cyrene Brightening & Firming Serum Versus Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum
Overview
What they are
These products are both cruelty-free, fungal acne (malassezia) safe, and reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain AHA, hyaluronic acid, Vitamin C and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
cyrene Brightening & Firming Serum 15 ingredients
Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum 16 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
cyrene Brightening & Firming Serum 15 ingredients
Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum 16 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin Conditioning3-O-Ethyl Ascorbic Acid
Skin Conditioning
Glycolic Acid
Buffering
Glycerin
Humectant
Propylene Glycol
Humectant
Dipropylheptyl Carbonate
EmollientSodium Polyacrylate
Absorbent
Sodium Bicarbonate
Abrasive
Tocopherol
Antioxidant
Tocopheryl Acetate
Antioxidant
Xanthan Gum
EmulsifyingSodium Hyaluronate
Humectant
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningAllantoin
Skin Conditioning
Water
Skin ConditioningDipropylene Glycol
MaskingAscorbic Acid
Antioxidant
Dimethyl Isosorbide
SolventRicinoleth-40
CleansingAminomethyl Propanol
BufferingLactic Acid
Buffering
Tocopherol
Antioxidant
Glycyrrhiza Glabra Root Extract
Bleaching
Ferulic Acid
Antimicrobial
Morus Alba Fruit Extract
Antioxidant
Sodium Hyaluronate
Humectant
Glycolic Acid
Buffering
Adenosine
Skin Conditioning
Glycerin
Humectant
Phenoxyethanol
Preservative
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinGlycolic Acid is arguably the most famous AHA with a ton of research to back up its benefits.
Its main role is to remove the top layer of dead skin cells, allowing newer skin cells to emerge.
Specifically, AHAs work by breaking down the structural "glue" holding the old skin cells in place. Getting rid of the old skin cells allows skin to regenerate newer skin cells in its place. A build up of dead skin cells can lead to tired and dull looking skin.
Due to this, glycolic acid helps with:
Fun fact: Glycolic acid increases skin hydration by playing a role in creating molecules that create hyaluronic acid naturally.
When starting glycolic Acid, it is normal to feel slight stinging.
The pH value and concentration of glycolic acid play a role in the effectiveness of the product. Concentrations between 5-20% glycolic acid have been shown to be effective in clinical studies.
Recent studies have shown Glycolic Acid may protect the skin against UV damage. However, you should always wear SPF, especially when using exfoliants.
Read more about some other popular AHA's here:
Learn more about Glycolic AcidPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolWater. 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. Stay hydrated!
Learn more about WaterIngredient Ratings
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When to use
cyrene Brightening & Firming Serum 15 ingredients
Dr. Dennis Gross Skincare Vitamin C Lactic 15% Firm & Bright Serum 16 ingredients
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