Skin science article
The Outset Restorative Niacinamide Night Cream Versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment
The Outset Restorative Niacinamide Night Cream Versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment This barrier-repair night moisturizer is formulated around Niacinamide and Bakuchiol to strengthen the skin barrier. This anti-aging treatment i
The Outset Restorative Niacinamide Night Cream Versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment
This barrier-repair night moisturizer is formulated around Niacinamide and Bakuchiol to strengthen the skin barrier.
This anti-aging treatment is formulated around Bakuchiol and Tetrahexyldecyl Ascorbate to soften the look of wrinkles and refine skin texture.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Caprylic/Capric Triglyceride
Cetyl Palmitate
Propanediol
Hydrogenated Sunflower Seed Oil Polyglyceryl-3 Esters
Glycerin
Helianthus Annuus Seed Oil
Myristyl Myristate
Dicaprylyl Carbonate
Hydrogenated Ethylhexyl Olivate
Hydrogenated Sunflower Seed Oil Glyceryl Esters
Oenothera Biennis Oil
Pentylene Glycol
Vitis Vinifera Seed Oil
Hydrogenated Vegetable Oil
Persea Gratissima Oil
Niacinamide
Cassia Angustifolia Seed Polysaccharide
Bakuchiol
Chamomilla Recutita Flower Extract
Citrus Aurantium Dulcis Fruit Extract
Citrus Limon Fruit Extract
Saccharum Officinarum Extract
Acer Saccharum Extract
Vaccinium Myrtillus Fruit/Leaf Extract
Glycyrrhiza Glabra Root Extract
Glycine Soja Oil
Hydrogenated Olive Oil Unsaponifiables
Hydrolyzed Jojoba Esters
Jojoba Esters
Sodium Hyaluronate
Phenoxyethanol
Cetearyl Alcohol
Microcrystalline Cellulose
Capryloyl Glycerin/Sebacic Acid Copolymer
Sodium Stearoyl Lactylate
Acacia Senegal Gum
Diheptyl Succinate
Xanthan Gum
Cellulose Gum
Saccharide Isomerate
Panthenol
Caprylyl Glycol
Tocopherol
Tocopheryl Acetate
Dextran
Trifluoroacetyl Tripeptide-2
Citric Acid
Sodium Citrate
Sodium Phytate
Water, Caprylic/Capric Triglyceride, Cetyl Palmitate, Propanediol, Hydrogenated Sunflower Seed Oil Polyglyceryl-3 Esters, Glycerin, Helianthus Annuus Seed Oil, Myristyl Myristate, Dicaprylyl Carbonate, Hydrogenated Ethylhexyl Olivate, Hydrogenated Sunflower Seed Oil Glyceryl Esters, Oenothera Biennis Oil, Pentylene Glycol, Vitis Vinifera Seed Oil, Hydrogenated Vegetable Oil, Persea Gratissima Oil, Niacinamide, Cassia Angustifolia Seed Polysaccharide, Bakuchiol, Chamomilla Recutita Flower Extract, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Saccharum Officinarum Extract, Acer Saccharum Extract, Vaccinium Myrtillus Fruit/Leaf Extract, Glycyrrhiza Glabra Root Extract, Glycine Soja Oil, Hydrogenated Olive Oil Unsaponifiables, Hydrolyzed Jojoba Esters, Jojoba Esters, Sodium Hyaluronate, Phenoxyethanol, Cetearyl Alcohol, Microcrystalline Cellulose, Capryloyl Glycerin/Sebacic Acid Copolymer, Sodium Stearoyl Lactylate, Acacia Senegal Gum, Diheptyl Succinate, Xanthan Gum, Cellulose Gum, Saccharide Isomerate, Panthenol, Caprylyl Glycol, Tocopherol, Tocopheryl Acetate, Dextran, Trifluoroacetyl Tripeptide-2, Citric Acid, Sodium Citrate, Sodium Phytate
Dimethicone
Pentaerythrityl Tetraisostearate
Isononyl Isononanoate
Butylene Glycol
Arachidyl Alcohol
Glyceryl Polymethacrylate
Dimethicone Crosspolymer
Behenyl Alcohol
PEG-75 Shea Butter Glycerides
Glyceryl Stearate
C12-15 Alkyl Benzoate
Polysorbate 20
Tetrahexyldecyl Ascorbate
Retinol
Ceramide Ng
Palmitoyl Tetrapeptide-7
Palmitoyl Hexapeptide-12
Dipotassium Glycyrrhizate
Avena Sativa Kernel Extract
Arctium Lappa Root Extract
Salix Alba Bark Extract
Glycine Soja Sterols
Lecithin
Allantoin
Hydrolyzed Soy Protein
Palmitoyl Tripeptide-1
Sodium Hydroxide
Tribehenin
Dipeptide-2
Polygonum Cuspidatum Root Extract
PEG-10 Phytosterol
PEG-8
Magnesium Aluminum Silicate
Arachidyl Glucoside
Chrysin
Sodium Acrylates Copolymer
Steareth-20
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Coco-Glucoside
Hesperidin Methyl Chalcone
N-Hydroxysuccinimide
Disodium EDTA
Benzoic Acid
Ethylhexylglycerin
Water, Dimethicone, Pentaerythrityl Tetraisostearate, Isononyl Isononanoate, Butylene Glycol, Bakuchiol, Arachidyl Alcohol, Glyceryl Polymethacrylate, Dimethicone Crosspolymer, Behenyl Alcohol, Glycerin, PEG-75 Shea Butter Glycerides, Glyceryl Stearate, C12-15 Alkyl Benzoate, Polysorbate 20, Tetrahexyldecyl Ascorbate, Retinol, Ceramide Ng, Palmitoyl Tetrapeptide-7, Palmitoyl Hexapeptide-12, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra Root Extract, Avena Sativa Kernel Extract, Arctium Lappa Root Extract, Salix Alba Bark Extract, Glycine Soja Sterols, Lecithin, Allantoin, Tocopheryl Acetate, Hydrolyzed Soy Protein, Palmitoyl Tripeptide-1, Sodium Hydroxide, Tribehenin, Caprylyl Glycol, Dipeptide-2, Polygonum Cuspidatum Root Extract, PEG-10 Phytosterol, PEG-8, Magnesium Aluminum Silicate, Arachidyl Glucoside, Chrysin, Pentylene Glycol, Sodium Acrylates Copolymer, Steareth-20, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, Coco-Glucoside, Hesperidin Methyl Chalcone, N-Hydroxysuccinimide, Disodium EDTA, Phenoxyethanol, Benzoic Acid, Ethylhexylglycerin
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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.
Bakuchiol is a plant-derived antioxidant from the seeds of the Psoralea corylifolia plant. It has antimicrobial, emollient, skin conditioning, and antioxidant properties.
You'll likely see it called a "retinol replacement" but the two are technically not related. This is because bakuchiol is able to flip many of the same switches in your skin cells to tell them to:
1) produce more collagen (type I, III, and IV) 2) activate the same genes retinoids do
Unlike retinoids, this ingredient will not increase photosensitivity and is safe to use during pregnancy (but please still check in with your doctor!).
The flagship clinical trial from Dhaliwal et al. 2019 found 0.5% bakuchiol (twice daily) and 0.5% retinol (once daily) reduced wrinkles and hyperpigmentation equally, but bakuchiol had significantly less irritation.
Systematic reviews also back this up:
Bakuchiol is comparable to retinol for photoaging but with better tolerability. It also has mild antibacterial properties against Cutibacterium acnes and antifungal activity in vitro against Candida and dermatophytes.
The reason bakuchiol works well is due to its structure; it is a meroterpene phenol, or a hybrid molecule. The phenol half acts as an antioxidant while the terpene half is fat-loving. This helps the molecule slip through the skin barrier.
This ingredient is usually used between 0.5-2%. Only one case of contact dermatitis has ever been reported for this ingredient.
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).
Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier.
Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient.
It plays several roles in a formula:
Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products.
Multiple assessments have found it to be non-irritating and non-sensitizing to most people.
However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers.
Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy.
Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans.
Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients.
This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize.
A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe.
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.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
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.
Tocopheryl Acetate is a stable, shelf-friendly form of vitamin E.
Formulators love it because plain vitamin E oxidizes quickly once it hits air. This acetate version stays stable and resists going off, helping to extend a product's shelf life.
It's actually inactive on its own and works like a slow-release "storage" form; the enzymes in your skin called esterases gradually convert it into active vitamin E over time.
One in vivo study showed 5% of the acetate in the living layer of the epidermis converted to vitamin E after 5 days of application. This study also found the skin gained protection against UV damage even though the conversion was slow and small.
Once converted, vitamin E acts as a skin's main fat-soluble antioxidant that fights free radicals to protect skin from damage.
Topical vitamin E generally boosts the skin's photoprotection, and it reduced UV-damage in animal models.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
Overall, it has a pretty solid safety profile and has been found to be non-irritating and non-comedogenic. Allergic reactions may happen but stay rare due to how widely the ingredient gets used.
The concentration will vary depending on the formula; industry data shows 0.1% in baby lotions, 3% in lipsticks, and 5% in foot powders. You can also find this ingredient at 100% in a pure vitamin E oil.
Most leave-on skincare keeps it at the lower end, often between 0.5-1%.
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!