L'Oreal Age Perfect Cell Renewal Day SPF 15 Cream Versus Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free)

L'Oreal Age Perfect Cell Renewal Day SPF 15 Cream Versus Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free)

This anti-aging day moisturizer is formulated around Adenosine and Capryloyl Salicylic Acid to soften the look of wrinkles.

This anti-aging moisturizer is formulated around Niacinamide and Panthenol to soften the look of wrinkles and refine skin texture.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Alcohol Denat.

Hydrogenated Polyisobutene

Bis-PEG-18 Methyl Ether Dimethyl Silane

Dimethicone

Cetearyl Alcohol

PEG-100 Stearate

PEG-20

Petrolatum

Butyrospermum Parkii Butter

C13-14 Isoparaffin

Glyceryl Stearate

Dimethiconol

Dimethyl Isosorbide

Cetearyl Glucoside

Neohesperidin Dihydrochalcone

Sodium Cocoyl Glutamate

Sodium Hyaluronate

Sodium Hydroxide

Cyclodextrin

Adenosine

Vigna Aconitifolia Seed Extract

Mannitol

Disodium EDTA

Disodium Succinate

Hydrolyzed Cicer Seed Extract

Capryloyl Salicylic Acid

Laureth-7

Yeast Extract

Xanthan Gum

Polyacrylamide

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Cetyl Alcohol

Octyldodecanol

Tocopheryl Acetate

Sodium Dehydroacetate

Phenoxyethanol

CI 14700

CI 19140

Linalool

Geraniol

Alpha-Isomethyl Ionone

Limonene

Hydroxycitronellal

Citronellol

Hexyl Cinnamal

Benzyl Alcohol

Benzyl Salicylate

Parfum

Water, Glycerin, Alcohol Denat., Hydrogenated Polyisobutene, Bis-PEG-18 Methyl Ether Dimethyl Silane, Dimethicone, Cetearyl Alcohol, PEG-100 Stearate, PEG-20, Petrolatum, Butyrospermum Parkii Butter, C13-14 Isoparaffin, Glyceryl Stearate, Dimethiconol, Dimethyl Isosorbide, Cetearyl Glucoside, Neohesperidin Dihydrochalcone, Sodium Cocoyl Glutamate, Sodium Hyaluronate, Sodium Hydroxide, Cyclodextrin, Adenosine, Vigna Aconitifolia Seed Extract, Mannitol, Disodium EDTA, Disodium Succinate, Hydrolyzed Cicer Seed Extract, Capryloyl Salicylic Acid, Laureth-7, Yeast Extract, Xanthan Gum, Polyacrylamide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetyl Alcohol, Octyldodecanol, Tocopheryl Acetate, Sodium Dehydroacetate, Phenoxyethanol, CI 14700, CI 19140, Linalool, Geraniol, Alpha-Isomethyl Ionone, Limonene, Hydroxycitronellal, Citronellol, Hexyl Cinnamal, Benzyl Alcohol, Benzyl Salicylate, Parfum

Niacinamide

Isohexadecane

Isopropyl Isostearate

Stearyl Alcohol

Panthenol

Palmitoyl Pentapeptide-4

Tremella Fuciformis Sporocarp Extract

Tapioca Starch

Caprylyl Glycol

Palmitic Acid

Stearic Acid

Behenyl Alcohol

Titanium Dioxide

Polymethylsilsesquioxane

1,2-Hexanediol

Water, Glycerin, Niacinamide, Isohexadecane, Dimethicone, Isopropyl Isostearate, Stearyl Alcohol, Polyacrylamide, Panthenol, Palmitoyl Pentapeptide-4, Tremella Fuciformis Sporocarp Extract, Tapioca Starch, C13-14 Isoparaffin, Caprylyl Glycol, Dimethiconol, Laureth-7, Cetearyl Alcohol, Cetearyl Glucoside, Palmitic Acid, Stearic Acid, Cetyl Alcohol, Behenyl Alcohol, Disodium EDTA, PEG-100 Stearate, Titanium Dioxide, Polymethylsilsesquioxane, 1,2-Hexanediol, Phenoxyethanol

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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.

C13-14 Isoparaffin is a synthetic emollient, solvent, and thickening agent. It helps soften skin and improves spreadability without leaving a greasy residue.

This ingredient has been found to be non-sensitizing and safe for use in cosmetics.

Two things floating around online that cause fear-mongering:

There's one scary-sounding study related to kidney tumors in male rats; this depends on a protein called alpha-2u-globulin that binds the ingredient and clogs up kidney cells. Female rats barely make this protein, and humans don't make it at all so this effect cannot happen to us. Regulatory bodies have states this rat-only pathway shouldn't be used to judge human risk.

The other thing you'll see is 1,4-dioxane being a trace byproduct that can form during manufacturing of petroleum-derived ingredients. This is a real, but heavily managed/monitored issue. This byproduct is removed through purification steps before the ingredients goes into the formula. Regulatory bodies also actively monitor residual levels for safety.

One last thing to note: this ingredient is a pure hydrocarbon with no fatty-acid or ester chains for Malassezia to feed on, so it's considered fungal acne safe.

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.

Cetearyl Glucoside is a sugar-based emulsifier. It is usually made by combining cetearyl alcohol and glucose.

Belonging to the aklyl polyglucoside (APG) family, Cetearyl Glucoside has a sugar "head" that loves water and a fatty "tail" that loves oil. This means it can shuffle oil and water into a stable and smooth emulsion.

Typical use levels are between 1-5% and this ingredient is considered to be non-irritating by the CIR Expert Panel Review.

Once applied, your skin's glucoside hydrolases breaks it down to the parent fatty alcohol and glucose. This is why this ingredient may not be fungal acne safe.

Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.

Its main roles are:

Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol.

The FDA allows products labeled "alcohol-free" to have fatty alcohols.

This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it.

Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.

What it does:

Dimethicone comes in different viscosities:

Depending on the viscosity, dimethicone has different properties.

Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.

This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.

Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.

Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.

This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.

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.

Laureth-7 is created by the ethoxylation of lauryl alcohol using ethylene oxide. Lauryl alcohol is a fatty alcohol with hydrating properties.

This ingredient is an emulsifier and cleansing ingredient. As an emulsifier, it is used to prevent ingredients from separating. It also helps cleanse the skin by gathering dirt, oil, and pollutants to be rinsed away.

Peg-100 Stearate is an emollient and emulsifier. As an emollient, it helps keep skin soft by trapping moisture in. On the other hand, emulsifiers help prevent oil and water from separating in a product.

PEGS are a hydrophilic polyether compound . There are 100 ethylene oxide monomers in Peg-100 Stearate. Peg-100 Stearate is polyethylene glycol ester of stearic acid.

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.

Polyacrylamide is a synthetic polymer. It is used to stabilize products and bind ingredients. When hydrated, Polyacrylamide forms a soft gel.

Polyacrylamide is low-toxicity. If source properly, it is deemed safe to use in cosmetics.

It should be noted the precursor to Polyacrylamide is acrylamide. Acrylamide is a carcinogen. Most reputable sources of Polyacrylamide will screen for residual acrylamide to make sure the count is in a safe range. Acrylamide is not able to be absorbed through the skin.

We recommend speaking with a professional if you have concerns.

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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