Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

L'Oreal Revitalift Laser X3 Diurno Versus Vichy Liftactiv Peptide-C Ampoule Serum

L'Oreal Revitalift Laser X3 Diurno Versus Vichy Liftactiv Peptide-C Ampoule Serum This anti-aging day moisturizer is formulated around Adenosine and Hydrolyzed Hyaluronic Acid to soften the look of wrinkles. This anti-aging ampoule is formulated around Ascorbi

L'Oreal Revitalift Laser X3 Diurno Versus Vichy Liftactiv Peptide-C Ampoule Serum

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

This anti-aging ampoule is formulated around Ascorbic Acid to soften the look of wrinkles and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Isohexadecane

Hydroxypropyl Tetrahydropyrantriol

Dimethicone

Isopropyl Isostearate

Aluminum Starch Octenylsuccinate

Propylene Glycol

Nylon-12

Octyldodecanol

Cetyl Alcohol

Behenyl Alcohol

Ammonium Polyacryloyldimethyl Taurate

C13-14 Isoparaffin

PEG-100 Stearate

Stearic Acid

Stearyl Alcohol

Triethanolamine

Cetearyl Alcohol

Cetearyl Glucoside

Myristic Acid

Myristyl Alcohol

Palmitic Acid

Adenosine

Disodium EDTA

Disodium Stearoyl Glutamate

Hydrolyzed Hyaluronic Acid

Capryloyl Salicylic Acid

Laureth-7

T-Butyl Alcohol

Polyacrylamide

Polyethylene

Methylparaben

Phenoxyethanol

CI 15985

CI 19140

Linalool

Isoeugenol

Limonene

Citronellol

Benzyl Alcohol

Parfum

Water, Glycerin, Isohexadecane, Hydroxypropyl Tetrahydropyrantriol, Dimethicone, Isopropyl Isostearate, Aluminum Starch Octenylsuccinate, Propylene Glycol, Nylon-12, Octyldodecanol, Cetyl Alcohol, Behenyl Alcohol, Ammonium Polyacryloyldimethyl Taurate, C13-14 Isoparaffin, PEG-100 Stearate, Stearic Acid, Stearyl Alcohol, Triethanolamine, Cetearyl Alcohol, Cetearyl Glucoside, Myristic Acid, Myristyl Alcohol, Palmitic Acid, Adenosine, Disodium EDTA, Disodium Stearoyl Glutamate, Hydrolyzed Hyaluronic Acid, Capryloyl Salicylic Acid, Laureth-7, T-Butyl Alcohol, Polyacrylamide, Polyethylene, Methylparaben, Phenoxyethanol, CI 15985, CI 19140, Linalool, Isoeugenol, Limonene, Citronellol, Benzyl Alcohol, Parfum

Ascorbic Acid

Butylene Glycol

Dipropylene Glycol

Sodium Hyaluronate

Hydrolyzed Rice Protein

Hydrolyzed Lupine Protein

Ceramide AP

Water, Ascorbic Acid, Butylene Glycol, Dipropylene Glycol, Glycerin, Sodium Hyaluronate, Hydrolyzed Rice Protein, Hydrolyzed Hyaluronic Acid, Hydrolyzed Lupine Protein, Ceramide AP

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.

Hydrolyzed Hyaluronic Acid is hyaluronic acid (HA) that is broken down into lower molecular weight fragments.

It's a humectant that pulls and holds water in the skin to help with hydration, plumpness, and reduce transepidermal water loss.

Because hydrolyzed hyaluronic acid is smaller in size, it can slip past your outermost layer of skin more easily than full-sized HA.

Most formulations will combine all sizes to get the best of both worlds.

Typical usage levels range from 0.01-1%. Any percentage higher than 2% might become goopy and tacky.

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!

Similar Comparisons

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. 03Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin.
  4. 04Not only is vitamin C great for your overall health and immune system, but it also has plenty of benefits for your skin. It is best supported by academic literature for:
  5. 05Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently.
  6. 06One clinical study found that using 5% topical vitamin C for six months improved signs of photodamaged skin, both on the surface and in the deeper structural layers of the skin.
  7. 07While vitamin C doesn’t replace sunscreen, studies show it can boost photoprotection when combined with Vitamin E and ferulic acid. These two ingredients help improve stability and protective effects.
  8. 08The big downside of this ingredient is formulation difficulty. Vitamin C is prone to oxidation and doesn't penetrate the skin unless formulated correctly. Research found that vitamin C absorbs into the skin best at a low pH (< 3.5) with about 20% be…
  9. 09Skin levels can saturate after repeated application; this means your skin won’t keep absorbing more once it’s full of vitamin C. This is why more isn’t always better with vitamin C and why very high concentrations don’t necessarily give extra benefits.
  10. 10Ascorbic acid generally works well with many skincare ingredients but can be irritating when combined with other active ingredients. Strong oxidizing acne treatments like benzoyl peroxide can reduce the effectiveness of vitamin C if they are used at…
  11. 11Read more about other types of Vitamin C:
  12. 12Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.
Source · skinsort.com
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Comparison edit

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