What are the key ingredients in AQUASOURCE DEEP SERUM?

AQUASOURCE DEEP SERUM contains 31 ingredients. Key actives include: Water, Bis-Peg-18 Methyl Ether Dimethyl Silane, Alcohol Denat., Glycerin, Butylene Glycol, and more.

Does AQUASOURCE DEEP SERUM contain comedogenic or pore-clogging ingredients?

AQUASOURCE DEEP SERUM contains potentially comedogenic or irritating ingredients: Alcohol Denat., Limonene, Linalool, Benzyl Alcohol, Citral, Parfum. Always patch test before full use.

How is the safety of AQUASOURCE DEEP SERUM rated?

Safety ratings for AQUASOURCE DEEP 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/biotherm-aquasource-deep-serum.

Where can I find the full ingredient list for AQUASOURCE DEEP SERUM?

The complete ingredient list, safety analysis, and community reviews for AQUASOURCE DEEP SERUM are available on SkinWis at https://www.skinwis.com/product/biotherm-aquasource-deep-serum.

Brand BIOTHERM

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AQUASOURCE DEEP SERUM

Updated on: 26/08/2025

Total Ingredients

analysed

20 of 31

Skin-Safe

low risk

7 of 31

Potential Irritants

may irritate sensitive skin

0 of 31

Potential Pore-Clogging

comedogenic risk

About this product

31 ingredients

7 potential irritant

none pore-clogging

BIOTHERM product. Contains fragrance — patch test if sensitive. 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

Water

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Plaque Prevention Agent Skin Enhancer Ingredient Dissolver

Bis-Peg-18 Methyl Ether Dimethyl Silane

Solubility Booster Foam Enhancer Cleansing Surfactant +4

Alcohol Denat.

Comedogenic: Very low risk

Safety: Moderate risk

Irritancy: High risk

Thickness Regulator Germ Fighter Ingredient Dissolver +3

Glycerin

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Fragrance Provider Moisture Magnet Thickness Regulator +7

Butylene Glycol

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Low risk

Skin Enhancer Moisture Magnet Thickness Regulator +2

Peg-20

Safety: Low risk

Irritancy: Low risk

Moisture Magnet Ingredient Dissolver

Mannose

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Moisture Magnet

Methyl Gluceth-20

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Moisture Magnet Skin Hydrator

Propylene Glycol

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Moderate risk

General Skin Improver Moisture Magnet Thickness Regulator +3

Phenoxyethanol

Safety: Low risk

Irritancy: Moderate risk

Product Protector Germ Fighter

Hydrogenated Lecithin

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Skin Enhancer Emulsifying Surfactant

Carbomer

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Gel Structure Builder Thickness Regulator Emulsion Stabilizer

Caprylyl Glycol

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Low risk

Skin Enhancer Hair Softener Odor Neutralizer +1

Ammonium Polyacryloyldimethyl Taurate

Safety: Very low risk

Irritancy: Very low risk

Thickness Regulator Emulsion Stabilizer

Disodium EDTA

Safety: Low risk

Irritancy: Very low risk

Thickness Regulator Metal Ion Binder

Sodium Hyaluronate

Comedogenic: Very low risk

Safety: Very low risk

Irritancy: Very low risk

Skin Enhancer Moisture Magnet

Sodium Hydroxide

Safety: Low risk

Irritancy: High risk

pH Stabilizer Alcohol Treatment Agent

Limonene

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Ingredient Dissolver Odor Neutralizer

Vitreoscilla Ferment

Safety: Low risk

Irritancy: Very low risk

Skin Enhancer

Benzyl Salicylate

Safety: Moderate risk

Irritancy: High risk

UV Protector for Products Fragrance Provider

T-Butyl Alcohol

Safety: Moderate risk

Irritancy: Moderate risk

Fragrance Provider Alcohol Treatment Agent Ingredient Dissolver

BHT

Safety: Low risk

Irritancy: Low risk

Anti-Aging Protector Scent Provider

Linalool

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Odor Neutralizer

Benzyl Alcohol

Safety: Moderate risk

Irritancy: Moderate risk

Product Protector Fragrance Provider Thickness Regulator +1

Citral

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Taste Enhancer Scent Provider

Tin Oxide

Safety: Low risk

Volume Builder Cloudiness Creator Thickness Regulator +1

Parfum

Safety: Moderate risk

Irritancy: High risk

Fragrance Provider Scent Provider

Ci 77891

Color Provider

Mica

Comedogenic: Very low risk

Safety: Low risk

Irritancy: Very low risk

Volume Builder Cloudiness Creator Color Provider +1

Ci 42090

Safety: Low risk

Hair Color Changer Color Provider

Ci 19140

Safety: Moderate risk

Hair Color Changer Color Provider

Ingredient Name	Safety Profile	Functionality
01 Water	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Plaque Prevention Agent Skin Enhancer +1
02 Bis-Peg-18 Methyl Ether Dimethyl Silane		Solubility Booster Foam Enhancer +5
03 Alcohol Denat.	C 1 Comedogenic: Very low risk S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Thickness Regulator Germ Fighter +4
04 Glycerin	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Fragrance Provider Moisture Magnet +8
05 Butylene Glycol	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 2 Irritancy: Low risk	Skin Enhancer Moisture Magnet +3
06 Peg-20	S 2 Safety: Low risk Ir 2 Irritancy: Low risk	Moisture Magnet Ingredient Dissolver
07 Mannose	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Moisture Magnet
08 Methyl Gluceth-20	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Moisture Magnet Skin Hydrator
09 Propylene Glycol	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 3 Irritancy: Moderate risk	General Skin Improver Moisture Magnet +4
10 Phenoxyethanol	S 2 Safety: Low risk Ir 3 Irritancy: Moderate risk	Product Protector Germ Fighter
11 Hydrogenated Lecithin	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Skin Enhancer Emulsifying Surfactant
12 Carbomer	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Gel Structure Builder Thickness Regulator +1
13 Caprylyl Glycol	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 2 Irritancy: Low risk	Skin Enhancer Hair Softener +2
14 Ammonium Polyacryloyldimethyl Taurate	S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Thickness Regulator Emulsion Stabilizer
15 Disodium EDTA	S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Thickness Regulator Metal Ion Binder
16 Sodium Hyaluronate	C 1 Comedogenic: Very low risk S 1 Safety: Very low risk Ir 1 Irritancy: Very low risk	Skin Enhancer Moisture Magnet
17 Sodium Hydroxide	S 2 Safety: Low risk Ir 4 Irritancy: High risk	pH Stabilizer Alcohol Treatment Agent
18 Limonene	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Ingredient Dissolver +1
19 Vitreoscilla Ferment	S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Skin Enhancer
20 Benzyl Salicylate	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	UV Protector for Products Fragrance Provider
21 T-Butyl Alcohol	S 3 Safety: Moderate risk Ir 3 Irritancy: Moderate risk	Fragrance Provider Alcohol Treatment Agent +1
22 BHT	S 2 Safety: Low risk Ir 2 Irritancy: Low risk	Anti-Aging Protector Scent Provider
23 Linalool	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Odor Neutralizer
24 Benzyl Alcohol	S 3 Safety: Moderate risk Ir 3 Irritancy: Moderate risk	Product Protector Fragrance Provider +2
25 Citral	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Taste Enhancer +1
26 Tin Oxide	S 2 Safety: Low risk	Volume Builder Cloudiness Creator +2
27 Parfum	S 3 Safety: Moderate risk Ir 4 Irritancy: High risk	Fragrance Provider Scent Provider
28 Ci 77891		Color Provider
29 Mica	C 1 Comedogenic: Very low risk S 2 Safety: Low risk Ir 1 Irritancy: Very low risk	Volume Builder Cloudiness Creator +2
30 Ci 42090	S 2 Safety: Low risk	Hair Color Changer Color Provider
31 Ci 19140	S 3 Safety: Moderate risk	Hair Color Changer Color Provider

Potential Irritants

6 flagged

Alcohol Denat. Limonene Linalool Benzyl Alcohol Citral Parfum

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Common Questions

Frequently Asked Questions

Is BIOTHERM AQUASOURCE DEEP SERUM comedogenic?

Appears Non-Comedogenic AQUASOURCE DEEP SERUM appears to be non-comedogenic based on our ingredient analysis. None of its 31 ingredients carry a high comedogenic rating, making it generally suitable for acne-prone and oily skin types.

Is BIOTHERM a good skincare brand?

French luxury skincare brand under L’Oréal, known for water‑based formulations. BIOTHERM makes products such as AQUASOURCE DEEP 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 BIOTHERM.

Is BIOTHERM AQUASOURCE DEEP SERUM safe for sensitive skin?

Use with Caution AQUASOURCE DEEP SERUM may not be ideal for sensitive skin. It contains 8 potential irritant s including <a href="/ingredient/alcohol-denat-" class="font-bold underline hover:text-cyan-700">Alcohol Denat.</a>, <a href="/ingredient/sodium-hydroxide" class="font-bold underline hover:text-cyan-700">Sodium Hydroxide</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 BIOTHERM AQUASOURCE DEEP SERUM clog pores?

Unlikely to Clog Pores Based on our analysis, AQUASOURCE DEEP SERUM is unlikely to clog pores. None of its 31 ingredients have a comedogenic rating above 2.

Who makes BIOTHERM AQUASOURCE DEEP SERUM?

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

What are the ingredients in BIOTHERM AQUASOURCE DEEP SERUM?

AQUASOURCE DEEP SERUM contains 31 ingredients. The first ingredients listed are <a href="/ingredient/water" class="font-bold underline hover:text-cyan-700">Water</a>, <a href="/ingredient/bis-peg-18-methyl-ether-dimethyl-silane" class="font-bold underline hover:text-cyan-700">Bis-Peg-18 Methyl Ether Dimethyl Silane</a>, <a href="/ingredient/alcohol-denat-" class="font-bold underline hover:text-cyan-700">Alcohol Denat.</a>, <a href="/ingredient/glycerin" class="font-bold underline hover:text-cyan-700">Glycerin</a> and <a href="/ingredient/butylene-glycol" class="font-bold underline hover:text-cyan-700">Butylene Glycol</a>. Each ingredient includes a comedogenic rating, irritancy rating, and safety score. View the full annotated ingredient list above.

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