ZO Skin Health 10% Vitamin C Self-Activating Versus AlumierMD Everactive C&E + Peptides

ZO Skin Health 10% Vitamin C Self-Activating Versus AlumierMD Everactive C&E + Peptides

This brightening serum is formulated around Ascorbic Acid and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and fade the look of dark spots.

This anti-aging serum is formulated around Palmitoyl Tripeptide-38 and Camellia Sinensis Leaf Extract to soften the look of wrinkles and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Cyclopentasiloxane

Dimethicone Crosspolymer

Ascorbic Acid

Dimethicone

Citrus Aurantium Amara Peel Oil

Squalane

Tetrahexyldecyl Ascorbate

Tocopheryl Acetate

Ubiquinone

Limonene

Citral

Phenoxyethanol

Cyclopentasiloxane, Dimethicone Crosspolymer, Ascorbic Acid, Dimethicone, Citrus Aurantium Amara Peel Oil, Squalane, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, Ubiquinone, Limonene, Citral, Phenoxyethanol

Water

Propanediol

Polyglyceryl-4 Caprate

Polyglyceryl-6 Caprylate

Glycerin

Palmitoyl Tripeptide-38

Camellia Sinensis Leaf Extract

Polyglyceryl-3 Cocoate

Polyglyceryl-6 Ricinoleate

Hydroxyethylcellulose

Hydroxypropyl Cyclodextrin

1,2-Hexanediol

Hydroxyacetophenone

Citric Acid

Disodium EDTA

Sodium Benzoate

Potassium Sorbate

Water, Propanediol, Polyglyceryl-4 Caprate, Polyglyceryl-6 Caprylate, Glycerin, Palmitoyl Tripeptide-38, Camellia Sinensis Leaf Extract, Tocopheryl Acetate, Polyglyceryl-3 Cocoate, Polyglyceryl-6 Ricinoleate, Hydroxyethylcellulose, Hydroxypropyl Cyclodextrin, 1,2-Hexanediol, Hydroxyacetophenone, Citric Acid, Disodium EDTA, Sodium Benzoate, Potassium Sorbate, Ascorbic Acid

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin.

Not 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:

Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently.

One 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.

While 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.

The 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% being the upper limit for effective absorption.

Skin 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.

Ascorbic 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 the same time; they are often recommended for use at different times of day.

Read more about other types of Vitamin C:

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Tocopheryl Acetate is a stable, shelf-friendly form of vitamin E.

Formulators love it because plain vitamin E oxidizes quickly once it hits air. This acetate version stays stable and resists going off, helping to extend a product's shelf life.

It's actually inactive on its own and works like a slow-release "storage" form; the enzymes in your skin called esterases gradually convert it into active vitamin E over time.

One in vivo study showed 5% of the acetate in the living layer of the epidermis converted to vitamin E after 5 days of application. This study also found the skin gained protection against UV damage even though the conversion was slow and small.

Once converted, vitamin E acts as a skin's main fat-soluble antioxidant that fights free radicals to protect skin from damage.

Topical vitamin E generally boosts the skin's photoprotection, and it reduced UV-damage in animal models.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

Overall, it has a pretty solid safety profile and has been found to be non-irritating and non-comedogenic. Allergic reactions may happen but stay rare due to how widely the ingredient gets used.

The concentration will vary depending on the formula; industry data shows 0.1% in baby lotions, 3% in lipsticks, and 5% in foot powders. You can also find this ingredient at 100% in a pure vitamin E oil.

Most leave-on skincare keeps it at the lower end, often between 0.5-1%.

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