Peter Thomas Roth PRO Strength Retinoid Peptide Serum Versus SkinCeuticals Retinol 0.3

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

We don't have a description for Polysilicone-11.

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

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

This ingredient is a retinoid. It usually goes by a more common name: "Granactive".

Palmitoyl Hexapeptide-14 isn't fungal acne safe and is a peptide.

Ceramide NP is a type of ceramide.

Helianthus Annuus Seed Extract comes from sunflower seeds.

We don't have a description for Hordeum Vulgare Extract.

Cucumis Sativus Oil is an oil and isn't fungal acne safe.

Laminaria Ochroleuca Extract is a type of kelp. It helps sooth and hydrate the skin. By nourishing the skin's barrier, it may also help relieve irritation.

Zingiber Officinale is more commonly known as ginger.

Phytosteryl Canola Glycerides isn't fungal acne safe.

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Sodium PCA is the sodium salt of pyroglutamic acid and is naturally occurring on human skin.

Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.

Linoleic Acid is Vitamin F and a fatty acid. It is an emollient and helps thicken texture. Linoleic acid helps with hydrating skin and nourishing the skin's barrier. The top layer of skin, or epidermis, contains high amounts of linoleic acid naturally.

Oleic Acid is an Omega-9 fatty acid. It can be found in many plant oils such as avocado and marula oils.

Palmitic Acid is a fatty acid found in our skin. In cosmetics, it is usually derived from palm oil. It is a cleanser, emollient, and emulsifier.

Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.

Hydroxystearic Acid (HSA) is a wax-like fatty acid. It is a surfactant, emollient, and emulsifier.

Triolein isn't fungal acne safe.

Bisabolol is pimarily used to add fragrance to a product. However, it is also famous for helping soothe skin.

Ethylhexyl Hydroxystearate isn't fungal acne safe.

Ethoxydiglycol is a synthetic solvent.

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

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.

Mica refers to a group of silicate minerals. Mica crystals are easily split to give products a shimmer. These crystals are able to reflect light to temporarily give your skin a glowy look.

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.