Here's our complete breakdown comparing the ingredients, attributes, and more of DefenAge 8 in 1 Bioserum versus Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum .
Last updated on July 10, 2023. Published on January 15, 2024
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 12 ingredients in common
Cool Features
They both contain AHA, hyaluronic acid, niacinamide and Vitamin E
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, parabens or sulfates
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
DefenAge 8 in 1 Bioserum 34 ingredients
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum 28 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
DefenAge 8 in 1 Bioserum 34 ingredients
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum 28 ingredients
Notable Ingredients
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Benefits
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Concerns
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Notable Ingredients
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Concerns
This product contains 2 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
DefenAge 8 in 1 Bioserum 34 ingredients
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum 28 ingredients
Water • Cyclopentasiloxane • Glycerin • Niacinamide • Sinorhizobium Meliloti Ferment Filtrate • Dimethicone • Polysorbate 20 • Dimethicone/Vinyl Dimethicone Crosspolymer • Lauryl Peg-9 Polydimethylsiloxyethyl Dimethicone • Ammonium Acryloyldimethyltaurate Crosspolymer • Phospholipids • Alpha-Arbutin • Palmitoyl Tripeptide-38 • Sodium Hyaluronate • Arabidopsis Thaliana Extract • Maris Limus Extract • Ergothioneine • Helianthus Annuus Seed Oil • Rosmarinus Officinalis Leaf Extract • Tocopheryl Acetate • Ubiquinone • Leuconostoc Ferment Filtrate • Serum Albumin • Alanyl Glutamine • Caprylic Acid • Hydroxypropyl Methylcellulose • Lecithin • Hydroxypropyl Cyclodextrin • Phytic Acid • Phenoxyethanol • Caprylyl Glycol • Ethylhexylglycerin • Hexylene Glycol • Sodium Chloride
Water • Cyclopentasiloxane • Butylene Glycol • Dimethicone • Glycerin • Polysorbate 20 • Polysilicone-11 • Lauryl Peg-9 Polydimethylsiloxyethyl Dimethicone • Hyaluronic Acid • Resveratrol • Niacinamide • Quercetin • Adenosine • Ascorbyl Tetraisopalmitate • Tocopherol • Phospholipids • Ubiquinone • Epigallocatechin Gallate • Sea Whip Extract • Bisabolol • Beta-Glucan • Phytic Acid • Xanthan Gum • Acrylates/C10-30 Alkyl Acrylate Crosspolymer • Sodium Hydroxide • Disodium EDTA • Ethylhexylglycerin • Phenoxyethanol
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterDefenAge 8 in 1 Bioserum contains this as ingredient number 1.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 1.
Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.
D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.
D5 is an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.
Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.
Learn more about CyclopentasiloxaneDefenAge 8 in 1 Bioserum contains this as ingredient number 2.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 2.
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 GlycerinDefenAge 8 in 1 Bioserum contains this as ingredient number 3.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 5.
Niacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamideDefenAge 8 in 1 Bioserum contains this as ingredient number 4.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 12.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
DefenAge 8 in 1 Bioserum contains this as ingredient number 6.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 4.
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.
Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.
The lauric acid used to create Polysorbate 20 is often derived from coconuts.
Polysorbate 20 may not be fungal acne safe.
Learn more about Polysorbate 20DefenAge 8 in 1 Bioserum contains this as ingredient number 7.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 6.
Lauryl Peg-9 Polydimethylsiloxyethyl Dimethicone is a type of silicone.
DefenAge 8 in 1 Bioserum contains this as ingredient number 9.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 8.
Phospholipids are naturally found in our skin as they are the main component of cell membranes. Phospholipids have humectant, emollient, antioxidant properties.
The phospholipids in our skin can be naturally depleted. Replenishing the phospholipids in our skin can help hydrate your skin. Due to their hygroscopic nature, they act as humectants and emollients. Humectants draw moisture from the air to your skin, while emollients help trap moisture in. This ingredient is non-occlusive.
Studies show phospholipids display antioxidant activity and may help with reducing the signs of aging.
Phospholipids are complex lipids that contain glycerin, two fatty acids, and a phosphate group. Some foods that contain phospholipids include soybeans and milk. The phospholipids found in soy come from Lecithin. This ingredient can also be synthetically created.
Some types of phospholipids:
Learn more about PhospholipidsDefenAge 8 in 1 Bioserum contains this as ingredient number 11.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 17.
Ubiquinone (Coenzyme Q10) is a molecule already found in our bodies. It is a potent antioxidant and skin-soothing ingredient.
Aging and environmental exposure diminishes our skin's natural ubiquinone levels. This is much like our natural collagen and elastin.
The good news is: studies show applying this ingredient topically replenishes ubiquinone levels in our skin. This also comes with a ton of skin benefits. These benefits include:
Ubiquinone is considered a large molecule and cannot be absorbed into the lower layers of skin. This is why it is believed to be such an effective antioxidant: it protects our skin in the upper layers and prevents damage in the deeper layers.
When used in sunscreen, ubiquinone is shown to increase ingredient stability, increase SPF factor, and add to infrared protection.
Fun fact: ubiquinone is fat-soluble.
Learn more about UbiquinoneDefenAge 8 in 1 Bioserum contains this as ingredient number 21.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 18.
Phytic Acid is a gentle AHA and antioxidant. The chemical makeup makes it classified as an AHA, such as lactic acid.
AHAs are chemical exfoliants that help remove dead skin cells. Phytic Acid has a slight exfoliating effect. Phytic Acid has been shown to help calm irritation. In some cases, it is a chelating agent. Chelating agents help prevent metals from binding to water, helping to stabilize the ingredients in a product.
As an antioxidant, phytic acid may help with the signs of aging. Antioxidants help neutralize free-radical molecules. These molecules may damage your skin cells.
An interesting fact about phytic acid is that it is considered an antinutrient. People do not have the enzyme needed to properly breakdown and digest phytic acid. When ingested, phytic acid binds to minerals and prevents them from being absorbed.
Read more about some other popular AHA's here:
Learn more about Phytic AcidDefenAge 8 in 1 Bioserum contains this as ingredient number 29.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 23.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
DefenAge 8 in 1 Bioserum contains this as ingredient number 30.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 29.
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.
DefenAge 8 in 1 Bioserum contains this as ingredient number 32.
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum contains this as ingredient number 28.
Here's what our community thinks of the ingredients in these two products.
DefenAge 8 in 1 Bioserum 34 ingredients
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum 28 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
DefenAge 8 in 1 Bioserum 34 ingredients
Paula's Choice Resist Ultra-Light Super Antioxidant Concentrate Serum 28 ingredients
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