La Roche-Posay La Roche Posay Anthelios Ultra Light Face Sunscreen-SPF 60 Versus La Roche-Posay Anthelios Mineral SPF 30 Face Moisturizer with Hyaluronic Acid

Dicaprylyl Ether is created from caprylic acid. It is a texture-enhancer and emollient.

As an emollient, Dicaprylyl Ether is non-comedogenic. It helps soften and smooth the skin by creating a barrier on top. This barrier helps trap moisture in, helping to hydrate the skin.

Diethylhexyl Syringylidenemalonate (DESM) is a photostabilizer, antioxidant, and SPF booster.

One of DESM's main roles is stabilizing UV filters, especially avobenzone. Avobenzone is notoriously unstable when exposed to sunlight. By enhancing the stability of these filters, DESM helps maintain the sunscreen's effectivess through wear. It also helps improve protection against long-wave UVA rays by increasing the wavelength of the formula.

Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.

What it does:

Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.

It can also help stabilize a product by helping to disperse other ingredients.

p-anisic acid is an aromatic compound that is naturally found in some plants. It is mainly used as a fragrance ingredient but also has preservative and antimicrobial properties.

The effectiveness of this ingredient as a preservative and antimicrobial depends on the pH (with more acidic being better). This is the reason you'll see this ingredient bundled with other preservatives.

PEG-30 Dipolyhydroxystearate is an emulsifier and thickening agent.

This ingredient may not be fungal acne safe. It is a long chain fatty-acid ester that Malassezia can use to as a food source, which may trigger or worsen breakouts.

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.

This ingredient is a polymer made from acrylic acid esters and long-chain (C10–C30) alcohols.

It is used as an emulsion stabilizer and viscosity controlling agent. This helps products maintain a smooth and uniform texture.

This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.

Propylene Carbonate is commonly used in makeup and with clay, such as montmorillonite or bentonite.

Silica, also known as silicon dioxide, is a naturally occurring mineral. It is used as a fine, spherical, and porous powder in cosmetics.

Though it has exfoliant properties, the function of silica varies depending on the product.

Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt. This ingredient has many purposes in skincare: thickener, emulsifier, and exfoliator.

You'll most likely find this ingredient in cleansers where it is used to create a gel-like texture. As an emulsifier, it also prevents ingredients from separating.

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.

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.