Boots Ingredients Collagen Booster Versus Garnier Hyaluronic Aloe Replumping Super Serum

Boots Ingredients Collagen Booster Versus Garnier Hyaluronic Aloe Replumping Super Serum

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 Aloe Barbadensis Leaf Juice Powder and Sodium Hyaluronate to hydrate skin and calm redness.

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

Pentylene Glycol

PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin

Methyl Gluceth-20

Aloe Barbadensis Leaf Juice Powder

PEG-60 Hydrogenated Castor Oil

Biosaccharide Gum-1

Maltodextrin

Parfum

Water, Pentylene Glycol, Glycerin, PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin, Methyl Gluceth-20, Butylene Glycol, Aloe Barbadensis Leaf Juice Powder, PEG-60 Hydrogenated Castor Oil, Carbomer, Sodium Hyaluronate, Sodium Hydroxide, Caprylyl Glycol, Biosaccharide Gum-1, Maltodextrin, Parfum

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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).

Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.

Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.

It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.

Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.

A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.

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.

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!

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