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Prequel Lucent-C Brightening Vitamin C Serum Versus SkinCeuticals C E Ferulic® With 15% L-Ascorbic Acid

Serum
Serum
American Brand United States
American Brand United States

Updated on June 22, 2024

Overview

What they are

These products are both vegan, fungal acne (malassezia) safe, and reef safe serums. They have a total of 4 ingredients in common

Cool Features

They both contain Vitamin C

Suited For

They're both likely to be good for anti aging, brightening skin, sensitive 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

Click any item below to learn more and see relevant ingredients

Free from

Safety & Ethics

American Brand

Brand country of origin

Free from

Safety & Ethics

pH Level 2.75

Product acidity level

American Brand

Brand country of origin

At a glance

Click on any of the items below to learn more

Ingredients, at a glance

What's in this product, and how it might affect your skin.

Notable Ingredients

Benefits

Ingredients, at a glance

What's in this product, and how it might affect your skin.

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Lucent-C Brightening Vitamin C Serum
Water 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.

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Propanediol Solvent

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.

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Ascorbic Acid Antioxidant, Buffering, Masking
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Loved by users
Vitamin CVitamin C IconAntioxidantAntioxidant Icon7 Benefits
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Ethoxydiglycol Humectant, Solvent
0 / 0

Ethoxydiglycol is a synthetic solvent.

0 Com. / 0 Irr.
Mixed reviews
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Isopentyldiol Humectant, Solvent

Isopentyldiol is a synthetic solvent, humectant, and emollient.

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

Ferulic Acid is a plant based antioxidant. By fighting free-radicals, ferulic acid can help reduce the formation of fine lines and hyperpigmentation.

Loved by users
AntioxidantAntioxidant Icon2 Benefits
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Ergothioneine Antioxidant
Antioxidant Icon

Ergothioneine is an amino acid found naturally in mushrooms, grains, and meat. It has antioxidant and skin soothing properties.

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AntioxidantAntioxidant Icon
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Inulin Skin Conditioning

Inulin is a polysaccharide (carbohydrate) with prebiotic and antioxidant properties.

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Niacinamide Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

Niacinamide has emerged as an all-star ingredient due to its many benefits.

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NiacinamideNiacinamide Icon9 Benefits
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Hydroxyacetophenone Antioxidant
Antioxidant Icon

Hydroxyacetophenone is antioxidant and helps with skin conditioning.

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AntioxidantAntioxidant Icon
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Aminomethyl Propanol Buffering

Aminomethyl Propanol is used to adjust the pH of products. It is also used as a base to create other organic compounds. Having a balanced pH is important for protecting your skin.

Mixed reviews
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1,2-Hexanediol Skin Conditioning, Solvent

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth.

Mixed reviews
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Caprylyl Glycol Emollient, Humectant, Skin Conditioning

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

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Mannitol Humectant, Masking, Moisturising

Mannitol is a sugar alcohol. It is a humectant and moisturizes the skin. In vitro (not tested on a living organism), mannitol displays antioxidant properties.

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C E Ferulic® With 15% L-Ascorbic Acid
Water 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.

Loved by users
Learn more
Ethoxydiglycol Humectant, Solvent
0 / 0

Ethoxydiglycol is a synthetic solvent.

0 Com. / 0 Irr.
Mixed reviews
Learn more
Ascorbic Acid Antioxidant, Buffering, Masking
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Loved by users
Vitamin CVitamin C IconAntioxidantAntioxidant Icon7 Benefits
Learn more
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Loved by users
2 Benefits
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Propylene Glycol Humectant, Skin Conditioning, Solvent
0 / 0 Helps hydrate Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.

0 Com. / 0 Irr.
Very disliked
Helps hydrate Dry SkinHelps hydrate Dry Skin Icon2 Concerns
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Laureth-23 Cleansing, Emulsifying
3 / 0

Laureth-23 is created by reacting ethylene oxide with Lauryl Alcohol.

3 Com. / 0 Irr.
Very disliked
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Phenoxyethanol Preservative
Preservative Icon

Phenoxyethanol 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.

Very disliked
PreservativePreservative Icon
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Tocopherol Antioxidant, Masking, Skin Conditioning
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

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.

0-3 Com. / 0-3 Irr.
Liked by users
Vitamin EVitamin E IconAntioxidantAntioxidant Icon3 Benefits
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Triethanolamine Buffering, Emulsifying, Masking
2 / 0

Triethanolamine is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.

2 Com. / 0 Irr.
Very disliked
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Ferulic Acid Antimicrobial, Antioxidant
Antioxidant IconHelps with Anti-Aging IconGood for Dark Spots Icon

Ferulic Acid is a plant based antioxidant. By fighting free-radicals, ferulic acid can help reduce the formation of fine lines and hyperpigmentation.

Loved by users
AntioxidantAntioxidant Icon2 Benefits
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Panthenol Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation Icon

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

0 Com. / 0 Irr.
Loved by users
3 Benefits
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Sodium Hyaluronate Humectant, Skin Conditioning
0 / 0 Hyaluronic Acid Icon

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

0 Com. / 0 Irr.
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Hyaluronic AcidHyaluronic Acid Icon
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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
Loved

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, Buffering, Masking
Loved

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.

Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.

Remember: Vitamin C should not replace sunscreen!

Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.

Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.

The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.

Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.

Read more about other types of Vitamin C:

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Learn more about Ascorbic Acid
Humectant, Solvent
Mixed

Ethoxydiglycol is a synthetic solvent.

Solvents are used to keep ingredients together in a product. They can help dissolve ingredients to stable bases or help evenly distribute ingredients throughout the product.

Ethoxydiglycol also helps deliver other key ingredients into the skin.

Learn more about Ethoxydiglycol
Antimicrobial, Antioxidant
Loved

Ferulic Acid is a plant based antioxidant. By fighting free-radicals, ferulic acid can help reduce the formation of fine lines and hyperpigmentation.

When used with Vitamin C, Ferulic Acid has shown to prevent Vitamin C from breaking down. In other words, it acts as a stabilizer.

Ferulic Acid is sometimes used to preserve food. Foods containing Ferulic Acid include: oats, rice, eggplant, citrus.

In medicine, Ferulic Acid is being studied for helping with diabetes, Alzheimer's, and cardiovascular diseases.

Learn more about Ferulic Acid

When to use

143 Routines
93% use in am
7% use in pm
90% use every day
When to use See routines that use it ->
558 Routines
90% use in am
10% use in pm
96% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Prequel Lucent-C Brightening Vitamin C Serum 14 ingredients

3.7 /5
from 6 ratings
Great Value (4) Absorbs Well (4) Works Well (2)
ClaireEstelle's avatar

Claire L.

3 months ago · Combination Skin
Review

I really like this Vitamin C serum and have noticed an improvement in some of my dark spots. The serum is packaged in opaque glass to protect it...

I really like this Vitamin C serum and have noticed an improvement in some of my dark spots. The serum is packaged in opaque glass to protect it from UV. I don't like the pump very much as the formula is very liquid and it shoots out fast - something to be aware of. It also has to go on first (before other serums) as things can pill on top of it. However, for the price and effectiveness, I'm willing to overlook these things and will re-purchase.

lacydenise's avatar

denice

2 months ago · Oily Skin
Review

i have SUPER sensitive skin and it’s really hard to branch out with products. The oily texture wasn’t for me but it made my skin smooth/glowy with...

i have SUPER sensitive skin and it’s really hard to branch out with products. The oily texture wasn’t for me but it made my skin smooth/glowy with no major breakouts, I think if I used it longer there could’ve been better results.

SkinCeuticals C E Ferulic® With 15% L-Ascorbic Acid 12 ingredients

4.6 /5
from 13 ratings
Strong Scent (2) Expensive (1) Hydrating (1)
indindi's avatar

indindi

1 year ago · Combination Skin
Review

the most cruel thing that anyone has done to me was give me a free sample of this product while its retail price is half of the cost of my weekly...

the most cruel thing that anyone has done to me was give me a free sample of this product while its retail price is half of the cost of my weekly mortgage repayment 🫥

yyyydddd's avatar

yyyydddd

4 months ago · Dry Skin
Review

Hate the smell and irritating...