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TruSkin Vitamin C Face Serum with Hyaluronic Acid & Vitamin E Versus Olay Vitamin C + Peptide 24 Brightening Serum

TruSkin Vitamin C Face Serum with Hyaluronic Acid & Vitamin E Versus Olay Vitamin C + Peptide 24 Brightening Serum This brightening serum is formulated around Aloe Barbadensis Leaf Juice and Sodium Ascorbyl Phosphate to brighten dull-looking skin and refine sk

By Peptide Skincare & Beauty Editorial TeamPublished

TruSkin Vitamin C Face Serum with Hyaluronic Acid & Vitamin E Versus Olay Vitamin C + Peptide 24 Brightening Serum

This brightening serum is formulated around Aloe Barbadensis Leaf Juice and Sodium Ascorbyl Phosphate to brighten dull-looking skin and refine skin texture.

This brightening serum is formulated around Niacinamide and Lactic Acid to brighten dull-looking skin and refine skin texture.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Aloe Barbadensis Leaf Juice

Sodium Ascorbyl Phosphate

Dimethyl Sulfone

Cassia Angustifolia Seed Polysaccharide

Hamamelis Virginiana Water

Tocopheryl Acetate

Glycerin

Arginine

Carbomer

Centella Asiatica Extract

Equisetum Arvense Extract

Taraxacum Officinale Extract

Pelargonium Graveolens Extract

Simmondsia Chinensis Seed Oil

Phenoxyethanol

Ethylhexylglycerin

Sodium Hydroxide

Water, Aloe Barbadensis Leaf Juice, Sodium Ascorbyl Phosphate, Dimethyl Sulfone, Cassia Angustifolia Seed Polysaccharide, Hamamelis Virginiana Water, Tocopheryl Acetate, Glycerin, Arginine, Carbomer, Centella Asiatica Extract, Equisetum Arvense Extract, Taraxacum Officinale Extract, Pelargonium Graveolens Extract, Simmondsia Chinensis Seed Oil, Phenoxyethanol, Ethylhexylglycerin, Sodium Hydroxide

Dimethicone

Niacinamide

Lactic Acid

Polyacrylate Crosspolymer-6

3-O-Ethyl Ascorbic Acid

Palmitoyl Pentapeptide-4

Panthenol

Trehalose

PEG-11 Methyl Ether Dimethicone

Sodium Lactate

Sodium Benzoate

Parfum

Hydroxylauric Acid

Ascorbic Acid

Avena Sativa Peptide

Water, Glycerin, Dimethicone, Niacinamide, Lactic Acid, Polyacrylate Crosspolymer-6, 3-O-Ethyl Ascorbic Acid, Palmitoyl Pentapeptide-4, Panthenol, Trehalose, PEG-11 Methyl Ether Dimethicone, Sodium Lactate, Sodium Benzoate, Parfum, Hydroxylauric Acid, Ascorbic Acid, Avena Sativa Peptide

Reviews

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.

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.

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. 033-O-Ethyl Ascorbic Acid is one of the most popular "stable" vitamin C derivatives in skincare.
  4. 04Plain ascorbic acid is fantastic but notoriously fragile; it browns, oxidizes, and loses potency fast. So attaching an ethyl group to the third carbon of the molecule gives it some cool perks:
  5. 05In a formula, it does the 3 classic vitamin C jobs: it acts as an antioxidant, helps brighten skin tone by inhibiting tyrosinase, and supports collagen.
  6. 06The evidence is reasonably solid for a cosmetic ingredient; Liao and colleagues (2018) showed it's significantly more stable than ascorbic acid while still being effective.
  7. 07A 2021 study by Zerbinati and colleagues tested a serum with 30% 3-O-ethyl-l-ascorbic acid and 1% lactic acid significantly increased collagen production, reduced UVB-induced DNA damage, and decreased melanin on a reconstructed pigmented skin model.
  8. 08Typical real world usage sits around 0.5-5% (and 1-2% is common for daily serums).
  9. 09Amounts up to 30% have been shown to be non-irritating on human skin samples, but two isolated cases reported allergic contact dermatitis so a patch test is sensible if you have reactive skin.
  10. 10Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin.
  11. 11Not 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:
  12. 12Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently.
  13. 13One 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.
  14. 14While 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.
  15. 15The 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…
  16. 16Skin 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.
  17. 17Ascorbic 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…
  18. 18Read more about other types of Vitamin C:
  19. 19Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.
  20. 20This peptide is extracted from oat. It has skin conditioning properties.
Source · skinsort.com ⟶
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