Boots Ingredients Collagen Booster Versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.)

Boots Ingredients Collagen Booster Versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.)

This anti-aging serum is formulated around Sodium Hyaluronate and Fucus Vesiculosus Extract to soften the look of wrinkles and hydrate skin.

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

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Butylene Glycol

Xanthan Gum

Phenoxyethanol

Carbomer

Methylparaben

Fucus Vesiculosus Extract

Sodium Hyaluronate

PEG-40 Hydrogenated Castor Oil

Ethylhexylglycerin

Chlorphenesin

Sodium Hydroxide

Hexylene Glycol

Disodium EDTA

Caprylyl Glycol

Tocopheryl Acetate

Acacia Seyal Gum Extract

Citric Acid

Denatonium Benzoate

Potassium Sorbate

Water, Glycerin, Butylene Glycol, Xanthan Gum, Phenoxyethanol, Carbomer, Methylparaben, Fucus Vesiculosus Extract, Sodium Hyaluronate, PEG-40 Hydrogenated Castor Oil, Ethylhexylglycerin, Chlorphenesin, Sodium Hydroxide, Hexylene Glycol, Disodium EDTA, Caprylyl Glycol, Tocopheryl Acetate, Acacia Seyal Gum Extract, Citric Acid, Denatonium Benzoate, Potassium Sorbate

Cyclohexasiloxane

Alcohol Denat.

Hydroxypropyl Tetrahydropyrantriol

Propylene Glycol

Dipotassium Glycyrrhizate

Polysilicone-11

Polymethylsilsesquioxane

Dimethicone

Tocopherol

Capryloyl Salicylic Acid

Octyldodecanol

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

PEG-20 Methyl Glucose Sesquistearate

Ammonium Polyacryloyldimethyl Taurate

Dextrin

Oryza Sativa Extract

Caprylic/Capric Triglyceride

Adenosine

Citrus Nobilis Peel Oil

Limonene

T-Butyl Alcohol

Cellulose Acetate Butyrate

Polyphosphorylcholine Glycol Acrylate

Polyvinyl Alcohol

Sodium Chloride

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.

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).

Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.

This ingredient mainly works behind the scenes and helps with:

On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.

One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).

Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.

You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.

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.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

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