Here's our complete breakdown comparing the ingredients, attributes, and more of REN Clean Skincare Glow and Protect Serum versus Zelens Power C .
Published on December 08, 2023
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 12 ingredients in common
Cool Features
They both contain hyaluronic acid and Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing, dark spots and better texture
Free From
They both do not contain any parabens, silicones or sulfates
What's Inside
They both contain harsh alcohols, common allergens and fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
REN Clean Skincare Glow and Protect Serum 34 ingredients
Zelens Power C 27 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
Contains Alcohol
Ingredients in this product that are types of alcohol:
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
REN Clean Skincare Glow and Protect Serum 34 ingredients
Zelens Power C 27 ingredients
Notable Ingredients
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Benefits
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Concerns
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This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Notable Ingredients
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
REN Clean Skincare Glow and Protect Serum 34 ingredients
Zelens Power C 27 ingredients
Water • Glycerin • Coco-Caprylate • Propanediol • Diisooctyl Succinate • Squalane • Sucrose Polystearate • Punica Granatum Seed Oil • Cetearyl Alcohol • Ascorbyl Tetraisopalmitate • Rosa Canina Fruit Oil • Benzyl Alcohol • Helianthus Annuus Seed Oil • Hylocereus Undatus Fruit Extract • Xanthan Gum • Glycogen • Sodium Dehydroacetate • Hydrolyzed Lupine Protein • Sodium Hyaluronate • Sodium Stearoyl Glutamate • Hippophae Rhamnoides Oil • Citric Acid • Olea Europaea Oil Unsaponifiables • Magnesium Ascorbyl Phosphate • Dehydroacetic Acid • Terminalia Ferdinandiana Fruit Extract • Rosmarinus Officinalis Leaf Extract • Parfum • Citrus Aurantium Amara Flower Extract • Linalool • Limonene • Geraniol • Benzoic Acid • Sodium Hydroxide
Water • Ascorbyl Tetraisopalmitate • Glycerin • Propanediol • Squalane • Glycine Soja Seed Extract • Terminalia Ferdinandiana Fruit Extract • Malpighia Emarginata Fruit Extract • Rosa Canina Fruit Extract • Psidium Guajava Fruit Extract • Ribes Nigrum Fruit Extract • Brassica Oleracea Acephala Leaf Extract • Aloe Barbadensis Leaf Juice • Saccharomyces Ferment Lysate Filtrate • Ascorbyl Methylsilanol Pectinate • Methylsilanol Mannuronate • Sodium Hyaluronate • Methylsilanol Hydroxyproline Aspartate • Methylpropanediol • Sodium Dehydroacetate • Butylene Glycol • Dehydroacetic Acid • Sodium Benzoate • Potassium Sorbate • Benzyl Alcohol • Xanthan Gum • Citric Acid
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterREN Clean Skincare Glow and Protect Serum contains this as ingredient number 1.
Zelens Power C contains this as ingredient number 1.
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 GlycerinREN Clean Skincare Glow and Protect Serum contains this as ingredient number 2.
Zelens Power C contains this as ingredient number 3.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Propanediol is not likely to cause sensitivity and considered safe to use.
It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolREN Clean Skincare Glow and Protect Serum contains this as ingredient number 4.
Zelens Power C contains this as ingredient number 4.
Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
Because squalane boosts hydration in the skin, it also comes with plenty of benefits: it is an antioxidant and can help fight free radicals and skin damage. Squalane is also found to have a detoxifying effect when applied.
Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life.
Research shows that squalane is non-irritating (even at 100% concentration).
In general, it's a fantastic ingredient. It does a great job at hydrating the skin, and it's suitable for those with sensitive skin.
The source of squalane may impact malassezia / fungal acne. This is because olive oil derived squalane can contain impurities such as fatty acids and plant waxes. Sugarcane derived squalane is recommended for anyone with malassezia concerns.
Is squalane vegan? This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.
Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.
Read more about squalene with an "e".
Learn more about SqualaneREN Clean Skincare Glow and Protect Serum contains this as ingredient number 6.
Zelens Power C contains this as ingredient number 5.
Ascorbyl Tetraisopalmitate is a version of ascorbic acid, or pure Vitamin C.
Ascorbyl Tetraisopalmitate has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.
Ascorbyl Tetraisopalmitate interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.
As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells.
One study found Ascorbyl Tetraisopalmitate to degrade in sunlight, but is stabilized when conbined with acetyl zingerone.
Learn more about Ascorbyl TetraisopalmitateREN Clean Skincare Glow and Protect Serum contains this as ingredient number 10.
Zelens Power C contains this as ingredient number 2.
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Benzyl Alcohol has both antibacterial and antioxidant properties. These properties help lengthen the shelf life of products. Benzyl Alcohol is a solvent and helps dissolve other ingredients. It can also improve the texture and spreadability.
Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is an astringent alcohol.
Using high concentrations of these alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.
Other types of astringent alcohols include:
According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.
Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.
Learn more about Benzyl AlcoholREN Clean Skincare Glow and Protect Serum contains this as ingredient number 12.
Zelens Power C contains this as ingredient number 25.
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.
Learn more about Xanthan GumREN Clean Skincare Glow and Protect Serum contains this as ingredient number 15.
Zelens Power C contains this as ingredient number 26.
This ingredient is a preservative with antimicrobial properties. It is the sodium salt of dehydroacetic acid.
It is especially effective at preventing bacterial and fungal growth in low concentrations.
REN Clean Skincare Glow and Protect Serum contains this as ingredient number 17.
Zelens Power C contains this as ingredient number 20.
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 HyaluronateREN Clean Skincare Glow and Protect Serum contains this as ingredient number 19.
Zelens Power C contains this as ingredient number 17.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidREN Clean Skincare Glow and Protect Serum contains this as ingredient number 22.
Zelens Power C contains this as ingredient number 27.
Dehydroacetic Acid is fungicide and bactericide. It is used as a preservative in cosmetics. Preservatives help elongate the shelf life of a product.
Dehydroacetic Acid is not soluble in water.
REN Clean Skincare Glow and Protect Serum contains this as ingredient number 25.
Zelens Power C contains this as ingredient number 22.
Terminalia Ferdinandiana Fruit Extract is from the Kakadu plum. The Kakadu plum is native to northern Australia. The Kakadu plum holds the record for having the highest amount of natural vitamin C.
Terminalia Ferdinandiana Fruit Extract is an antioxidant. Antioxidants help fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Antioxidants help stabilize free-radicals and thus may reduce the signs of aging.
The high vitamin C content of Kakadu plum also helps lighten skin. Vitamin C has been shown to block the process of skin darkening that leads to hyperpigmentation.
Kakadu plums have been used by indigenous cultures as medicine to help treat colds and as an antiseptic.
Learn more about Terminalia Ferdinandiana Fruit ExtractREN Clean Skincare Glow and Protect Serum contains this as ingredient number 26.
Zelens Power C contains this as ingredient number 7.
Here's what our community thinks of the ingredients in these two products.
REN Clean Skincare Glow and Protect Serum 34 ingredients
Zelens Power C 27 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
REN Clean Skincare Glow and Protect Serum 34 ingredients
Zelens Power C 27 ingredients
Reviews
Here's what our community thinks
REN Clean Skincare Glow and Protect Serum 34 ingredients
Mimicon
Lightweight serum, absorbs quickly. Works well on my sensitive skin, gives me some brightening and a good glow
Zelens Power C 27 ingredients
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