ingredients

2 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

Squalane

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Lipid Restorer Skin Enhancer Hair Softener +1

Simmondsia Chinensis Seed Oil

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Skin Enhancer Hair Softener Skin Softener

Tetrahexyldecyl Ascorbate

Dimethicone

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Skin Enhancer Skin Softener Defensive Shield +1

Candida Bombicola/Glucose/Methyl Rapeseedate Ferment

Cleansing Surfactant Oil Control Agent Germ Fighter +3

Citrus Grandis Peel Oil

Safety: High risk

Irritancy: High risk

Fragrance Provider Skin Enhancer Scent Provider

Ethyl Linoleate

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Low risk

Fragrance Provider Skin Softener

Passiflora Edulis Seed Oil

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Very low risk

Skin Softener

Tocopheryl Acetate

Comedogenic: Low risk

Safety: Very low risk

Irritancy: Low risk

Anti-Aging Protector Skin Enhancer

Panax Ginseng Root Oil

Safety: Moderate risk

Irritancy: Moderate risk

Skin Enhancer

Olea Europaea Fruit Oil

Comedogenic: Low risk

Safety: Low risk

Irritancy: Very low risk

Fragrance Provider Skin Enhancer Scent Provider

Helianthus Annuus Seed Oil

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

General Skin Improver Moisture Barrier Creator Ingredient Dissolver +1

Prunus Armeniaca Kernel Oil

Comedogenic: Low risk

Safety: Low risk

Irritancy: Very low risk

Skin Enhancer Scent Provider

Prunus Amygdalus Dulcis Oil

Comedogenic: Low risk

Safety: Low risk

Irritancy: Low risk

Skin Enhancer

Ppg-12/Smdi Copolymer

Skin Enhancer Hairstyle Holder Protective Coating Agent +1

Limonene

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Ingredient Dissolver Odor Neutralizer

Ingredient Name	Safety Profile	Functionality
01 Squalane	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Lipid Restorer Skin Enhancer +2
02 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
03 Tetrahexyldecyl Ascorbate		N/A
04 Dimethicone	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Skin Enhancer Skin Softener +2
05 Candida Bombicola/Glucose/Methyl Rapeseedate Ferment		Cleansing Surfactant Oil Control Agent +4
06 Citrus Grandis Peel Oil	S 4 Safety: High risk Ir 4 Irritancy: High risk	Fragrance Provider Skin Enhancer +1
07 Ethyl Linoleate	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 2 Irritancy: Low risk	Fragrance Provider Skin Softener
08 Passiflora Edulis Seed Oil	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Skin Softener
09 Tocopheryl Acetate	C 2 Comedogenic: Low risk S 1 Safety: Very low risk Ir 2 Irritancy: Low risk	Anti-Aging Protector Skin Enhancer
10 Panax Ginseng Root Oil	S 3 Safety: Moderate risk Ir 3 Irritancy: Moderate risk	Skin Enhancer
11 Olea Europaea Fruit Oil	C 2 Comedogenic: Low risk S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Fragrance Provider Skin Enhancer +1
12 Helianthus Annuus Seed Oil	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	General Skin Improver Moisture Barrier Creator +2
13 Prunus Armeniaca Kernel Oil	C 2 Comedogenic: Low risk S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Skin Enhancer Scent Provider
14 Prunus Amygdalus Dulcis Oil	C 2 Comedogenic: Low risk S 2 Safety: Low risk Ir 2 Irritancy: Low risk	Skin Enhancer
15 Ppg-12/Smdi Copolymer		Skin Enhancer Hairstyle Holder +2
16 Limonene	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Ingredient Dissolver +1
17 Jojoba Oil		N/A
18 Passion fruit oil		N/A
19 Form of vitamin E		N/A
20 Sunflower Seed Oil		N/A
21 Apricot Kernel Oil		N/A

Potential Irritants

2 flagged

Citrus Grandis Peel Oil Limonene

Community

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Common Questions

Frequently Asked Questions

Is Medik8 C Tetra+ Intense Serum comedogenic?

Appears Non-Comedogenic C Tetra+ Intense Serum appears to be non-comedogenic based on our ingredient analysis. None of its 21 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+ Intense 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+ Intense Serum safe for sensitive skin?

Use with Caution C Tetra+ Intense Serum may not be ideal for sensitive skin. It contains 2 potential irritant s including <a href="/ingredient/citrus-grandis-peel-oil" class="font-bold underline hover:text-cyan-700">Citrus Grandis Peel Oil</a> and <a href="/ingredient/limonene" class="font-bold underline hover:text-cyan-700">Limonene</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+ Intense Serum clog pores?

Unlikely to Clog Pores Based on our analysis, C Tetra+ Intense Serum is unlikely to clog pores. None of its 21 ingredients have a comedogenic rating above 2.

Who makes Medik8 C Tetra+ Intense Serum?

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

What are the ingredients in Medik8 C Tetra+ Intense Serum?

C Tetra+ Intense Serum contains 21 ingredients. The first ingredients listed are <a href="/ingredient/squalane" class="font-bold underline hover:text-cyan-700">Squalane</a>, <a href="/ingredient/simmondsia-chinensis-seed-oil" class="font-bold underline hover:text-cyan-700">Simmondsia Chinensis Seed Oil</a>, <a href="/ingredient/tetrahexyldecyl-ascorbate" class="font-bold underline hover:text-cyan-700">Tetrahexyldecyl Ascorbate</a>, <a href="/ingredient/dimethicone" class="font-bold underline hover:text-cyan-700">Dimethicone</a> and <a href="/ingredient/candida-bombicola-glucose-methyl-rapeseedate-ferment" class="font-bold underline hover:text-cyan-700">Candida Bombicola/Glucose/Methyl Rapeseedate Ferment</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+ Intense Serum?

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