Naturium Retinaldehyde Cream Serum 0.05% Versus Naturium Retinaldehyde Cream Serum 0.10%

C9-12 Alkane is synethically created using alkanes, or paraffins. It is added to products as a solvent. This means its main purpose is to help dissolve ingredients and create even texture.

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Carbomer is a high-molecular weight polymer of acrylic acid. It is used to form gels and thicken formulas.

Due to its large molecular size, carbomer has minimal skin penetration and is considered an inert ingredient.

Castor Oil/Ipdi Copolymer is an oil and isn't fungal acne safe.

Cellulose is the main component of plant cell walls. It is used as an emulsifier, absorbent, and texture enhancer.

This ingredient has many functions:

Cetyl Diglyceryl Tris(Trimethylsiloxy)Silylethyl Dimethicone is a type of silicone.

Coco-Caprylate/Caprate is created from fatty coconut alcohol, caprylic acid, and capric acid.

It is a lightweight emollient. Emollients create a thin barrier on the skin to trap moisture in. This helps keep your skin hydrated and soft.

We don't have a description for Dilinoleic Acid/Butanediol Copolymer yet.

Dipropylene Glycol is a synthetically created humectant, stabilizer, and solvent.

This ingredient helps:

We don't have a description for Faex Extract yet.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

We don't have a description for Glyceryl Polyacrylate yet.

We don't have a description for Guanosine yet.

We don't have a description for Hexadecene yet.

We don't have a description for Hydrolyzed Yeast Extract yet.

We don't have a description for Olivine Extract yet.

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.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

Polyacrylate Crosspolymer-6 is a texture enhancer and pH adjuster.

It is be used to thicken water-based products and create a gel-texture with a velvet feel.

Polyglyceryl-10 Dipalmitate isn't fungal acne safe.

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

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

It’s often used to:

Punica Granatum Seed Extract comes from pomegranate seeds.

Read more about the benefits of pomegranate seeds here.

PVM/MA Copolymer is a synthetic and high-molecular weight polymer. It is used to create a flexible film that helps ingredients "stick together" on hair or skin. It also helps reduce static, help emulsions behave, and tweaks the thickness and flow of a product.

You'll most likely find this ingredient in hair styling products because that film is what helps styles last.

Retinal is a form of retinoid. Retinoids are the gold-standard class of anti-aging ingredients.

Retinal has many benefits as other retinoids: improve skin texture, reduce large pores, reduce the effects of aging, reduce the visibility of dark spots, heal scars, and fight acne.

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

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.

Sodium metabisulfite is also known as Sodium Pyrosulfite. It is a preservative, antioxidant, and disinfectant.

As a preservative, it helps stabilize cosmetic formulas without affecting their color or scent.

Sorbitan Oleate is created from compounds in oleic acid and sorbitol.

It is used to stabilize a product by preventing ingredients from separating. Emulsifiers help keep ingredients together, such as oils and water.

We don't have a description for Soy Amino Acids yet.

T-Butyl Alcohol it is most commonly used as a solvent.

At room temperature, T-Butyl Alcohol melts and has a similar smell to camphor.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

We don't have a description for Triheptanoin yet.

We don't have a description for Uracil yet.

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.