Skin science article
Caudalie Vinoperfect Radiance Serum Versus Selfless by Hyram Peptide Q10 & Ginger Daily Defense Antioxidant Serum
Caudalie Vinoperfect Radiance Serum Versus Selfless by Hyram Peptide Q10 & Ginger Daily Defense Antioxidant Serum This brightening serum is formulated around Palmitoyl Grapevine Shoot Extract and Squalane to fade the look of dark spots and brighten dull-lookin
Caudalie Vinoperfect Radiance Serum Versus Selfless by Hyram Peptide Q10 & Ginger Daily Defense Antioxidant Serum
This brightening serum is formulated around Palmitoyl Grapevine Shoot Extract and Squalane to fade the look of dark spots and brighten dull-looking skin.
This calming serum is formulated around Zingiber Officinale Root Extract and Bisabolol to calm redness.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Butylene Glycol
Glycerin
Coco-Caprylate/Caprate
Squalane
Palmitoyl Grapevine Shoot Extract
Polyglyceryl-3 Distearate
Bisabolol
Glyceryl Stearate
Xanthan Gum
Caprylyl Glycol
Microcrystalline Cellulose
Polyacrylate Crosspolymer-6
Potassium Sorbate
Glyceryl Stearate Citrate
Citric Acid
Sodium Phytate
Sodium Hydroxide
Parfum
Water, Butylene Glycol, Glycerin, Coco-Caprylate/Caprate, Squalane, Palmitoyl Grapevine Shoot Extract, Polyglyceryl-3 Distearate, Bisabolol, Glyceryl Stearate, Xanthan Gum, Caprylyl Glycol, Microcrystalline Cellulose, Polyacrylate Crosspolymer-6, Potassium Sorbate, Glyceryl Stearate Citrate, Citric Acid, Sodium Phytate, Sodium Hydroxide, Parfum
Propanediol
Zingiber Officinale Root Extract
Phenoxyethanol
Ethylhexylglycerin
Coco-Glucoside
Xanthophylls
Sodium Benzoate
Pentapeptide-34 Trifluoroacetate
Sodium Citrate
Water, Propanediol, Glycerin, Xanthan Gum, Zingiber Officinale Root Extract, Phenoxyethanol, Ethylhexylglycerin, Coco-Glucoside, Xanthophylls, Bisabolol, Citric Acid, Sodium Benzoate, Pentapeptide-34 Trifluoroacetate, Sodium Citrate
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Bisabolol is a gentle skin conditioner, antioxidant, and soothing ingredient.
It's primary claim to fame is soothing and research shows topically applied bisabolol can quiet the chemical messengers that cause your skin to become inflamed, helping to sooth any irritation.
A clinical study found that applying 0.5% bisabolol daily for 8 weeks produced an average 9% decrease in skin pigmentation. Researchers found it can also suppress the process that leads to excess melanin production in skin.
In vitro studies found that bisabolol combined with propylene glycol significantly increased skin permeability by increasing lipid fluidity in the stratum corneum.
You'll likely see use concentrations quite low, usually 0.1-0.2%.
Overall, this is a well-tolerated ingredient that works well in formulas designed for sensitive, reactive, or post-procedure skin.
Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.
However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.
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!
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.