Prequel Lucent-C Brightening Vitamin C Serum Versus Isomers Skincare Laboratories Vitamin C & Ferulic 15% Skin Brightening Concentrate
Updated on May 29, 2025
Overview
What they are
These products are both cruelty-free, fungal acne (malassezia) safe, and reef safe serums. They have a total of 5 ingredients in common
Cool Features
They both contain Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, sensitive skin, reducing pores, 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
Prequel Lucent-C Brightening Vitamin C Serum 14 ingredients
Isomers Skincare Laboratories Vitamin C & Ferulic 15% Skin Brightening Concentrate 12 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
Prequel Lucent-C Brightening Vitamin C Serum 14 ingredients
Isomers Skincare Laboratories Vitamin C & Ferulic 15% Skin Brightening Concentrate 12 ingredients
Key Ingredients
Benefits
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.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
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 preservatives
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 AcidHydroxyacetophenone is antioxidant with skin conditioning and soothing properties. It also boosts the efficiency of preservatives.
This ingredient is not irritating or sensitizing.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’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 PropanediolWater. 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
Prequel Lucent-C Brightening Vitamin C Serum 14 ingredients
Isomers Skincare Laboratories Vitamin C & Ferulic 15% Skin Brightening Concentrate 12 ingredients
Reviews
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Prequel Lucent-C Brightening Vitamin C Serum 14 ingredients
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