Educational guide
Kiehl's Ultra Facial Oil-Free Gel Cream Versus Biologique Recherche Crème Dermopurifiante Purifying Face Cream
Kiehl's Ultra Facial Oil-Free Gel Cream Versus Biologique Recherche Crème Dermopurifiante Purifying Face Cream This oil-control moisturizer is formulated around Pseudoalteromonas Ferment Extract and Sarcosine to balance excess oil. This oil-control moisturizer
This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.
Kiehl's Ultra Facial Oil-Free Gel Cream Versus Biologique Recherche Crème Dermopurifiante Purifying Face Cream
This oil-control moisturizer is formulated around Pseudoalteromonas Ferment Extract and Sarcosine to balance excess oil.
This oil-control moisturizer is formulated around Niacinamide to balance excess oil and clear breakouts.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Propanediol
Dimethicone
Isononyl Isononanoate
Hydroxyethylpiperazine Ethane Sulfonic Acid
Phenoxyethanol
Carbomer
Butylene Glycol
Chlorphenesin
Caprylyl Glycol
Dimethiconol
Sodium Hydroxide
Xanthan Gum
Pentylene Glycol
Tetrasodium EDTA
Tocopheryl Acetate
Menthoxypropanediol
Pseudoalteromonas Ferment Extract
Biosaccharide Gum-1
Sarcosine
Salicylic Acid
Water, Glycerin, Propanediol, Dimethicone, Isononyl Isononanoate, Hydroxyethylpiperazine Ethane Sulfonic Acid, Phenoxyethanol, Carbomer, Butylene Glycol, Chlorphenesin, Caprylyl Glycol, Dimethiconol, Sodium Hydroxide, Xanthan Gum, Pentylene Glycol, Tetrasodium EDTA, Tocopheryl Acetate, Menthoxypropanediol, Pseudoalteromonas Ferment Extract, Biosaccharide Gum-1, Sarcosine, Salicylic Acid
Propylene Glycol
Dicaprylyl Carbonate
Sucrose Polystearate
C10-18 Triglycerides
Cetyl Alcohol
1,2-Hexanediol
Niacinamide
Polyamide-5
Arctium Lappa Root Extract
Betula Alba Bark Extract
Enantia Chlorantha Bark Extract
Equisetum Arvense Extract
Mimosa Tenuiflora Bark Extract
Hedera Helix Leaf/Stem Extract
Fucus Vesiculosus Extract
Centella Asiatica Extract
Spiraea Ulmaria Extract
Arnica Montana Flower Extract
Rosa Canina Fruit Extract
Achillea Millefolium Extract
Aesculus Hippocastanum Seed Extract
Lavandula Angustifolia Flower Extract
Thymus Vulgaris Flower/Leaf Extract
Myrtus Communis Extract
Allium Cepa Bulb Extract
Commiphora Myrrha Resin Extract
Oleanolic Acid
Glycine Soja Oil
Yeast Extract
Citric Acid
Tocopherol
Sodium Stearoyl Glutamate
Hydrogenated Polyisobutene
Polyacrylate Crosspolymer-6
T-Butyl Alcohol
Sodium Benzoate
Potassium Sorbate
Sorbic Acid
Water, Propylene Glycol, Glycerin, Dicaprylyl Carbonate, Butylene Glycol, Sucrose Polystearate, C10-18 Triglycerides, Cetyl Alcohol, 1,2-Hexanediol, Niacinamide, Polyamide-5, Arctium Lappa Root Extract, Betula Alba Bark Extract, Enantia Chlorantha Bark Extract, Equisetum Arvense Extract, Mimosa Tenuiflora Bark Extract, Hedera Helix Leaf/Stem Extract, Fucus Vesiculosus Extract, Centella Asiatica Extract, Spiraea Ulmaria Extract, Arnica Montana Flower Extract, Rosa Canina Fruit Extract, Achillea Millefolium Extract, Aesculus Hippocastanum Seed Extract, Lavandula Angustifolia Flower Extract, Thymus Vulgaris Flower/Leaf Extract, Myrtus Communis Extract, Allium Cepa Bulb Extract, Commiphora Myrrha Resin Extract, Oleanolic Acid, Glycine Soja Oil, Yeast Extract, Citric Acid, Tocopherol, Sodium Stearoyl Glutamate, Hydrogenated Polyisobutene, Polyacrylate Crosspolymer-6, T-Butyl Alcohol, Caprylyl Glycol, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Sorbic Acid
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!