Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Olay Regenerist Hyaluronic + Peptide 24 Face Moisturizer SPF 30 Versus Olay Complete All Day Moisturizer Sensitive Skin SPF 15

Olay Regenerist Hyaluronic + Peptide 24 Face Moisturizer SPF 30 Versus Olay Complete All Day Moisturizer Sensitive Skin SPF 15 This anti-aging day moisturizer is formulated around Niacinamide and Sodium Hyaluronate to soften the look of wrinkles and hydrate sk

Olay Regenerist Hyaluronic + Peptide 24 Face Moisturizer SPF 30 Versus Olay Complete All Day Moisturizer Sensitive Skin SPF 15

This anti-aging day moisturizer is formulated around Niacinamide and Sodium Hyaluronate to soften the look of wrinkles and hydrate skin.

This calming day moisturizer is formulated around Aloe Barbadensis Leaf Extract and Tocopheryl Acetate to calm redness and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Zea Mays Starch

Niacinamide

Sodium Hyaluronate

Palmitoyl Pentapeptide-4

Panthenol

Dimethicone

Cetearyl Glucoside

Cetearyl Alcohol

Stearic Acid

Palmitic Acid

Stearyl Alcohol

Cetyl Alcohol

Behenyl Alcohol

Disodium EDTA

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

PEG-100 Stearate

1,2-Hexanediol

Phenoxyethanol

Hyaluronic Acid

Avena Sativa Peptide

Water, Glycerin, Zea Mays Starch, Niacinamide, Sodium Hyaluronate, Palmitoyl Pentapeptide-4, Panthenol, Dimethicone, Cetearyl Glucoside, Cetearyl Alcohol, Stearic Acid, Palmitic Acid, Stearyl Alcohol, Cetyl Alcohol, Behenyl Alcohol, Disodium EDTA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, PEG-100 Stearate, 1,2-Hexanediol, Phenoxyethanol, Hyaluronic Acid, Avena Sativa Peptide

Ethylhexyl Methoxycinnamate 6%

Zinc Oxide

Isohexadecane

Aloe Barbadensis Leaf Extract

Tocopheryl Acetate

Steareth-21

Cyclopentasiloxane

Polyacrylamide

C13-14 Isoparaffin

DMDM Hydantoin

PEG/PPG-20/20 Dimethicone

Laureth-7

Steareth-2

Triethoxycaprylylsilane

Oleth-3 Phosphate

BHT

Iodopropynyl Butylcarbamate

Ethylhexyl Methoxycinnamate 6%, Zinc Oxide, Water, Glycerin, Isohexadecane, Aloe Barbadensis Leaf Extract, Tocopheryl Acetate, Steareth-21, Cyclopentasiloxane, Polyacrylamide, Stearyl Alcohol, C13-14 Isoparaffin, Behenyl Alcohol, DMDM Hydantoin, Cetyl Alcohol, PEG/PPG-20/20 Dimethicone, Laureth-7, Steareth-2, Disodium EDTA, Triethoxycaprylylsilane, Oleth-3 Phosphate, BHT, Iodopropynyl Butylcarbamate

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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.

Behenyl Alcohol is a type of fatty alcohol (these are different from the drying, solvent alcohols).

Fatty Alcohols have hydrating properties and are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils; behenyl alcohol is derived from the fats of vegetable oils.

Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.

In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.

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.

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.

Stearyl Alcohol is a type of fatty alcohol from stearic acid. It is a white, waxy compound used to emulsify ingredients used as an emollient or to thicken a product.

Emollients help soothe and hydrate the skin by trapping moisture.

Fatty alcohols are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as solvent (ethanol) alcohols.

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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The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 03Behenyl Alcohol is a type of fatty alcohol (these are different from the drying, solvent alcohols).
  4. 04Fatty Alcohols have hydrating properties and are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils; behenyl alcohol is derived from the fats of vegetable oils.
  5. 05Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.
  6. 06In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.
  7. 07Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
  8. 08Its main roles are:
  9. 09Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol.
  10. 10The FDA allows products labeled "alcohol-free" to have fatty alcohols.
  11. 11This 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.
  12. 12Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
  13. 13This ingredient mainly works behind the scenes and helps with:
  14. 14On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
  15. 15One 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 st…
  16. 16Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
  17. 17You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
  18. 18Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  19. 19Topically, glycerin does several things at once:
  20. 20Your 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.
Source · skinsort.com
02

Product index

Related product references

03

Comparison edit

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