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Bliss Bright Idea Vitamin C + Tri-Peptide Collagen Protecting & Brightening Moisturizer Versus Saturday Skin Yuzu Vitamin C Bright Eye Cream

Bliss Bright Idea Vitamin C + Tri-Peptide Collagen Protecting & Brightening Moisturizer Versus Saturday Skin Yuzu Vitamin C Bright Eye Cream This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Palmitoyl Tripeptide-5 to brighten dull-l

Written by Peptide Therapy Guide Editorial Team
For education only

This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.

Bliss Bright Idea Vitamin C + Tri-Peptide Collagen Protecting & Brightening Moisturizer Versus Saturday Skin Yuzu Vitamin C Bright Eye Cream

This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Palmitoyl Tripeptide-5 to brighten dull-looking skin and soften the look of wrinkles.

This brightening eye moisturizer is formulated around Panthenol and Niacinamide to brighten dull-looking skin and soften the look of wrinkles.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Caprylic/Capric Triglyceride

Propanediol

Cetearyl Alcohol

3-O-Ethyl Ascorbic Acid

Coco-Caprylate/Caprate

Hydrogenated Farnesene

Glyceryl Stearate

Butyrospermum Parkii Butter

Limnanthes Alba Seed Oil

Palmitoyl Tripeptide-5

Glycyrrhiza Glabra Root Extract

Saccharide Isomerate

Ceramide Ng

Tocopherol

Niacinamide

Mangifera Indica Fruit Extract

Euterpe Oleracea Fruit Extract

Camellia Sinensis Leaf Extract

Pseudozyma Epicola/Camellia Japonica Seed Oil Ferment Extract Filtrate

Aloe Barbadensis Leaf Juice

Persea Gratissima Oil

Glycine Soja Oil

Simmondsia Chinensis Seed Oil

Argania Spinosa Kernel Oil

Xanthan Gum

Acacia Senegal Gum

Hydroxyacetophenone

Cetearyl Olivate

Caprylyl Glycol

Polyacrylate Crosspolymer-6

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Polyglyceryl-4 Laurate/Succinate

PEG-100 Stearate

Sorbitan Olivate

Cetearyl Glucoside

Hexylene Glycol

Ethoxydiglycol

Sodium Citrate

Tetrasodium Glutamate Diacetate

Sodium Metabisulfite

Phenoxyethanol

Ethylhexylglycerin

Potassium Sorbate

Sodium Benzoate

Citric Acid

Parfum

Limonene

Water, Glycerin, Caprylic/Capric Triglyceride, Propanediol, Cetearyl Alcohol, 3-O-Ethyl Ascorbic Acid, Coco-Caprylate/Caprate, Hydrogenated Farnesene, Glyceryl Stearate, Butyrospermum Parkii Butter, Limnanthes Alba Seed Oil, Palmitoyl Tripeptide-5, Glycyrrhiza Glabra Root Extract, Saccharide Isomerate, Ceramide Ng, Tocopherol, Niacinamide, Mangifera Indica Fruit Extract, Euterpe Oleracea Fruit Extract, Camellia Sinensis Leaf Extract, Pseudozyma Epicola/Camellia Japonica Seed Oil Ferment Extract Filtrate, Aloe Barbadensis Leaf Juice, Persea Gratissima Oil, Glycine Soja Oil, Simmondsia Chinensis Seed Oil, Argania Spinosa Kernel Oil, Xanthan Gum, Acacia Senegal Gum, Hydroxyacetophenone, Cetearyl Olivate, Caprylyl Glycol, Polyacrylate Crosspolymer-6, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyglyceryl-4 Laurate/Succinate, PEG-100 Stearate, Sorbitan Olivate, Cetearyl Glucoside, Hexylene Glycol, Ethoxydiglycol, Sodium Citrate, Tetrasodium Glutamate Diacetate, Sodium Metabisulfite, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate, Citric Acid, Parfum, Limonene

Behenyl Alcohol

C12-15 Alkyl Benzoate

Panthenol

Diphenylsiloxy Phenyl Trimethicone

Hydrogenated Coco-Glycerides

Pentylene Glycol

Synthetic Beeswax

C12-16 Alcohols

Butylene Glycol Dicaprylate/Dicaprate

Methyl Trimethicone

Palmitic Acid

Hydrogenated Lecithin

Diphenyl Dimethicone

Polymethylsilsesquioxane

Chlorella Vulgaris Extract

Glucose

Butylene Glycol

Fructooligosaccharides

Fructose

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Tromethamine

Diglycerin

Caffeine

Adenosine

Sodium Phytate

1,2-Hexanediol

Glyceryl Glucoside

Citrus Junos Fruit Extract

Cholesterol

PEG-800

Polysorbate 20

Sh-Oligopeptide-1

Sh-Polypeptide-1

Oligopeptide-2

Sh-Polypeptide-22

Sh-Polypeptide-45

Sh-Polypeptide-8

Sh-Polypeptide-9

Water, Glycerin, Behenyl Alcohol, C12-15 Alkyl Benzoate, Panthenol, Diphenylsiloxy Phenyl Trimethicone, Hydrogenated Coco-Glycerides, Niacinamide, Pentylene Glycol, Synthetic Beeswax, C12-16 Alcohols, Butylene Glycol Dicaprylate/Dicaprate, Methyl Trimethicone, Palmitic Acid, Hydrogenated Lecithin, Diphenyl Dimethicone, Polymethylsilsesquioxane, Chlorella Vulgaris Extract, Glucose, Butylene Glycol, Fructooligosaccharides, Fructose, Hydroxyacetophenone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, 3-O-Ethyl Ascorbic Acid, Diglycerin, Xanthan Gum, Ethylhexylglycerin, Caffeine, Adenosine, Sodium Phytate, 1,2-Hexanediol, Glyceryl Glucoside, Citrus Junos Fruit Extract, Cholesterol, PEG-800, Phenoxyethanol, Polysorbate 20, Tocopherol, Sh-Oligopeptide-1, Sh-Polypeptide-1, Oligopeptide-2, Sh-Polypeptide-22, Sh-Polypeptide-45, Sh-Polypeptide-8, Sh-Polypeptide-9

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.

3-O-Ethyl Ascorbic Acid is one of the most popular "stable" vitamin C derivatives in skincare.

Plain 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:

In 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.

The 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.

A 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.

Typical real world usage sits around 0.5-5% (and 1-2% is common for daily serums).

Amounts 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.

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

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.

Hydroxyacetophenone is a small phenolic molecule that earns its place in a formulas as an antioxidant and preservative booster.

As a phenol, it is able to neutralize free radicals to protect both the product and the skin from oxidative stress.

Though it can't kill microbes on its own, it works as a good supporting agent when combined with other preservatives like Phenoxyethanol or 1,2-Hexanediol.

This ingredient naturally occurs as piceol in Norwegian spruce needles (~0.4-1.1% dry weight and in cloudberries). Though the cosmetic-grade material is synthesized for purity and consistency.

You'll usually see it used at low levels and suppliers recommend up to 1% added to a water phase.

Safety testing was done at concentrations like 0.05% in SPF products and 0.5% in a Human Repeated Insult Patch Test. The safety evidence is assuring; this ingredient is safe for cosmetics in current use and also holds safety status as a food flavoring as well.

An honest caveat: the "soothing" and "anti-inflammatory" claims come mostly from supplier marketing rather than published clinical trials. The Cosmetic Ingredient Review's own literature search found no useful efficacy studies on this ingredient.

So the antioxidant and preservative-boosting roles are the well supported ones while the calming benefit is plausible but thinly evidenced.

Overall, this is a well-tolerated, low-irritation multitasker that quietly helps a formula stay fresh and stable.

Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.

And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.

You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.

In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.

If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.

In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).

Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.

Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.

The type of niacinamide used in skincare is synthetically created.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

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.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

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About the author

Peptide Therapy Guide Editorial Team

Editorial team for Peptide Therapy Guide.

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