Prequel Gleanser + Glycolic Non-Drying Glycolic Acid Cleanser For Face + Body Versus Regimen Lab Level Serum
Updated on October 02, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe . They have a total of 6 ingredients in common
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing and dark spots
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 Gleanser + Glycolic Non-Drying Glycolic Acid Cleanser For Face + Body 16 ingredients
Regimen Lab Level Serum 24 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Prequel Gleanser + Glycolic Non-Drying Glycolic Acid Cleanser For Face + Body 16 ingredients
Regimen Lab Level Serum 24 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Glycerin
Humectant
Water
Skin ConditioningSodium Cocoyl Isethionate
CleansingGlycolic Acid
Buffering
Cocamidopropyl Betaine
Cleansing
Sodium Hydroxide
BufferingPolyglyceryl-10 Tristearate
Skin Conditioning
Coco-Glucoside
CleansingInulin
Skin ConditioningGlycol Distearate
Emollient
Polyquaternium-10
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningTetrasodium Glutamate Diacetate
Lecithin
Emollient
Xanthan Gum
EmulsifyingWater
Skin ConditioningPropanediol
Solvent
Niacinamide
Smoothing
Betaine
Humectant
Dimethyl Isosorbide
SolventTranexamic Acid
Astringent
Acetyl Glucosamine
Skin ConditioningAlpha-Arbutin
Antioxidant
Undecylenoyl Phenylalanine
Skin ConditioningGlycyrrhiza Glabra Root Extract
Bleaching
Dipotassium Glycyrrhizate
Humectant
Tetrahydrodiferuloylmethane
Antioxidant
Hexylresorcinol
Antimicrobial
Dimethylmethoxy Chromanol
Antioxidant
Xanthan Gum
EmulsifyingLecithin
Emollient
Sclerotium Gum
Emulsion StabilisingPullulan
Disodium EDTA
Sodium Hydroxide
BufferingChlorphenesin
Antimicrobial
Caprylyl Glycol
Emollient
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningWater, Propanediol, Niacinamide, Betaine, Dimethyl Isosorbide, Tranexamic Acid, Acetyl Glucosamine, Alpha-Arbutin, Undecylenoyl Phenylalanine, Glycyrrhiza Glabra Root Extract, Dipotassium Glycyrrhizate, Tetrahydrodiferuloylmethane, Hexylresorcinol, Dimethylmethoxy Chromanol, Xanthan Gum, Lecithin, Sclerotium Gum, Pullulan, Disodium EDTA, Sodium Hydroxide, Chlorphenesin, Caprylyl Glycol, Phenoxyethanol, Ethylhexylglycerin
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
Lecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of mixture of phospholipids.
This ingredient has emollient and emulsifying properties.
As an emollient, lecithen helps soften the skin and creates a barrier to keep moisture in.
As an emulsifier, it also helps prevent water and oil ingredients from separating. Lecithin can also help ingredients be better absorbed by the skin.
This is because the phospholipids in lecithin produce liposomes. Liposomes help other ingredients get through the skin barrier.
Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that feeds fungal acne.
We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.
Some other names for this ingredient include soy lecithin and deoiled soy lecithin.
Learn more about LecithinPhenoxyethanol 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.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideWater. 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 WaterXanthan 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 GumIngredient Ratings
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When to use
Prequel Gleanser + Glycolic Non-Drying Glycolic Acid Cleanser For Face + Body 16 ingredients
Regimen Lab Level Serum 24 ingredients
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