Paula's Choice 25% Vitamin C + Glutathione Clinical Serum Versus Glow Recipe Guava Vitamin C Dark Spot Treatment Serum
Updated on July 18, 2024
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 16 ingredients in common
Cool Features
They both contain hyaluronic acid, Vitamin C and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, parabens 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
Paula's Choice 25% Vitamin C + Glutathione Clinical Serum 41 ingredients
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Paula's Choice 25% Vitamin C + Glutathione Clinical Serum 41 ingredients
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterTetrahexyldecyl Ascorbate (THD) is a stable and oil-soluble form of Vitamin C.
THD is special in that it has the ability to travel deeper into skin than traditional ascorbic acid while maintaining the same skin benefits (double win!).
Because itโs oil-soluble, THD dives deep into your skinโs fatty layers (think ceramides and cholesterol) to fight off the kind of free radicals that mess with your skin barrier. This makes it a great pair with water-based vitamin C (ascorbic acid) that mainly works on the surface.
Even at just 0.1%, THD is already showing great antioxidant activity. When used up to 2%, it helps keep your skin happy and calm, especially when itโs stressed from pollution or sun.
Want to fade dark spots or tackle hyperpigmentation? Youโll want 5% or more. Pairing it with brightening buddies like niacinamide or licorice root gives even better results. One study even used 30% THD with other brighteners and saw real results on stubborn discoloration, even in melasma-prone skin.
A note on THD: Itโs has a slightly silky, oily texture and usually shows up colorless or pale yellow (though the exact shade can vary by supplier).
While you can sneak it into water-based formulas, it really shines when paired with silicones or oils, which help your skin soak it up better.
THD is pretty stable, but itโs still vulnerable to degradation like ascorbic acid. Too much light or heat (above 113ยฐF / 45ยฐC) can break it down over time. Go for dark and opaque packaging that keeps it safe and shady!
Read more about other types of Vitamin C:
Learn more about Tetrahexyldecyl AscorbateGlycerin 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 GlycerinC9-12 Alkane is synethically created using alkanes, or paraffins. It is added to products as a solvent. This means its main purpose is to help dissolve ingredients and create even texture.
Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.
When applied to skin, Ascorbyl Glucoside turns into Ascorbic Acid.
Ascorbyl Glucoside is an antioxidant. Antioxidants help fight free-radicals, or molecules that may damage skin cells.
It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.
Read more about other types of Vitamin C:
Learn more about Ascorbyl GlucosidePyrus Malus Fruit Extract is extract from Apples. Apples are rich in Vitamin C, sugars, and antioxidants.
The sugar in Apples are humectants and help hydrate the skin. On top of that, apples also contain some acids, such as malic acid. These acids may have a mild exfoliating effect.
Last, the phytochemicals found in apples are strong antioxidants. These antioxidants help with anti-aging as they protect your skin cells against oxidative damage.
Learn more about Pyrus Malus Fruit ExtractXanthan 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 GumCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolCoco-Caprylate/Caprate is created from fatty coconut alcohol, caprylic acid, and capric acid.
It is a lightweight emollient. Emollients create a thin barrier on the skin to trap moisture in. This helps keep your skin hydrated and soft.
Once applied, Coco-Caprylate/Caprate is absorbed quickly and leaves a silky feel.
Coco-Caprylate/Caprate may not be fungal acne safe.
Learn more about Coco-Caprylate/CaprateTocopherol (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 skinโs 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 TocopherolSodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Its main functions are to maintain the pH of a product and neutralize metal ions.
The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).
Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.
Learn more about Sodium CitrateSodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
This ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.
Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.
Learn more about Caprylic/Capric TriglycerideSodium 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 HyaluronatePhenoxyethanol 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.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Paula's Choice 25% Vitamin C + Glutathione Clinical Serum 41 ingredients
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients


Reviews
Here's what our community thinks
Paula's Choice 25% Vitamin C + Glutathione Clinical Serum 41 ingredients
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
โ.เณเฟ*:๏ฝฅ ๐ค
๐ฅฅ ๐๐ฒ ๐ฌ๐ค๐ข๐ง ๐ญ๐ฒ๐ฉ๐: ๐๐ซ๐ฒ/๐ฌ๐๐ง๐ฌ๐ข๐ญ๐ข๐ฏ๐, ๐๐๐ง๐ ๐๐ง๐ ๐๐๐ณ๐๐ฆ๐ ๐ฉ๐ซ๐จ๐ง๐.
๐ชด ๐๐ซ๐จ๐ฌ:
ยทห เผโยท ออออ๊ฐโณ ๐๐ญ'๐ฌ ๐๐๐๐ข๐ง๐ข๐ญ๐๐ฅ๐ฒ ๐๐๐๐๐๐ญ๐ข๐ฏ๐ ๐๐ญ ๐๐ซ๐ข๐ ๐ก๐ญ๐๐ง๐ข๐ง๐ ๐๐ง๐ ๐ฆ๐๐ค๐ข๐ง๐ ๐ฆ๐ฒ ๐ฌ๐ค๐ข๐ง ๐ญ๐จ๐ง๐ ๐ฆ๐จ๐ซ๐ ๐๐ฏ๐๐ง. ๐๐ข๐๐ ๐ญ๐๐ฑ๐ญ๐ฎ๐ซ๐, ๐ง๐จ๐ญ ๐ฌ๐ญ๐ข๐๐ค๐ฒ ๐๐ง๐ ๐ฌ๐ข๐ง๐ค๐ฌ ๐ข๐ง ๐ฐ๐๐ฅ๐ฅ. ๐๐๐ฅ๐ฉ๐ฌ ๐ญ๐จ ๐๐ข๐ ๐ก๐ญ ๐๐๐ง๐ ๐ญ๐จ๐จ ๐๐ง๐ ๐๐๐๐ฅ๐ฌ ๐ซ๐๐๐ฅ๐ฅ๐ฒ ๐ฌ๐จ๐จ๐ญ๐ก๐ข๐ง๐ .
๐ต ๐๐จ๐ง๐ฌ:
โฐโโค ๐ ๐ ๐จ๐ญ ๐ญ๐ก๐ข๐ฌ ๐๐ฌ ๐ "๐๐ซ๐๐ ๐ ๐ข๐๐ญ" (๐๐ฎ๐ฅ๐ฅ ๐ฌ๐ข๐ณ๐๐) ๐๐ฎ๐ซ๐ข๐ง๐ ๐ ๐ฉ๐ซ๐จ๐ฆ๐จ๐ญ๐ข๐จ๐ง ๐๐ง๐ ๐ฉ๐ซ๐จ๐๐๐๐ฅ๐ฒ ๐ฐ๐จ๐ฎ๐ฅ๐๐ง'๐ญ ๐ก๐๐ฏ๐ ๐ญ๐ซ๐ข๐๐ ๐ข๐ญ ๐ฐ๐ข๐ญ๐ก๐จ๐ฎ๐ญ ๐ญ๐ก๐ Show more
Full of amazing ingredients; has totally reduced the need for me to cocktail and upset my ph balance.