Biologique Recherche Collagène Marin Moisturizing and Firming Serum for the Face Versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.)

Biologique Recherche Collagène Marin Moisturizing and Firming Serum for the Face Versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.)

This hydrating serum is formulated around Dipotassium Glycyrrhizate and Sodium Hyaluronate to hydrate skin and soften the look of wrinkles.

What's inside

Key Ingredients

No key ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

Water

Hydrolyzed Collagen

Phenoxyethanol

Ethylhexylglycerin

Water, Hydrolyzed Collagen, Phenoxyethanol, Ethylhexylglycerin

Cyclohexasiloxane

Glycerin

Alcohol Denat.

Hydroxypropyl Tetrahydropyrantriol

Propylene Glycol

Dipotassium Glycyrrhizate

Polysilicone-11

Polymethylsilsesquioxane

Sodium Hyaluronate

Dimethicone

Tocopherol

Capryloyl Salicylic Acid

Octyldodecanol

Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone

PEG-20 Methyl Glucose Sesquistearate

Ammonium Polyacryloyldimethyl Taurate

Caprylyl Glycol

Xanthan Gum

Dextrin

Oryza Sativa Extract

Disodium EDTA

Caprylic/Capric Triglyceride

Sodium Hydroxide

Adenosine

Citrus Nobilis Peel Oil

Limonene

T-Butyl Alcohol

Cellulose Acetate Butyrate

Polyphosphorylcholine Glycol Acrylate

Polyvinyl Alcohol

Sodium Chloride

Butylene Glycol

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Water, Cyclohexasiloxane, Glycerin, Alcohol Denat., Hydroxypropyl Tetrahydropyrantriol, Propylene Glycol, Dipotassium Glycyrrhizate, Polysilicone-11, Polymethylsilsesquioxane, Sodium Hyaluronate, Dimethicone, Tocopherol, Phenoxyethanol, Capryloyl Salicylic Acid, Octyldodecanol, Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, PEG-20 Methyl Glucose Sesquistearate, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Xanthan Gum, Dextrin, Oryza Sativa Extract, Disodium EDTA, Caprylic/Capric Triglyceride, Sodium Hydroxide, Adenosine, Citrus Nobilis Peel Oil, Limonene, T-Butyl Alcohol, Cellulose Acetate Butyrate, Polyphosphorylcholine Glycol Acrylate, Polyvinyl Alcohol, Sodium Chloride, Butylene Glycol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

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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.

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!

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