Dot & Key Skincare 72 HR Hydrating Gel Moisturizer + Probiotics Versus First Aid Beauty Ultra Repair Oil-Control Moisturizer

Dot & Key Skincare 72 HR Hydrating Gel Moisturizer + Probiotics Versus First Aid Beauty Ultra Repair Oil-Control Moisturizer

This barrier-repair moisturizer is formulated around Hyaluronic Acid and Saccharide Isomerate to strengthen the skin barrier and hydrate skin.

This oil-control moisturizer is formulated around Niacinamide and Avena Sativa Kernel Extract to balance excess oil and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Cyclopentasiloxane

Dimethicone Crosspolymer

Glycerin

Polyacrylamide

C13-14 Isoparaffin

Laureth-7

Silanetriol

Hyaluronic Acid

Divinyldimethicone/Dimethicone Copolymer

C12-13 Pareth-23

C12-13 Pareth-3

Dimethylsilanol Hyaluronate

Saccharide Isomerate

Oryza Sativa Bran Water

Saccharomyces/Xylinum/Black Tea Ferment

Avena Sativa Meal Extract

Pyrus Malus Fruit Extract

Lactobacillus

Maltodextrin

Sodium Hydroxide

Methylsilanol Mannuronate

Phenoxyethanol

Methylisothiazolinone

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Disodium EDTA

CI 42090

Water, Cyclopentasiloxane, Dimethicone Crosspolymer, Glycerin, Polyacrylamide, C13-14 Isoparaffin, Laureth-7, Silanetriol, Hyaluronic Acid, Divinyldimethicone/Dimethicone Copolymer, C12-13 Pareth-23, C12-13 Pareth-3, Dimethylsilanol Hyaluronate, Saccharide Isomerate, Oryza Sativa Bran Water, Saccharomyces/Xylinum/Black Tea Ferment, Avena Sativa Meal Extract, Pyrus Malus Fruit Extract, Lactobacillus, Maltodextrin, Sodium Hydroxide, Methylsilanol Mannuronate, Phenoxyethanol, Methylisothiazolinone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Disodium EDTA, CI 42090

Dimethicone

Propanediol

Butylene Glycol

Niacinamide

Nylon-12

Acrylates Crosspolymer

Sodium Hyaluronate

Enantia Chlorantha Bark Extract

Avena Sativa Kernel Extract

Camellia Sinensis Leaf Extract

Chrysanthemum Parthenium Extract

Oleanolic Acid

Sorbitan Isostearate

Caprylyl Glycol

Glyceryl Stearate Citrate

Hydrogenated Polydecene

2-Hydroxyethyl Acrylate

1,2-Hexanediol

Lecithin

Polysilicone-11

Polysorbate 60

Sodium Caprylate

Sodium Acrylates Copolymer

Laureth-8

Citric Acid

Potassium Sorbate

Sodium Benzoate

Water, Dimethicone, Propanediol, Butylene Glycol, Niacinamide, Nylon-12, Acrylates Crosspolymer, Sodium Hyaluronate, Enantia Chlorantha Bark Extract, Avena Sativa Kernel Extract, Camellia Sinensis Leaf Extract, Chrysanthemum Parthenium Extract, Glycerin, Oleanolic Acid, Sorbitan Isostearate, Caprylyl Glycol, Glyceryl Stearate Citrate, Hydrogenated Polydecene, 2-Hydroxyethyl Acrylate, 1,2-Hexanediol, Lecithin, Polysilicone-11, Polysorbate 60, Sodium Caprylate, Sodium Acrylates Copolymer, Laureth-8, Citric Acid, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate

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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.

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!

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