First Aid Beauty Hydrating Serum With Hyaluronic Acid Versus First Aid Beauty Bounce-Boosting Serum with Collagen + Peptides

First Aid Beauty Hydrating Serum With Hyaluronic Acid Versus First Aid Beauty Bounce-Boosting Serum with Collagen + Peptides

This hydrating serum is formulated around Sodium Hyaluronate and Colloidal Oatmeal to hydrate skin and calm redness.

This anti-aging serum is formulated around Bakuchiol to soften the look of wrinkles.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Glycereth-26

Squalane

Sodium Hyaluronate

Soluble Collagen

Colloidal Oatmeal

Panthenol

Chrysanthemum Parthenium Extract

Camellia Sinensis Leaf Extract

Glycyrrhiza Glabra Root Extract

Allantoin

Ethylhexylglycerin

Sorbitan Oleate

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Sodium PCA

Phenoxyethanol

Sodium Hydroxide

Potassium Sorbate

Sodium Benzoate

Tetrasodium EDTA

Water, Glycerin, Glycereth-26, Squalane, Sodium Hyaluronate, Soluble Collagen, Colloidal Oatmeal, Panthenol, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Allantoin, Ethylhexylglycerin, Sorbitan Oleate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium PCA, Phenoxyethanol, Sodium Hydroxide, Potassium Sorbate, Sodium Benzoate, Tetrasodium EDTA

Propanediol

Dicaprylyl Carbonate

C9-12 Alkane

Ceramide NP

Hydrolyzed Collagen

Pentapeptide-34 Trifluoroacetate

Hydrolyzed Sodium Hyaluronate

Acetyl Hydroxyproline

Bakuchiol

Chlorella Vulgaris Extract

Tocopherol

Coco-Caprylate/Caprate

Glycine

Histidine

Hydrolyzed Corn Protein

Alanine

Sorbitan Olivate

Isoleucine

Leucine

Lysine

Phenylalanine

Proline

Serine

Arginine

Cetearyl Olivate

Threonine

Tyrosine

Valine

Aspartic Acid

Butylene Glycol

Carbomer

Cetearyl Alcohol

Glutamic Acid

Glyceryl Acrylate/Acrylic Acid Copolymer

Xanthan Gum

Water, Propanediol, Dicaprylyl Carbonate, Glycerin, C9-12 Alkane, Soluble Collagen, Ceramide NP, Hydrolyzed Collagen, Pentapeptide-34 Trifluoroacetate, Hydrolyzed Sodium Hyaluronate, Acetyl Hydroxyproline, Sodium Hyaluronate, Bakuchiol, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Chlorella Vulgaris Extract, Tocopherol, Coco-Caprylate/Caprate, Glycine, Histidine, Hydrolyzed Corn Protein, Alanine, Sorbitan Olivate, Isoleucine, Leucine, Lysine, Phenylalanine, Proline, Serine, Arginine, Cetearyl Olivate, Threonine, Tyrosine, Valine, Aspartic Acid, Butylene Glycol, Carbomer, Cetearyl Alcohol, Glutamic Acid, Glyceryl Acrylate/Acrylic Acid Copolymer, Xanthan Gum, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Sodium Hydroxide, Tetrasodium EDTA

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Camellia Sinensis Leaf Extract (tea extract) is one of the most well-researched plant extracts in skincare with an impressive resume.

Black tea, green tea, and oolong tea are all harvested from the Camellia Sinensis plant.

Studies show green tea extract and its catechins (like epigallocatechin gallate (EGCG)) help your skin cells product energy more efficiently and reducing the number of free-radicals that can damage your skin from the inside.

In lab-grown skin models, this translated to younger, healthier, and stronger skin.

There's also good sun protection data; researchers saw less DNA damage and redness on human skin when green tea was applied before UVB exposure. And the more they applied, the better the protection.

Needless to say, this ingredient shouldn't replace your sunscreen. But it is a great supportive ingredient that you can already find in many sunscreens and antioxidant serums.

A 2009 study found a 2% green tea lotion was effective for mild-to-moderate acne thanks to its anti-inflammatory and mild antimicrobial activity.

The quality of the extract matters a lot here:

Good extracts contain 50-90% catechins while lower quality ones are mostly there for marketing. We recommend reaching out to the brand if you have questions about the quality or source of their ingredients.

Human Repeated Insult Patch Testing showed no irritation or sensitization at use concentrations (0.86% in leave-on products and up to 30% as leaf water).

We don't have a description for Chrysanthemum Parthenium Extract yet.

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.

Glycyrrhiza Glabra Root Extract is an extract of the roots of Licorice. It has been found to have several benefits such as skin hydrating, conditioning, and soothing.

One component, glabridin, has extra potent antioxidant and soothing properties. It has also been found to block pigmentation from UVB rays in guinea pigs.

Licorice Root also contains a flavonoid. Flavonoids are a natural substance from in plants. Flavonoids also have antioxidant properties.

Another component, glycyrrhizin, has been found to have anti-inflammatory and antimicrobial benefits. This may make licorice root extract effective at treating acne. However, more research is needed to support this.

Liquiritin is one of the flavone compounds found in licorice. It has been found to help lighten skin by preventing tyrosinase from reacting with tyrosine. When the two react, protein is converted to melanin. Melanin is the substance in your body that gives your features pigmentation.

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.

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.

You'll often find this ingredient used with other preservatives.

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

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.

Soluble collagen is a large, water-loving protein typically extracted from cattle hides or marine sources like fish skin.

In cosmetics, it works purely as a humectant and film-former.

Despite the marketing that surrounds the word "collagen", its molecule is far too large to penetrate skin so it can't rebuild the collagen in your dermis.

Instead, it sits on the surface and binds water to help reduce transepidermal water loss and leave skin feeling soft, plump, and temporarily tightened.

Suppliers commonly recommend using it around 3-6% though industry data shows concentrations are often much lower (down to a fraction of a percent).

This ingredient has been found safe to use in cosmetics with no reported irritation, sensitization, or phototoxicity.

Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.

Tetrasodium EDTA comes as a white solid and is soluble in water.

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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