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La Roche-Posay Toleriane Double Repair Face Moisturizer Versus PCA Skin C & E Advanced

La Roche-Posay Toleriane Double Repair Face Moisturizer Versus PCA Skin C & E Advanced This barrier-repair moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and hydrate skin. This anti-aging serum is formulated around Asc

By Peptide Skincare & Beauty Editorial TeamPublished

La Roche-Posay Toleriane Double Repair Face Moisturizer Versus PCA Skin C & E Advanced

This barrier-repair moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and hydrate skin.

This anti-aging serum is formulated around Ascorbic Acid and Tocopherol to soften the look of wrinkles and fade the look of dark spots.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Squalane

Dimethicone

Zea Mays Starch

Niacinamide

Ammonium Polyacryloyldimethyl Taurate

Myristyl Myristate

Stearic Acid

Ceramide NP

Potassium Cetyl Phosphate

Glyceryl Stearate Se

Sodium Hydroxide

Myristic Acid

Palmitic Acid

Capryloyl Glycine

Caprylyl Glycol

Xanthan Gum

Water, Glycerin, Squalane, Dimethicone, Zea Mays Starch, Niacinamide, Ammonium Polyacryloyldimethyl Taurate, Myristyl Myristate, Stearic Acid, Ceramide NP, Potassium Cetyl Phosphate, Glyceryl Stearate Se, Sodium Hydroxide, Myristic Acid, Palmitic Acid, Capryloyl Glycine, Caprylyl Glycol, Xanthan Gum

Cyclopentasiloxane

Ascorbic Acid

Ethylhexyl Hydroxystearate

Polysilicone-11

Tocopherol

Isosorbide Dicaprylate

Polymethylsilsesquioxane

Hexylresorcinol

Silybum Marianum Fruit Extract

Hordeum Distichon Extract

Citrus Aurantium Dulcis Oil

Silica

Phellodendron Amurense Bark Extract

Santalum Album Wood Extract

Cyclopentasiloxane, Ascorbic Acid, Ethylhexyl Hydroxystearate, Polysilicone-11, Tocopherol, Isosorbide Dicaprylate, Polymethylsilsesquioxane, Hexylresorcinol, Silybum Marianum Fruit Extract, Hordeum Distichon Extract, Citrus Aurantium Dulcis Oil, Silica, Phellodendron Amurense Bark Extract, Santalum Album Wood Extract

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The reference edit

Ingredients, questions
& further reading.

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

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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. 03Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.
  4. 04Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.
  5. 05In practice, that translates to a long shelf life and a consistently elegant skin feel.
  6. 06While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.
  7. 07Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.
  8. 08This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.
  9. 09This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures…
  10. 10Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  11. 11Topically, glycerin does several things at once:
  12. 12Your 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.
  13. 13Aquaporin-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.
  14. 14This 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.
  15. 15Just know very high concentrations (>40%) can feel tacky in low humidity.
  16. 16Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  17. 17Triethyl Citrate comes from citric acid. It has masking, perfuming, and solvent properties. As a solvent, this ingredient helps disperse ingredients evenly in skincare.
  18. 18One manufacturer claims this ingredient can:
  19. 19According to perfume manufacturers, this ingredient is almost odorless but has a mild fruity, wine and plum scent. It can be used to mask the scent of other ingredients.
  20. 20This ingredient can be plant-sourced or synthetic; it can naturally be found in cabbage and white wine.
Source · skinsort.com ⟶
02

Product index

Related product references

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PCA Skin Hyaluronic Acid Lip Booster PCA Skin Hyaluronic Acid Lip Booster ingredients explained: Hydrogenated Polyisobutene, Ethylene/Propylene/Styrene Copolymer, Beeswax, Ethylhexyl Palmit…

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PCA Skin Hydrating Toner

PCA Skin Hydrating Toner PCA Skin Hydrating Toner ingredients explained: Water/Aqua/Eau, Glycerin, Pyrus Malus (Apple) Fruit Extract, Phenoxyethanol, Polysorbate 20, Propanediol, Citrullus …

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03

Comparison edit

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