Versus

Curology Brightening Vitamin C Serum Versus Glow Recipe Guava Vitamin C Dark Spot Treatment Serum

Serum
Serum
American Brand United States
American Brand United States

Updated on October 23, 2024

Overview

What they are

These products are both vegan, cruelty-free, and reef safe serums. They have a total of 13 ingredients in common

Cool Features

They both contain 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 and better texture

Free From

They both do not contain any harsh alcohols, common allergens, 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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Key Ingredients

Benefits

Ingredients Side-by-side

found in both products
Guava Vitamin C Dark Spot Treatment Serum

Water

Skin Conditioning

Propanediol

Solvent

C9-12 Alkane

Solvent

Psidium Guajava Fruit Extract

Astringent

Tetrahexyldecyl Ascorbate

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps brighten skin Icon

Tranexamic Acid

Astringent
Good for Dark Spots IconGood for Scar Healing Icon

Sodium Polyacryloyldimethyl Taurate

Emulsion Stabilising

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores Icon

Ascorbyl Glucoside

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps brighten skin Icon

Magnesium Ascorbyl Phosphate

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps brighten skin Icon

Sodium Ascorbyl Phosphate

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps brighten skin Icon

Psidium Guajava Seed Oil

Emollient
Oil Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Tocopheryl Acetate

Antioxidant
0 / 0 Vitamin E IconAntioxidant Icon

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid Icon

Ferulic Acid

Antimicrobial
Antioxidant IconHelps with Anti-Aging IconGood for Dark Spots Icon

Tremella Fuciformis Sporocarp Extract

Antioxidant
Antioxidant Icon

Pyrus Malus Fruit Extract

Skin Conditioning

Musa Sapientum Fruit Extract

Skin Conditioning

Prunus Armeniaca Kernel Extract

Skin Conditioning

Pyrus Communis Fruit Extract

Skin Conditioning

Rubus Idaeus Fruit Extract

Astringent

Melia Azadirachta Flower Extract

Skin Conditioning

Melia Azadirachta Leaf Extract

Skin Conditioning

Corallina Officinalis Extract

Skin Conditioning

Coccinia Indica Fruit Extract

Skin Conditioning

Hexanoyl Dipeptide-3 Norleucine Acetate

Skin Conditioning
Peptide Icon

Polyglyceryl-10 Dioleate

Emulsifying
Not safe for Fungal Acne Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

1,2-Hexanediol

Skin Conditioning

Caprylic/Capric Triglyceride

Masking

Caprylyl Glycol

Emollient

Hydroxyacetophenone

Antioxidant
Antioxidant Icon

Sodium Stearoyl Glutamate

Cleansing

Coco-Caprylate/Caprate

Emollient
Not safe for Fungal Acne Icon

Betaine

Humectant
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots Icon

Lecithin

Emollient

Polyglyceryl-10 Dipalmitate

Emollient
Not safe for Fungal Acne Icon

Sodium Citrate

Buffering

Sodium Phytate

Potassium Sorbate

Preservative
Preservative Icon

Decyl Glucoside

Cleansing

Lauryl Glucoside

Cleansing

Ethylhexylglycerin

Skin Conditioning

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Xanthan Gum

Emulsifying

Phenoxyethanol

Preservative
Preservative Icon

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

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 Water
Antioxidant, Skin Conditioning

Magnesium Ascorbyl Phosphate (MAP) is a form of Vitamin C and is an antioxidant. It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.

MAP is created by combining ascorbic acid with magnesium salt. While MAP more gentle on the skin than ascorbic acid, it is thought to be less easily-absorbed into the skin.

Due to MAP's stability up to a pH level of 7, it is more stable to air and sunlight exposure than ascorbic acid. The best pH range for MAP is between 5 and 6.

Like other forms of Vitamin C, MAP has been shown to help reduce hyperpigmentation and simulate collagen production.

As an antioxidant, it helps protect your skin against the signs of aging.

Learn more about Magnesium Ascorbyl Phosphate
Antioxidant, Skin Conditioning

Tetrahexyldecyl 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 itโ€™s oil-soluble, THD dives deep into your skinโ€™s 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 itโ€™s stressed from pollution or sun.

Want to fade dark spots or tackle hyperpigmentation? Youโ€™ll 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: Itโ€™s 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 itโ€™s 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 Ascorbate
Antioxidant

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 Glucoside
Masking, Skin Conditioning

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 Triglyceride
Solvent

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.ย 

Itโ€™s often used to:

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 Propanediol
Humectant, Skin Conditioning, Skin Protecting

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 Glycerin
Cleansing, Emulsifying, Skin Conditioning

Sodium Stearoyl Glutamate is an emulsifier and helps condition the skin. It is amino acid-based.

In higher amounts, it may act as a cleansing agent.

Antioxidant, Masking, Skin Conditioning

Tocopherol (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 skinโ€™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 Tocopherol
Antioxidant, Skin Conditioning

Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.

One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.

Tocopheryl Acetate is commonly found in both skincare and dietary supplements.

Learn more about Tocopheryl Acetate
Antioxidant

Hydroxyacetophenone is antioxidant with skin conditioning and soothing properties. It also boosts the efficiency of preservatives.

This ingredient is not irritating or sensitizing.

Skin Conditioning, Solvent

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.ย 

It is a:

  • Humectant, drawing moisture into the skin
  • Emollient, helping to soften skin
  • Solvent, dispersing and stabilizing formulas
  • Preservative booster, enhancing the antimicrobial activity of other preservativesย 
Emollient, Humectant, Skin Conditioning

Caprylyl 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 Glycol

When to use

159 Routines
77% use in am
23% use in pm
89% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Curology Brightening Vitamin C Serum 26 ingredients

Brightening Vitamin C Serum hasn't been rated yet.
Rate it now

Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients

4.0 /5
from 6 ratings
Works Well (2) Absorbs Well (1) Expensive (1)
Butter's avatar

Butter

1 year ago
Review

โ‹†.เณƒเฟ”*:๏ฝฅ ๐ŸคŽ

๐Ÿฅฅ ๐Œ๐ฒ ๐ฌ๐ค๐ข๐ง ๐ญ๐ฒ๐ฉ๐ž: ๐ƒ๐ซ๐ฒ/๐ฌ๐ž๐ง๐ฌ๐ข๐ญ๐ข๐ฏ๐ž, ๐š๐œ๐ง๐ž ๐š๐ง๐ ๐ž๐œ๐ณ๐ž๐ฆ๐š ๐ฉ๐ซ๐จ๐ง๐ž.

๐Ÿชด ๐๐ซ๐จ๐ฌ:

ยทหš เผ˜โ‚Šยท อŸอŸอžอž๊’ฐโžณ ๐ˆ๐ญ'๐ฌ ๐๐ž๐Ÿ๐ข๐ง๐ข๐ญ๐ž๐ฅ๐ฒ ๐ž๐Ÿ๐Ÿ๐ž๐œ๐ญ๐ข๐ฏ๐ž ๐š๐ญ ๐›๐ซ๐ข๐ ๐ก๐ญ๐ž๐ง๐ข๐ง๐  ๐š๐ง๐ ๐ฆ๐š๐ค๐ข๐ง๐  ๐ฆ๐ฒ ๐ฌ๐ค๐ข๐ง ๐ญ๐จ๐ง๐ž ๐ฆ๐จ๐ซ๐ž ๐ž๐ฏ๐ž๐ง. ๐๐ข๐œ๐ž ๐ญ๐ž๐ฑ๐ญ๐ฎ๐ซ๐ž, ๐ง๐จ๐ญ ๐ฌ๐ญ๐ข๐œ๐ค๐ฒ ๐š๐ง๐ ๐ฌ๐ข๐ง๐ค๐ฌ ๐ข๐ง ๐ฐ๐ž๐ฅ๐ฅ. ๐‡๐ž๐ฅ๐ฉ๐ฌ ๐ญ๐จ ๐Ÿ๐ข๐ ๐ก๐ญ ๐š๐œ๐ง๐ž ๐ญ๐จ๐จ ๐š๐ง๐ ๐Ÿ๐ž๐ž๐ฅ๐ฌ ๐ซ๐ž๐š๐ฅ๐ฅ๐ฒ ๐ฌ๐จ๐จ๐ญ๐ก๐ข๐ง๐ .

๐ŸŒต ๐‚๐จ๐ง๐ฌ:

โ•ฐโ”ˆโžค ๐ˆ ๐ ๐จ๐ญ ๐ญ๐ก๐ข๐ฌ ๐š๐ฌ ๐š "๐Ÿ๐ซ๐ž๐ž ๐ ๐ข๐Ÿ๐ญ" (๐Ÿ๐ฎ๐ฅ๐ฅ ๐ฌ๐ข๐ณ๐ž๐) ๐๐ฎ๐ซ๐ข๐ง๐  ๐š ๐ฉ๐ซ๐จ๐ฆ๐จ๐ญ๐ข๐จ๐ง ๐š๐ง๐ ๐ฉ๐ซ๐จ๐›๐š๐›๐ฅ๐ฒ ๐ฐ๐จ๐ฎ๐ฅ๐๐ง'๐ญ ๐ก๐š๐ฏ๐ž ๐ญ๐ซ๐ข๐ž๐ ๐ข๐ญ ๐ฐ๐ข๐ญ๐ก๐จ๐ฎ๐ญ ๐ญ๐ก๐ž Show more

#expensive
#light
#absorbs well
#light scent
Daniel.Chin's avatar

Daniel Chin

1 year ago
Review

Full of amazing ingredients; has totally reduced the need for me to cocktail and upset my ph balance.

#works well